£2,100.00

Ioptron CEM 60 Mounting

We've been waiting for a sub 30lb mount with around 60lb carrying capacity for some time now! The iOptron CEM60 fits into an ideal position in the market, where the portability vs. carrying capacity ratio allows for either observatory or field use with some of the largest or smallest telescopes available to amateurs. - Altair

This past year iOptron introduced a new design concept, the center-balanced equatorial mount (or CEM) called the ZEQ25. Now, iOptron have introduce the CEM60, with an increased payload of 27kg (60 lbs) and a mount-only weight of 12.3 kg (27lbs)!

The CEM60 puts the weight of the payload at the center of gravity allowing for greater natural stability. This makes the mount extremely light compared to its payload with a payload-to-weight ratio of 2.2. That's why the CEM60 is a good choice for both portable field setup, AND permanent observatory use.

The CEM60 redefines the concept of the equatorial mount for viewing and astrophotography.
Two versions of the CEM60 will be available. One with Programmable Periodic Error Correction (PPEC) and another with optional Real-Time PEC for incredibly high tracking accuracy, intended for customers with long focal length instruments, or those who want the very best tracking performance available.

The mount features a large dual 1.75" / 3" dovetail clamp for convenient use of most telescopes on the market. Other features include an adjustable counterweight bar to prevent obstruction with the tripod or pier. Polar alignment is quick and easy with the AccuAligningTM polar scope being accessible all the time since because it isn't blocked by the declination shaft.

The CEM60 is equipped with the most advanced GOTONOVA® GOTO technology, making it one of the most powerful and accurate GOTO mounts available. The CEM database includes over 300,000 objects. The Go2Nova® Hand Controller is intuitive to use and its large 8-line LCD screen simplifies the process of setting telescopes and locating objects.
Another feature is through-cabling to reduce the number of cables around your telescope and imaging accessories. 2x 12v power-out ports and 4x USB ports are conveniently placed just below the dovetail clamp on the mount's RA axis.

Feature list:

A new design, center-balanced equatorial mount (CEM) for maximum payload and minimum mount weight
Specialized astrophotography mount ideal for entry-level and intermediate Astro-photographers
Patent pending non-contact magnetically loaded gear system
Payload of 60 lbs (27.2 kg) with the mount-only weight of 27 lbs (12.3 kg)
Gear switches on both R.A. and DEC axes for easy balancing when disengaged
Adjustable counterweight shaft for 0º latitude operation
Screw/worm type latitude adjuster for precision adjustments
Milling machine tooling vise type latitude bearing and locks system for rock solid positioning
User side azimuth fine adjusters for easy azimuth adjustment
Precision stepper motor with 0.06 arcsec accuracy for precise GOTO and accurate tracking
iOptron AccuAligningTM calibrated polar scope with dark-field illumination and easy polar alignment procedure, allowing for fast and accurate polar alignment
Polar alignment routine for those who can't see the Pole Star
Go2Nova® 8407 controller with Advanced GOTONOVA® GOTO Technology with built in heater
Permanent periodic error correction (PPEC) or Realtime periodic error correction (RPEC)
Integrated ST-4 autoguiding port
Built-in 32-channel Global Positioning System (GPS)
Built-in or customized cable management system
Spring loaded Vixen/Losmandy dual saddle
150mm base size to match optional 2 inch heavy-duty stainless steel tripod (8kg) or 42/48 inch pier
Optional PowerWeightTM rechargeable battery pack

Technical Specs:

Mount
Center-balanced Equatorial Mount (CEM)
Payload 60 lb (27.2kg), exclude counterweight
Mount weight 27 lb (12.3kg)
Material All metal (except GPS cover)
Latitude adjustment range 0º ~ 70º
Azimuth adjustment range ± 8º
Right Ascension worm wheel Φ146mm, 288 tooth aluminum Declination worm wheel
Φ146mm, 288 teeth aluminum
PEC PPEC/Real time PEC
Counterweight shaft Φ28x 450 mm Stainless steel
Counterweight 20 lb (9.1 kg)
Mount base size Φ150 mm
Motor drive Stepper motor
Resolution 0.06 arc seconds
Slew speed 1×,2×,8×,16×,64×,128×,256×,512×,MAX(~3.75º/sec)
Power consumption 0.6A (Tracking), 1.1A (GOTO)
Power requirement 12V DC 2A
AC adapter The US power adapter is not INCLUDED, instead a 12v fuzed car lighter socket is included fo you to connect to your 12v power source.
Polar Scope AccuAligningTM dark field illuminated, 2 arc min
Level indicator, Level bubble
Dovetail saddle 8" Losmandy/Vixen dual saddle
Hand Controller GotoNova® 8407.
300,000+ objects database with star recognition
Meridian treatment Stop (0-15º pass), auto flip, continue
GPS Internal 32-channel GPS
Autoguide port ST-4
Communication port Serial Port
PC computer control Yes (ASCOM)
Cable management 4X USB, 2X DC12V (MAX 5A), 6P6C
Operation temperature -20ºC ~ +45ºC
Tripod Optional 2-inch stainless steel tripod (8kg) or Pier (10kg)
Warranty Two year limited

Avalon Instruments M-ZeroEquatorial-Altazimuth Single-Arm mount with Fast-Reverse technology

The new M-Zero single-arm mount by Avalon Instruments has been designed to revolutionize the world of portable astronomy with both the style and function that Avalon Instruments is known for.

