£169.00

Skywatcher Field Flattener for Esprit 120

An optically-matched M48-fitting doublet field flattener for Skywatcher's Esprit 120 ED PRO triplet refractor.

The M48 fitting provides a large clear aperture to reduce halation and a precision thread ensures the triplet and doublet lens groups are precisely aligned on the optical axis perpendicular to the image.

When used with the field flattener the Esprit-120 ED PRO's imaging circle is 44mm.

£699.00

Feathertouch 3" Focuser for Skywatcher Esprit 120

Starlight Instruments 3" FeatherTouch R&P Focuser for Sky-Watcher Esprit 120/150 Super ED APO Refractors.

This top quality rack and pinion focuser from Starlight Instruments USA is a direct upgrade to the standard focuser supplied with the Sky-Watcher Esprit-120 and Esprit-150 Super Apo Triplet Refractors. Designed to meet all the requirements of the most demanding astrophotographer. Exactly tailored for the focal length of the Esprit-120/150.

MODEL FTF3035B-A (Custom adapted by Starlight Instruments):
Feather Touch® 3.0" Diameter Dual Speed Focuser, 3.5" Draw tube travel, Resistance Brake, Integral TFPE Coupled Rotational Collar, and 2.0" Diameter Compression Ring, Custom coupling adaptor for Esprit-120/150 OTA’s, 3” M65 End Cap for Esprit Field Flatteners

Specification
Draw Tube Travel: 3.5"/88.90mm
Payload Capacity: up to 7kg
Draw Tube Thread: M75x1 Female Thread
Thread on OTA Entry Side of Draw Tube: M109X1 Male Thread
Focuser weight: 1.8kg (excl. adaptors) pounds
Draw Tube Drive Mechanism: Rack/Pinion
Reduction Ratio: 10:1
Finderscope shoe
Racked In from Mounting Face: 3.672"/93.27mm (excluding adaptor)
Racked Out from Mounting Face: 7.368"/187.15mm (excluding adaptor)

£15.00

HiTec Astro ST-4 Guide Cable

2m St-4 compatible Guide Cable

£699.00

Feathertouch 3" Focuser for Skywatcher Esprit 150

Starlight Instruments 3" FeatherTouch R&P Focuser for Sky-Watcher Esprit 120/150 Super ED APO Refractors.

This top quality rack and pinion focuser from Starlight Instruments USA is a direct upgrade to the standard focuser supplied with the Sky-Watcher Esprit-120 and Esprit-150 Super Apo Triplet Refractors. Designed to meet all the requirements of the most demanding astrophotographer. Exactly tailored for the focal length of the Esprit-120/150.

MODEL FTF3035B-A (Custom adapted by Starlight Instruments):
Feather Touch® 3.0" Diameter Dual Speed Focuser, 3.5" Draw tube travel, Resistance Brake, Integral TFPE Coupled Rotational Collar, and 2.0" Diameter Compression Ring, Custom coupling adaptor for Esprit-120/150 OTA’s, 3” M65 End Cap for Esprit Field Flatteners

Specification
Draw Tube Travel: 3.5"/88.90mm
Payload Capacity: up to 7kg
Draw Tube Thread: M75x1 Female Thread
Thread on OTA Entry Side of Draw Tube: M109X1 Male Thread
Focuser weight: 1.8kg (excl. adaptors) pounds
Draw Tube Drive Mechanism: Rack/Pinion
Reduction Ratio: 10:1
Finderscope shoe
Racked In from Mounting Face: 3.672"/93.27mm (excluding adaptor)
Racked Out from Mounting Face: 7.368"/187.15mm (excluding adaptor)

£199.00

Skywatcher Field Flattener for Esprit 150

An optically-matched M48-fitting doublet field flattener for Skywatcher's Esprit 150 ED PRO triplet refractor.

The M48 fitting provides a large clear aperture to reduce halation and a precision thread ensures the triplet and doublet lens groups are precisely aligned on the optical axis perpendicular to the image.

When used with the field flattener the Esprit-150 ED PRO's imaging circle is 44mm.

Notes

When fitting a DSLR camera you need only a M48 Ring to suit your Canon or Nikon camera. No additional spacers are required.
The spacing for dedicated CCD imaging cameras is 96mm from mating surface.
The rear thread is M48. When using T-threaded accessories you will need a FLO M48-T adapter.