Made entirely from anodized aluminum with stainless steel hardware, the low weight and high quality of this mount make it the ideal companion for travelling observers and astro-photographers.

The great versatility and compact size combined with Avalon’s unmistakable style, allows M-Zero to get you to a level where competition stops.

M-Zero is four mounts in one: Standard Equatorial but with no meridian  flip, Altazimuth
for astronomical use & a time-lapse platform for
panoramic pictures, all with only 10 kg of total weight (including the brand new T-Pod 90) and 8 kg loading capacity.

The brand new StarGo GoTo-System features several exclusive functions, the innovative Fast-Reverse
technology (belt drive system) and the top-quality
construction allows high level performance and auto-guided long-exposure astrophotography without time limits – even with telescopes with focal length up to 2m, (8" SCT & 8" RC).

The Avalon StarGo GoTo-System has been totally designed and manufactured by Avalon to meet all needs, from the beginner to the professional photographer.

In Equatorial mode the M-Zero does a
meridian flip and relatively long
tubes can be used as well.

It can also quickly be set in Altazimuth
mode for observation with large telescopes and binoculars or to acquire automatic time-lapse sequences.

More exclusive functions will be available with
StarGo firmware updates that can easily be updated by PC.

**Includes Softcase for both M-Zero and T60 Tripod.**

Technical Specs:

M-ZERO FEATURES SUMMARY:
• Single-Arm Equatorial & Altazimuth
• Fast-Reverse technology (belt drive system)
• No backlash and no maintenance
• Total mount weight 5,5 kg
• Max. load capacity for photographic use: 8 kg
• Max. load capacity for visual use: 10 kg
• Hand control for manual use
• Bluetooth connection from smartphones and tablets
• Virtual hand control from smartphones and tablets
• PC control ASCOM compatible
• Autoguide port ST4
• Baader Steedrive port
• Time-lapse control port for DSLR camers
• Two Aux ports for motors and Filterwheels
• 12V DC power supply 0,5A

10 Micron GM1000 HPS High Precision Mounting

** Please Note as at 5 February 2013**

10 Micron have imposed a price increase. In addition the falling currency rates mean that a significant retail price increase will be imposed as soon as we have sold through the remaining small batch of mounts we have on order.

***************************************************

10 Micron are one the highest regarded manufacturers of high precision ultra high quality mountings in the business.

We would like to introduce the new GM1000 HPS equatorial mounting. This mount slots in perfectly in terms of price and load bearing capacity between lower quality mass produced mounts and similar quality but more expensive and larger mounts such as the Paramount MX.

The GM1000 HPS features:

Absolute on-axis encoders in RA & Dec, featuring
more than 10 million increments (interpolated),
fully encapsulated and calibrated

•Provides up to 0.5“ RMS tracking accuracy - for long duration UNGUIDED imaging - even at long focal lengths

• Closed loop (encoder controlled) satellite
tracking

• speed - up to 20°/s

• Extremely low power consumption and miniature
format (20 x 15 x 8cm) electronics

• After an observing session, the entire
electronics Box (motor electronics with Linux computer) and HC can be easily detached and protected from premature aging and moisture
damage

• Service friendly design - electronics box and HC
can be easily exchanged for service, without returning the precisely adjusted HPS mount

• Automatic refraction correction function implemented –
the only way for perfect unguided tracking during long
exposures

• Intuitively operated V2 software and QSI motor control system, integrated into an onboard Linux computer – intelligence built-in

• No external PC or laptop mandatory in the fi eld – all functions in the onboard computer can be
accessed via stand-alone hand control unit (HC)

• Precise multistar pointing models, entering satellite
and comet trajectories, programming individual observing sessions and much more

• Well documented fi rmware and drivers, working
autonomously w/o additional planetarium software, without need for external RS-232 converters / USB ports

• Excellent documentation in English and German

• Electronic balance - requiring one time balancing only

• Ultra stable pointing models for safe East/West load reversal – no change of pointing model necessary when changing accessories

• Precise polar alignment – software aided and accomplished within minutes

• Fully remote controlled via your observatory PC with 10/100 LAN included, perfectly prepared for your future Internet observatory

• Remote diagnostics assist option via Internet

The GM1000 HPS has a max load bearing capacity of 55 to 60 lbs and is both portable and easily manageable in the field.

Tests with 3600 second long unguided exposures have show tracking accuracy within +/- 0.5 arc seconds.

Technical Specs:

DRIVE MECHANICS
• Self-locking, high-precision worm-wheeldrives
with classic friction clutches
• Internal wiring – no external mount cables
(GM 1000 HPS)
• High torque Servo DC motors eliminate
imbalance motor stall
• GM 1000 HPS with ultra portable on-axis encoder
mount for uncompromizing stand-alone field use
DRIVE ELECTRONICS
• Ultra-high-precision RA & Dec on axis encoders, featuring morethan 10 million increments (interpolated), fully encapsulated and calibrated
• Up to 0.5“ RMS tracking accuracy - for long duration unguided imaging
• Closed loop (encoder controlled) satellite tracking speed - up to 20°/s
• Extremely low power consumption and miniature format (20 x 15 x 8cm) electronics
• After an observing session, the entire electronics box (motor electronics with Linux computer) and HC can be easily detached and protected from premature aging and moisture damage
• Service friendly design - electronics box and HC can be easily exchanged for service, without returning the precisely adjusted HPS mount
NGC 891.400 s unguided exposure with GM 2000
HPS 0.7 arcsecond/pixel scale

FIRMWARE
• Automatic refraction correction function implemented –
the only way for perfect unguided tracking during
long exposures
• Intuitively operated V2.7 software and QSI motor
control system, integrated into an onboard Linux
computer – intelligence built-in
• No external PC or laptop mandatory in the field –
all functions in the onboard computer can be
accessed via stand-alone hand control unit (HC)
• Precise multistar pointing models, entering satellite and comet trajectories, programming individual observing sessions and much more
• Well documented firmware and drivers, working
autonomously w/o additional planetarium software,
without need for external RS-232 converters /
USB ports
• Excellent documentation in English and German
• Electronic balance - requiring one time balancing only
• Ultra stable pointing model for safe East/West load reversal – no change of pointing model necessary when changing accessories
• Precise polar alignment – software aided and accomplished within minutes
• Fully remote controlled via your observatory PC
with 10/100 LAN included, perfectly prepared for your future robotic observatory.

Avalon Instruments M-Uno Fast Reverse Single Fork Arm Equatorial Mount

The M-Uno is an exciting and innovative new mount for high precision astro photography.

It is made in Italy by DAL SASSO Srl, a company with more than 30 years of experience in the field of high precision mechanics and marketed with the AVALON INSTRUMENTS trademark.

Click here to see recent APOD taken on M-Uno Mount

The M-Uno design has abandoned the traditional worm and gear arrangement in favour of a new transmission system based on pulleys and tooth belts, for both right ascension and declination.

This belt driven design produces various benefits over the traditional geared designs including

Very consistent motion, without play and the sudden peaks associated with traditional mounts, these are factors that are of particular importance for long exposure deep sky astro imaging.

Traditional mounts always suffer from backlash to a greater or lesser extent particularly in the declination axis The Linear Belt driven transmission system can now quickly reverse the Declination motion, without any backlash
This is the reason for the name: FAST REVERSE.

It is wortwhile stressing that, since the motion transmission in traditional gear-worm systems have just one contact point, any error on each of the two components will, sooner or later, result in tracking errors.

However, with the pulley-tooth belt system, no direct contact occurs and the motion is transmitted by the belt working with some 50% to 90% of the girth surface. Consequently, any errors are balanced among the cogs, and are lower in amplitude with respect to the geared ones

We have been testing the mount and have found even with very long focal length telescopes by adopting a low guide rate of 0.125x sidereal the M-Uno mount delivery pinpoint round stars over long exposures.

The single fork arm also means that there are no meridian flip issues as is the case with German Equatorial mounts and thus the mount will track a target from East through the Meridan into the West uninterrupted.

Another advantage of the single fork arm design is the absence of a long counterweight shaft. In an observatory in particular this frees up a significant amount of room.

No wear, No Friction.

No wearing effects will occur since no friction occurs amongst the various parts. In fact, the pulleys and the axes rotate on roller bearings, 13 for the right ascension, 12 for the declination.
The tooth belts are the same as used in car engines (with steel core), which are designed to work for 100.000 Km at an average speed of 2000 rpm, facing a 0-100°C thermal range in a few minutes. Compared to that, the stress supported by the belts working on these mounts is extremely low guaranteeing almost eternal life !

The mount as standard comes equipped with a Pier Top Adaptor and the Skywatcher Synscan Goto Controller.

The Synscan offers a simple and reliable goto performance that can be cobtrolled independently via the hand set or via a PC running popular Planetarium software via the included PC Connection cable.

In addition a EQDir adaptor is included with the mount which can be run via the EQMod suite of software.

In addition comes equipped with Pole Finder Telescope and Losmandy compatible Saddle Plate

Our early tests have left us very impressed with the M-Uno mount.

Technical Specs:

The LINEAR mount is specifically designed for astroimagers, with some important features including

- Excellent performances in guided imaging, even with high focal lengths, up to 3 metres
- Simple and original design
- Really portable and lightweight, with its useful handle and a weight of only 12.5 kg, without counterweight and bar
- Payload capacity up to 20 kg in imaging (best choice 15-18 kg)
- High quality manufacturing, all parts are designed for long lasting use, made of anodized aluminium and stainless steel, directly milled obtained from single blocks thanks to high precision 5 axes CNC machines.
- Reliable and consistent performance

- Easily suitable to the main commercial tripods, such as Baader AHT, Skywatcher EQ6 Tripod, Geoptik and several others.

Avalon T110 Tripod

The new metal tripods by Avalon Instruments have been designed to revolutionize the world of portable astronomy with both the style and function that Avalon Instruments is known for. Made entirely from anodized aluminum with stainless steel hardware, the low weight and high stability of these tripods make them the ideal companion for travelling observers and astrophotographers.