£235.00

Altair Starwave 50mm Guide Scope & GPCAM Mono Guide Camera Kit

This kit enables you to autoguide with the extremely sensitive Altair GPCAM and the Starwave 50mm Guide Scope. It is small compact and light enough for travel to remote locations.

There are many autoguiding kits out there but nothing we know of with such a sensitive camera and such a high quality guide scope with all-metal mounting.

There are no plastic parts in this kit for good reason.

This combo includes two kits!

Kit 1: The Altair GPCAM Mono Guide Camera kit, which includes:
Altair GPCAM MT9M034M MONO Guide Camera with ST4 Port
Clear & UV IR Blocking Optical windows (switchable)
1.25" Nosepiece/Barrel with 1.25" Filter thread on front
5mm C-Lens adapter
ST4 Cable
USB Cable
The GPCAM Meteor LENS is not included but can be ordered separately.

NOTE: GPCAM Camera is compatible with Windows PCs only. Software and drivers are not included in the box and must be downloaded and installed before operating the camera from www.cameras.altairastro.com

Kit 2: The Starwave 50mm Guide Scope kit, which includes:
50mm F4 Optical Tube with 1.25" non-rotating Micro focuser
Adjustable rings
Finder Stalk
Unisversal Finder Scope Base Code: UNIFBR
50mm Optical tube focal length is 206.6mm (F4.1) which is perfect for autoguiding a small refractor.
The focuser has a 1.25" ID push-fit adapter with brass compression ring, allowing use of auto-guiding cameras or 1.25" eyepieces.
The indexed micro-focuser can be locked, enabling the eyepiece or camera to set at the correct focus-point.
Because the focuser does not rotate, the guide camera is easier to focus and maintain alignment on-target.
The rear of the focuser also includes a T2 thread to allow the addition of extensions.

The finder stalk is compatible with most finder scope brackets on the market, but also includes a universal finder bracket (product code UNIFBR), with a cross-slotted hole pattern to fit most telescopes.

Optional accessories:
Convert into a finder scope with the Altair 1.25" Illuminated Reticule Eyepiece (product code: 125-EP23-IR)

£169.00

Altair 60mm Guide Scope Kit Straight Thru with non-rotating helical focuser (no eyepiece or illuminator)

Altair 60mm Guide Scope with a 1.25" non-rotating Micro focuser, OTA, rings, stalk, and UNIFBR base.

Focal length is 225mm (F3.75) which is perfect for autoguiding.
The focuser has a 1.25" ID push-fit adapter with brass compression ring, allowing use of auto-guiding cameras or 1.25" eyepieces.
The indexed micro-focuser can be locked, enabling the eyepiece or camera to set at the correct focus-point.
Because the focuser does not rotate, the guide camera is easier to focus and maintain alignment on-target.
The rear of the focuser also includes a T2 thread to allow the addition of extensions.

The finder stalk is compatible with most finder scope brackets on the market, but also includes a universal finder bracket (product code UNIFBR), with a cross-slotted hole pattern to fit most telescopes.

To attach the finder scope to dovetail bars, simply remove the stalk by means of the two set screws.

£2,015.00

Optec Pyxis 3 Inch Rotator

The Pyxis 3-inch has a full 3 inches of clear aperture and is designed to hold large instrument packages without flexure or wobble. A 6-inch bronze worm gear and stainless worm rotate the center tube with a resolution of 0.01875 degree per step from the stepper motor. The operating software is very similar to the smaller Pyxis so that existing third party software is compatible. De-rotation of the field for long exposure images with alt-azimuth mounted telescope and rotation of the guide chip for SBIG camera to a suitable bright guide star are the two primary uses of this instrument. Power requirements and other operating conditions are similar to the 2-inch Pyxis model.

This model is large and heavy and is intended for larger telescopes on observatory caliber mountings. The 2.4-inch thickness warrants telescopes that can accommodate this increase in the back-focus distance. It uses the same telescope mounts and camera side adapters as the TCF-S3 - Optec's new 3-inch temperature compensating focuser. Any telescope mount or camera side adapter has to be ordered separately.