The T-110 tripod has a 220 pound (100 Kg) capacity. Even with these substantial capacities, The T-110 weighs only 6.5 and collapses to just 30 inches (75 cm) while extending to a maximum height of 51 inches (130 cm).

The built-in spreader system allows the tripod to be quickly and easily opened with no loose parts while the double leg locks and included bubble level make it easy to level the tripod and securely lock it in place. The base of the legs can be fitted with ground spikes for soft ground or rubber tips for hard surfaces. In addition, the tripods are equipped with a convenient handle for easy transport.

While conceived for the Avalon M-Uno, Linear and upcoming M-Zero mounts, the T110 model is also compatible with other mounts including the SkyWatcher/Orion EQ6/Atlas and AZEQ6/Atlas Pro AZEQ-G, Celestron CGEM, Losmandy G11, Takahashi EM200, Vixen SXV/SXD/SXP/SXD2 and other mounts while the M-90 will be compatible with mounts including the SkyWatcher/Orion EQ-5/HEQ5/Sirius, Celestron CG-5/AVX, Takahashi EM10, Vixen GP/GPD2 and others.

Compatibility will be either native or through the use of an available adapter.

£849.00

Ioptron ZEQ25 Equatorial Mounting

The ZEQ25GT is a new equatorial mount product from iOptron designed for imaging and visual observing, it sits between the IEQ30 and the SmartEQ PRO in carrying capacity and size, with a unique and innovative design.

The ZEQ25GT offers one of the most sophisticated electronic/mechanical packages on the market today in a smaller sized equatorial mount, with all the features you need to start imaging in the field quickly and easily.

The new iOptron "Z" design mount puts the weight of the payload at the center of gravity allowing for greater natural stability. Given its payload capacity, this means the "Z" designed mount is unusually light-a nice benefit when setting up at a remote site. Other features include an adjustable counterweight bar to prevent obstruction with the tripod. And polar aligning is quick and accessible all the time since the polar scope is not blocked by the declination shaft this design is known as the CEM or Chinese Equatorial Mount.

The ZEQ25GT is equipped with the most advanced GOTONOVA® GOTO technology, making it one of the most powerful and accurate GOTO mounts available. Its database includes over 59,000 objects-its Go2Nova® Hand Controller is intuitive to use and its large 4-line LCD screen simplifies the process of setting telescopes and locating objects. The ZEQ25 - a new category of viewing and astrophotography.

The new iOptron "Z" design mount puts the weight of the payload at the center of gravity allowing for greater natural stability. Given its payload capacity, this means the "Z" designed mount is unusually light-a nice benefit when setting up at a remote site. Other features include an adjustable counterweight bar to prevent obstruction with the tripod. And polar aligning is quick and accessible all the time since the polar scope is not blocked by the declination shaft this design is known as the CEM or Chinese Equatorial Mount.

The ZEQ25GT is equipped with the most advanced GOTONOVA® GOTO technology, making it one of the most powerful and accurate GOTO mounts available. Its database includes over 59,000 objects-its Go2Nova® Hand Controller is intuitive to use and its large 4-line LCD screen simplifies the process of setting telescopes and locating objects. The ZEQ25 - a new category of viewing and astrophotography.

ZEQ25 Features:

A new design "balanced" equatorial mount for maximum payload and minimum mount weight
Specialized astrophotography mount ideal for entry-level and intermediate Astro-photographers
Payload of 27 lbs (12.3 kg) with the mount-only weight of 10.4 lbs (4.7 kg)
Spring loaded gear system with customer adjustable loading force
Gear switches on both R.A. and DEC axes for easy balancing when disengaged
Adjustable counterweight shaft for 0º latitude operation
Dual-axis servomotor with enhanced optical encoder for precise GOTO and accurate tracking
iOptron AccuAligningTM calibrated polar scope with dark-field illumination and easy polar alignment procedure, allowing for fast and accurate polar alignment
Polar alignment routine for those who can't see the Pole Star
Go2Nova® 8408 controller with Advanced GOTONOVA® GOTO Technology
Periodic error correction (PEC)
Integrated ST-4 autoguiding port
Built-in 32-channel Global Positioning System (GPS)
Serial port for firmware upgrade and computer control
Spring loaded Vixen-style saddle
Standard 1.5 inch heavy-duty stainless steel tripod (5kg), optional 2 inch tripod (8kg)
Die-cast metal tripod spreader with accessory tray
Optional PowerWeightTM rechargeable battery pack

Technical Specs:

Mount: "Z Balanced" Equatorial Mount
Payload: 27 lb (12.3kg), exclude counterweight
Mount weight: 10.4 lb (4.7kg)
Payload/Mount weight: 2.60
Right Ascension worm wheel: Φ88mm, 144 teeth aluminum
Declination worm wheel: Φ88mm, 144 teeth aluminum
Right Ascension axis shaft: Φ35mm steel
Declination axis shaft: Φ35mm steel
Right Ascension bearing: Φ55mm ball bearing
Declination bearing: Φ55mm ball bearing
Worm gears: Brass
Motor drive: Planetary Gear Reducer DC servo with encoder
Resolution: 0.14 arc seconds
Transmission: Synchronous belt/Gear
Latitude adjustment range: 0º ~ 60º
Azimuth adjustment range: ± 10º
GPS: Internal 32-channel GPS

Polar Scope
AccuAligningTM dark field illuminated
Level indicator
Level bubble
Hand Controller: Go2Nova® 8408 with 59,000 objects database
PEC: PEC
Tracking: Automatic
Speed: 1×,2×,8×,16×,64×,128×,256×,512×,MAX(~4.5º/sec)
Counterweight shaft: Φ20mm x 300mm (0.7 kg)
Counterweight: 10.4 lb (4.7kg)
Tripod:1.5" Stainless Steel(5kg), optional 2"(8kg)
Dovetail saddle: Spring loaded Vixen-style
Power consumption: 0.25A(Tracking), 0.75A(GOTO)
Power requirement: 12V DC(9 ~ 15V), 1.5Amp
AC adapter: 100V ~ 240V (included)
Serial port: Yes (on hand controller)
Autoguide port: Yes
Firmware upgrade: Yes
PC computer control: Yes (ASCOM)
Operation temperature: -10ºC ~ 40ºC
Warranty: Two year limited

Skywatcher EQ8 Pro Equatorial Mount

The Sky-Watcher EQ8 is an exciting new extra heavy-duty, observatory class German equatorial mount, with a payload capacity of up to 50kg.

Quiet in operation, the EQ8 is supplied with the Synscan Go-To handset and can automatically find and track over 42,900 celestial objects from its extensive computer database.

Click here to see IKI Pier Top Adaptor for EQ8

Click here to see replacement Altitude Adjuster for EQ8

Available either complete with pier tripod or as the mount head only, to install onto a static pier. Two 10kg counterweights and the Synscan handset are supplied with both options.

Freedom-Find™ Technology
A great feature of the EQ8 is the patented dual-encoder technology. Auxiliary encoders are located on both the R.A. and DEC. axes. This allows the telescope to be moved manually, by releasing the clutches, or electronically in either axis without the mount losing its alignment or positional information. After moving to a new object, the mount will continue to track it accurately. This gives the user enormous freedom, convenience and flexibility during observational sessions.

Permanent Periodic Error Correction (PPEC)
The EQ8 is equipped with an index on its R.A. worm. After a proper PEC training routine, in which the training data is stored in the motor controller permanently, the user can start the PEC training at any time to improve its tracking performance for short focal length astrophotography. A training process is not required in the next observing session, assuming the polar alignment is always accurate, thus this is a permanent periodic error correction (PPEC), and the user can train the mount for manual guiding or auto-guiding.

Auto-Home Function
The EQ8 is equipped with two home position sensors. Working with the Synscan hand controller, the mount can be placed to the same home position after turning on the power.

Batch Exposure Function
The EQ8 is equipped with a SNAP port which can control the shutter release of a camera. Working with the Synscan handset’s ‘Camera Control’ function, a user can take batch exposures when doing astrophotography. Up to 8 groups of ‘exposure times & frame’ combinations can be set on the Synscan handset.

Technical Specs:

Payload Capacity (excl. counterweights): 50kg
Latitude Adjustment Range: 10° to 65°
Azimuth Adjustment Range: +/- 10°
Mount Head Weight (excl. tripod): 25kg
Pier Tripod (optional): 29.4kg
Counterweights: 2 x 10kg
Counterweight Rod: 2.6kg
Power Requirement: 11 to 16 Volts DC, 4A
Motors: 0.9° Hybrid Stepper Motor
Transmission: 435:1 Worm Drive + 64 Micro-Step/0.9° Stepper Motor
Resolution: 11136000 Counts/Rev, approx 0.12 Arc-Second
Maximum Slewing Speed: 3.3° per Second
Tracking Rates: Sidereal, Solar and Lunar Rates
Auto-Guiding Speeds: 0.125x, 0.25x, 0.5x, 0.75x & 1x
PEC: 100 Segments Permanent PEC
Polar Alignment: By software control or optional Polarscope
Hand Controller: Synscan
Object Database: 42,900+ Objects
Celestial Object Catalogue: Messier, NGC, IC, SAO, Caldwell, Double-Star, Variable Star, Named Star, Planets
Pointing Accuracy: Up to 5 arc-minutes (RMS)
Resolution of Auxiliary Encoders: 17624 Counts/Rev, approx 1.2 arc-minutes

Avalon Instruments Linear Fast Reverse Equatorial Mounting

The Linear Fast Reverse is an exciting and innovative new mount for high precision astro photography.

It is made in Italy by DAL SASSO Srl, a company with more than 30 years of experience in the field of high precision mechanics and marketed with the AVALON INSTRUMENTS trademark.

The Linear mount design has abandoned the traditional worm and gear arrangement in favour of a new transmission system based on pulleys and tooth belts, for both right ascension and declination.

This belt driven design produces various benefits over the traditional geared designs including

Very consistent motion, without play and the sudden peaks associated with traditional mounts, these are factors that are of particular importance for long exposure deep sky astro imaging.

Traditional mounts always suffer from backlash to a greater or lesser extent particularly in the declination axis The Linear Belt driven transmission system can now quickly reverse the Declination motion, without any backlash
This is the reason for the name: FAST REVERSE.