Cross-sectional view of the Pyxis 3-inch. Click here for a pdf version.
Like the 2-inch Pyxis model, the unit can only be controlled by a PC computer running the Optec PYXIS.exe control software or third party compatible software. Manual control is not possible. A flat wire serial cable is available for connection to a standard RS-232 interface COM port at 19.2K baud. Standard lengths and custom lengths up to 100 feet are possible. Cables and COM port adapters need to be ordered separately. A 15 VDC regulated power supply is included with a right angle 2.5 mm power jack. Stepping up to 15 volts DC provides about 20% more torque without sacrificing speed. Contact Optec to upgrade to the 15 VDC right angle power supply for your existing Pyxis 3-inch.

£126.00

Baader Guidescope Rings - for Tube Diameters 110mm to 160mm

Baader guide scope rings provide solid and accurate alignment with ultimate stability.

They include ball bearing fitted contact pads.

For tube diameters from 110mm to 160mm

The mounting stability of a guide scope is critical for successful autoguiding.

Many precisely tracked exposures are ruined due to differential flexure.

The Baader guide scope rings offer optimum stability of the guide scope.

-- precisely machined rings made of hard aluminum
-- four milled flat parts with different connections ( metric and imperial photo thread )
-- generous width of 28mm
-- oversized adjustment screws - M10 made of V2A steel
-- contact surfaces rotate on ball bearings and they are coated with hard rubber to assure a secure grip of the tube
-- no scratching of the guide scope tube
-- the knurled knobs are oversized to assure effortless operation even with gloves

Included

Set of 2 rings

Rings accept tubes with diameters between 110mm and 160mm

3 adjustment screws per ring

£998.00

Optec Pyxis 2" Rotator

The Pyxis camera rotator was especially designed with the guiding chip of the SBIG ST-x CCD cameras in mind. Simply locate a suitable guide star, enter the position angle and let the Pyxis rotate the camera so that a bright guide star is centered on the tracking chip. For those with alt-azimuth mounts, the Pyxis can de-rotate the field while tracking an object. A simple Windows interface program is provided which provides both position angle rotation and de-rotation control modes. The control software is free and updates are also free.

Utilizing a precision sealed 50mm bearing, the Pyxis provides the rigidity and stability you have come to expect from Optec instruments. Weighing under 2 lbs the Pyxis can support and rotate the SBIG ST line of cameras without slipping. If the holding torque of 27 inch-pounds (3 Nm) is exceeded, the drive gear will slip but no damage to the Pyxis will occur. The running torque is 9 inch-pounds (about 1.0 Nm). This limit to the holding and running torque will also prevent damage to cables and instruments if a rotational stoppage does occur. The Pyxis can handle the SBIG AO-7 adaptive optic with camera. The clear aperture of the Pyxis is 1.65 inches and adds about 1.6 inches to the back-focus. For large instrument packages or systems that use the SBIG STL camera with large CCD, the new Pyxis 3-inch model is suggested.

Intelligent firmware will choose the best direction for each move to keep camera cables from binding. The built-in circuit board provides all the control needed - no external hand control box is required. Windows control software is provided with the Pyxis and software integrators will appreciate the simple command language allowing them to easily select a new position angle or activate the derotation control for alt-azimuth tracking.

The Pyxis was designed for use with the Optec TCF-S Focuser and IFW Filter Wheel. Fully compatible with the Optec NextGen MAXfield and NextGen WideField telecompressors the Pyxis can be used at 1X, 0.5X, and 0.33X using any SBIG camera. However, the NextGen telecompressors used with the Pyxis are not compatible with the SBIG cameras having an attached CFW-8/9/10 filter wheel. In this case the back-focus distance for the NextGEN reducer is exceeded.

New Firmware And Circuit Board Available

New firmware is available for the Pyxis 2-inch and 3-inch models. It was suggested that the unit have the ability to adjust the HOME or 0 position angle by software means instead of physically rotating the unit. Seeing the wisdom of this, the firmware has been modified to allow the user to set 0 PA within +/- 15 degrees of the default position. Cost is $25.00. New control software version 1.30 must be downloaded to make use of this new command. This firmware is only compatible with Rev. 1 circuit boards for the Pyxis 2-inch. Earlier models require a circuit board replacement.

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