It is wortwhile stressing that, since the motion transmission in traditional gear-worm systems have just one contact point, any error on each of the two components will, sooner or later, result in tracking errors.

However, with the pulley-tooth belt system, no direct contact occurs and the motion is transmitted by the belt working with some 50% to 90% of the girth surface. Consequently, any errors are balanced among the cogs, and are lower in amplitude with respect to the geared ones.

No wear, No Friction.

No wearing effects will occur since no friction occurs amongst the various parts. In fact, the pulleys and the axes rotate on roller bearings, 13 for the right ascension, 12 for the declination.
The tooth belts are the same as used in car engines (with steel core), which are designed to work for 100.000 Km at an average speed of 2000 rpm, facing a 0-100°C thermal range in a few minutes. Compared to that, the stress supported by the belts working on these mounts is extremely low guaranteeing almost eternal life !

The Linear Fast Reverse is a German Equatorial mount design with a load bearing capacity of up to 20kg for astro imaging. It is perfect for telescopes such as the popular Celestron and Meade SCT,ACF and Edge HD designs up to 11" of aperture. It is also a very good choice for up to 6" refractors and 10" Ritchey Chretien designs including our own IKHAROS RC10 CFT Truss Tube telescope.

The mount has bveen extensively tested with up to 3m focal length instruments and has proven to give reliable pin point tracking over very long sub exposure lengths.

The mount as standard comes equipped with a Pier Top Adaptor and the Skywatcher Synscan Goto Controller.

The Synscan offers a simple and reliable goto performance that can be controlled independently via the hand set or via a PC running popular Planetarium software via the included PC Connection cable.

In addition an EQDir adaptor is included with the mount which can be run via the EQMod suite of software.

In addition comes equipped with Pole Finder Telescope and Losmandy compatible Saddle Plate

The Linear Fast Reverse is a highly accurate and portable mount which can handle long focal length scopes easily in the field as well as in the observatory and provide the tracking precision necessary for round pinpoint stars even at the sampling rates of under 1 arc second per pixel typical with 2m or longer focal length telescopes.

AstroPhysics Mach1 GTO Mounting

There is much to admire in the Mach1GTO. It is beautifully machined, intelligently designed, precisely fabricated and assembled, and it has sophisticated electronics and servo drive controls.

But the bottom line is performance and results. In February 2007, Roland Christen posted results of a very cold imaging session to the the Yahoo ap-gto group. The mount performed beautifully, and the results posted there prove it.

Whether your Mach1GTO makes a permanent home in your observatory, explores your favorite observing sites or travels to the ends of the earth with you, it will allow you to optimize your observing sessions to the max.

Ideal instruments include: Astro-Physics and similar fast refractors up to our 160 mm f7.5 StarFire EDF, 8-11" SCTs, 6-8" Maks or any scopes of a similar size, up to 10" RCT

Versatility

Portable Enough for Airline Travel
Transport this rigid observing platform to your dream destination. The entire mount will fit into a single rugged case that will roll easily through airports or to your car. If needed, the R.A. and Dec. axes split easily into two pieces to fit into a more compact case.

Operate with 12V battery or Regulated Power Supply
You can take it to the darkest skies and power it with a commonly available 12V battery. In the observatory, we suggest a minimum 5-amp filtered, regulated power supply.

Image Past the Meridian
The mount will track and guide well past the meridian in either direction if the object is located such that the telescope will clear the pier. This allows the user to set up the mount for a long series of exposures without stopping in the middle to flip sides. One can start the telescope under the mount while pointing at an object in the eastern part of the sky and track it all the way deep into the western sky. This is very useful for long exposure H-alpha or in cases where a large number of individual exposures are needed for stacking.

Dennis di Cicco had this to say about the "powerful meridian delay feature" in his 2007 review:
". . . makes it easy to set up photographs that track across the meridian without interruption. It may sound like a small feature on paper, but I found it extremely useful in the field . . ."

Easy Alignment for Non-critical Observing

You can align the Mach1GTO using setup routines in the keypad, or with a polar alignment scope to quickly zero in on the pole for most non-critical observing or to get close before tweaking in for imaging (polar scope not included). We recommend either the PASILL4L or the prior PASILL4 or PASILL3 models since they can rotate in the axis. You can even align the mount during the day with our clever Daytime Polar Alignment Routine (outlined in the Keypad Manual) for solar observing, viewing the planets at twilight, or just getting a jump start on a long night.

Multiple Options for Controlling your Mount in the Field or Your Observatory

You have your choice of the GTO Keypad (included), which is a full-featured handheld computer, PC computers using a wide variety of software with or without our ASCOM driver, Mac computers or even your mobile smart device (like your iPhone or iPad). The Astro-Physics command language is available to those who need to write their own software. GTO control options are discussed in detail at this link.

Mechanical Features

Precise Mechanical Fabrication

Using modern CNC machining techniques, AP make all components to a high precision level, which results in a final package that is solid and accurate in all respects. The critical angles are accurately machined so that the mount is orthogonal to a very high degree. This results in pointing accuracies well below 1 arc minute for a properly aligned mount.

Although the Mach1GTO is very light for its size and load rating, it has been machined out of solid aluminum to withstand the high axial and thrust loads that a medium-sized telescope places on the mount under real-world observing conditions. The mount is solidly built and will withstand gusting winds without excessive shake or vibration. We used high-quality machine tool bearings, rated in excess of 400 lb. static and dynamic load, on the main axis shafts. Both worm wheels turn smoothly with no runout throughout their 360 degree range.

Dennis di Cicco had this to say about the Mach1GTO's performance:

"The mount’s tracking and Go To pointing are among the most accurate I’ve ever tested. At the end of each night I’d park the scope and turn off the power. Whether an hour, day, or week elapsed until I’d power up the mount again and “resume from park,” it would have perfect sync with the sky — even to the point of “hiding” stars behind my finderscope’s crosshairs when I’d check the alignment by slewing to them in a bright twilight sky . . .

Such Go To pointing precision comes in handy when shooting photographic mosaics, making a sequence of deep exposures of the same field on multiple nights, or hunting difficult targets by eye."

GTO Servo Drive System

The drive system uses a high-quality Swiss DC servo motor controlled by a microprocessor to an accuracy of 0.05 arc-seconds per step. Tracking is very smooth, noticeably smoother than any stepper motor drive or inexpensive servo motor. The system can be accurately controlled over a speed range of 4800:1, which allows 0.25x sidereal for manual guiding to 1200x sidereal for 5 degree per second slewing. The circuit draws only 0.4 amps when tracking the stars, 2 amps with both motors slewing and requires only 12 volts to operate. The servo drive will satisfy the requirements of the sophisticated, advanced astrophotographer, yet is easy for the casual, visual observer to use.

Gear Accuracy and PE Performance

The heart of this mount is a precision gearbox using custom high-quality fine-pitch gears, coupled to a highly accurate worm and worm wheel. These parts are manufactured and assembled at our facility and individually tested to meet or exceed our periodic error specification of 7 arc seconds (+/- 3.5 arc sec.) before introducing any periodic error correction. The PE is smoothly variant with extremely low ripple or moment to moment error. In contrast, mounts that use integral gearboxes have very small spur gears with tiny teeth and too few of them. This generally causes ripples in the tracking rate which are difficult to guide out.

Each mount is rigorously tested on our specialized periodic error tester. Only mounts that provide an accuracy of 7 arc seconds or better will pass this inspection. If the mount exhibits greater error, the substandard part is identified, replaced and the mount is retested.

Pre-loaded PEMPro Curve

As mentioned above, the spec of 7 arc seconds (+/- 3.5 arc sec.) is the maximum native mechanical error inherent in the mount's RA axis WITHOUT any software correction. In order optimize performance even further, we use a special version of Ray Gralak's PEMPro (described below) developed specifically for our test equipment. We generate a unique PE curve for each mount that we program into each GTOCP3 Control Box. Simply use the Keypad or your Astro-Physics software (ASCOM V2 driver, PulseGuide or APCC) to turn the PE Correction "on" and you will see results significantly better than our published 7 arc second spec without additional PEMPro runs! However, you may use PEMPro to further refine your PE, if you chose to do so.

PEMPro (available from CCDWare) is a very powerful program that allows the user to characterize the periodic error to a high degree of accuracy and to reduce it dramatically for long unguided exposures. It is especially useful for this mount since the average worm rotation error is already quite low, and the short term ripple error is almost nonexistent. If you are a serious imager, you may wish to consider purchasing PEMPro, especially down the road as your worm gear runs in. Depending on usage, re-measuring error and re-loading periodic error correction from one to four times a year is a good practice, especially if you do some unguided images from time to time. Additional PEMPRo runs are not necessary for visual observers.

GTOCP3 Control Box

The GTOCP3 Control Box contains all of the circuitry to drive the two servo motors and the logic required to navigate the sky. It can be easily removed from the mount, if required. The Mach1GTO uses the same GTOCP3 Control Box (with the exception of the completely black-anodized exterior), as its big brothers - the 900GTO and 1200GTO mounts. In fact, the control boxes for all three mounts are interchangeable with one another in an emergency. Extensive information regarding the GTOCP3 can be found here.

GTO Keypad

The Keypad is a self-contained computer that allows you to control all essential telescope functions and includes an extensive database of objects. We have designed the interface and firmware to be as intuitive and easy to use as possible, while filling it with terrific features to make your observing session productive and pleasurable. Click here for detailed information regarding features and functions of the Keypad.

Please note there is a limited supply of Mach 1 GTO at this price.

Technical Specs:

Construction All CNC machined aluminum bar stock, stainless steel, brass; stainless steel fasteners
Finishing and Assembly Every part is hand-finished and inspected. All assembly is done by hand, by highly skilled mount assembly staff.
Worm wheel - R.A./Dec. 5.9" (150 mm), 225 tooth aluminum
Worm gear - R.A./Dec. Brass, 0.705" (17.9 mm) diameter
Axis shaft - R.A./Dec. 2.36" (60 mm) diameter
Shaft axis bearings - R.A./Dec. 3.1" (78 mm) diameter, 2 per axis
Latitude range 0 to 70 degrees with or without the polar scope attached, engraved scale
Azimuth adjustment Approximately 13 degrees (+/- 6.5 degrees from center)
Counterweight shaft 1.125" (29 mm) diameter x 14.5" (368 mm) long [13.625" (346.1 mm) useable length], incl. washer and safety knob.
Optional counterweight shaft (M1053-A) available: 1.875" (48 mm) diameter x 10.7" (272 mm) long; fits inside Dec. axis for transport.
Weight of mount Total: 32.1 lb. (14.6 kg)
R.A. axis/polar fork: 16.5 lb. (7.5 kg)
Dec. axis: 11.5 lb. (5.2 kg)
Counterweight shaft: 4.1 lb. (1.9 kg)
Capacity Approximately 45 lb. (20 kg) scope and accessories (not including counterweights), depending on length. Recommended for: Astro-Physics and similar fast refractors up to our 160 mm f7.5 Starfire EDF, 8-11" SCTs and 6-8" Maks.
These are only guidelines. Some telescopes are very long for their weight or heavy for their size and will require a larger mount. Remember also that imaging requirements are more rigid than visual observation.
Instrument mounting interface

Refer to list of suitable mounting plates below
Diameter of base 5.800" (147.32 mm) diameter

GTO Servo Drive System Specifications

Electronic components Rated for industrial and automotive applications
Motors Zero-cogging Swiss DC servo motors, enclosed in machined, aluminum housing
Motor encoder 2000 tic quadrature yielding an effective resolution of 0.050 arcseconds per tic
Motor reduction gear train 57.6:1 gear reduction through a custom built set of large diameter, fine-toothed, precision, spur gears for vastly superior performance
Servo Motor Control Box
GTOCP3 Control Box; black-anodized to match the mount
Included: machined aluminum Control Box Adapter and cloth Control Box Pouch;

Hand-held computer GTO Keypad to control all mount functions.Includes extensive databases and tour features in a simple, intuitive interface. Firmware updates via the internet
Power consumption ~ 0.3 to 0.5 amps at 13.8 volts - tracking
~ 1.0 to 2.2 amps at 13.8 volts - both motors slewing at 1200x
Power requirements Nominal 12 volt DC supply at minimum of 5 amps continuous
Periodic error
7 arc seconds peak-to-peak (+/- 3.5 arc seconds) or less in one worm cycle (6.4 minutes); native, prior to any error correction

Maximum slew speed 5 degrees / second

10 Micron GM 2000 HPS Mounting

The 10 Micron GM 2000 HPS is the bigger brother of the GM 1000 HPS mount and uses the same technology.

Boosted by a high-accuracy absolute encoders on each axis the GM2000HPS provides absolute positioning, thus eliminating the need for homing or zeroing procedures.
You will not lose your alignment by moving the mount by hand, releasing the clutches, even when the mount is unpowered, for example in
case of power outages.
This means ease of use when operating in the field, since the setup procedure is much faster. This means also additionalal security for remote
operation, since there is absolutely no way you can lose your alignment, even in case of slippage.

The absolute encoder provides also high-accuracy,
sub‑arcsecond tracking feedback, eliminating the need for autoguiding in the vast majority of applications.

The dual axis tracking function ensures correct tracking in case of polar misalignment, and is able to correct for atmospheric refraction.

The GM2000HPS is able to point and track artificial
satellites thanks to its slew speed of 20 °/s.

In Summary the GM 2000 HPS offers the following

The GM2000 HPS features:

Absolute on-axis encoders in RA & Dec, featuring
more than 10 million increments (interpolated),
fully encapsulated and calibrated

•Provides up to 0.6“ RMS tracking accuracy - for long duration UNGUIDED imaging - even at long focal lengths

• Closed loop (encoder controlled) satellite
tracking

• speed - up to 20°/s

• Extremely low power consumption and miniature
format (20 x 15 x 8cm) electronics

• After an observing session, the entire
electronics Box (motor electronics with Linux computer) and HC can be easily detached and protected from premature aging and moisture
damage

• Service friendly design - electronics box and HC
can be easily exchanged for service, without returning the precisely adjusted HPS mount

• Automatic refraction correction function implemented –
the only way for perfect unguided tracking during long
exposures

• Intuitively operated V2 software and QSI motor control system, integrated into an onboard Linux computer – intelligence built-in

• No external PC or laptop mandatory in the fi eld – all functions in the onboard computer can be
accessed via stand-alone hand control unit (HC)

• Precise multistar pointing models, entering satellite
and comet trajectories, programming individual observing sessions and much more

• Well documented fi rmware and drivers, working
autonomously w/o additional planetarium software, without need for external RS-232 converters / USB ports

• Excellent documentation in English and German

• Electronic balance - requiring one time balancing only

• Ultra stable pointing models for safe East/West load reversal – no change of pointing model necessary when changing accessories

• Precise polar alignment – software aided and accomplished within minutes

• Fully remote controlled via your observatory PC with 10/100 LAN included, perfectly prepared for your future Internet observatory

• Remote diagnostics assist option via Internet

The GM2000 HPS has a max load bearing capacity of 132 lbs and is both portable and easily manageable in the field.

Tests with 3600 second long unguided exposures have show tracking accuracy within +/- 0.5 arc seconds.

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