Officina Stellare RiDK305 Ultimate Astrograph

Almost everyone knows about the high level of innovation and technology that comes with any OS product, it's clear at first sight.

Many know that OS have introduced new optical designs for todays demanding marketplace amongst both amateur astro imagers and professionals.

A key part of OS philosophy is, trying to be "smart" and one step ahead.

So: they did it again!

Many of OS customers are asking why they don't have a Dall-Kirkham or a CDK telescope in our arsenal of products, well that's because of their way of thinking.

Many other manufacturers just take one classical optical scheme and add some sort of corrector to it, just to have a flatter field and/
or a better spot size, OS always try to make things better.

The RiDK 305 (Riccardi Dall-Kirkham) represents the new reference point for all modified Dall-Kirkham instruments available on the market.

The unique experience and creativity of Massimo Riccardi, Chief Optical Designer at Officina Stellare, gives birth to a new 305 mm diameter astrograph of superior performance and image quality.

Click hereto see sample Image

The results are simply amazing: a system delivering more than a 60mm large corrected and flat field that is over the entire field diffraction limited.
And, more than this, over a spectral range from 380nm to 2000 nm!

These outstanding optics are mounted inside the
state of the art OS-Truss mechanics used in all the OS open tube architecture telescopes. The same mechanics approved and used from worldwide research institutes for professional studies.

The RiDK 305 is 100% Made in Italy. Optics are made in Occhiobello Plant under the strict quality control of Massimo Riccardi.

The mechanics, designed by our R&D Manager, Giovanni Dal Lago, are engineered,
manufactured and assembled at the Thiene plant.

The RiDK 305 is the ultimate astroimaging telescope for whoever desires just the best in imaging all of the deep sky wonders in a beautiful, compact and superbly manufactured instrument.

The long back focus allows any type of accessories
to mounted, including cameras and rotators. It's the telescope for anybody who believes that imaging the Universe is one of the most important, serious and fullfilling experience for all night sky lovers and for for those who believe that image perfection is the minimum to which to aspire.

Massimo Riccardi, Chief Optical Designer at Officina Stellare, has the unique experience and creativity required to imagine and build a 305mm astrograph of superior performance and resulting image quality. The RiDK 305 is a system that delivers a 63mm fully corrected, flat field and an imaging performance that is diffraction limited across the entire field over a wide spectral range (380nm to 2000nm). These outstanding optics are mounted inside a state-of-the art Officina Stellare open truss tube made of zero expansion carbon fiber; the same high quality optical tube assembly used in all Officina Stellare open truss-style telescopes the world over.

The Officina Stellare RiDK 305 is manufactured from start to finish in Italy. The optics are made in the Occhiobello Plant under the strict quality control of Massimo Riccardi, Officina's own optical designer. The mechanics of the telescope were designed by Giovanni Dal Lago, and are engineered, manufactured and assembled at the Thiene plant.

Technical Specs:

echnical Specification:
Model RiDK 300
* Type: Riccardi Dall-Kirkham
* Clear Aperture: Ĝ 305 mm (12")
* OTA assembly type: Open carbon truss
* Focal length 2400 mm (95")
* F / ratio: f/7.9
* Weight: 27 Kg (60 lbs)
* Overall OTA length: 910 mm
* Overall OTA Diameter: 490 mm
* Spot size (@31.5 mm from axis) Inside the airy disk! (0.9 to 3microns from 380nm to 2000nm)
* Zero expansion carbon truss tube design, splitted light baffle, four Losmandy
type dovetails, three ventilation fans and mirrors heaters with manual control, shroud and cap covers.
* Diffraction limited performance over a 63 mm Imaging Field Circle Diameter - Fully Flat field from 380nm to 2000 nm.

£298.00

Veloce RH200 tube Rings

Deluxe rings pair for the Veloce RH 200.
Quick lock.
Two flat sides with threaded holes for plates

Officina Stellare "Falco" Guider and Finder

The Falco is an 80mm dual guidescope and finderscope.

It features a high quality 80mm Doublet with a focal length of 310mm.

Mechanical quality and finish is typical Officina Stellare quality.

The Falco is provided with a 1.25" Micrometric focuser and is ideal as a finder/Guider for the Veloce RH200.

Officina Stellare Ultra CRC Ritchey Chretien (Ultra Corrected) (Currently on Special Offer)

The Officina Stellare Ultra CRC 300 ST telescope is a premier design. An ultra corrected Ritchey Chrètien telescope that features a unique and innovative primary cell design that includes a three fan ventilation system. Its beautiful zero expansion carbon fiber open truss tube body is trimmed with CNC aluminum fittings.

Each telescope is offered with it's own interferometry report stating and certifying the overall quality to the customer. In the making of the optics, Officina Stellare only use blanks of certified origin and perfect homogeneity. They offer, as a standard, very high reflectivity protected aluminizings and multi layer anti reflex coatings.

There is an in house, pneumatically insulated, 6 meters long and 500 Kg weight optical bench using a Zygo mark IV interferometer with phase shifter coupled with a highly sophisticated analysis software for producing extremely precise measurements and tests. Officina Stellare verifies each and every one of their instruments before delivery to the final user.

The materials Officinia Stellare uses in their premium quality telescopes are mostly aluminum and carbon fiber because of their lightness, their mechanical and thermal properties and for the optimal resistance to environmental conditions.

All the mechanical parts for the the OTA are machined using CNC computer assisted machines and from a whole block of aluminum to guarantee the best possible precision. Also the carbon fiber components are produced following strict specification and tolerances. Each part has been computer designed and optimized for the best structural performance, rigidity and lightness. The holding systems for both mirrors, the spider, rings and all the structural components, even the smallest, are CNC machined from a single block of special aluminum (6061/7075, Ergal and Anticorodal), stainless steel, titanium and brass. The tubes are made of true carbon-graphite fiber obtained with the use of high vacuum process, allowing us to obtain the best stability of the focus vs temperature changes still maintaining the best structural rigidity and lightness.

Great care is taken in the making of the rear holding cell of the primary mirror. The entire rear cell for the primary mirror is figured to have the best rigidity/weight ratio and for the fastest possible thermal stabilization between the environment and mirror. The convection and thermal irradiation are greatly improved with the use of three high quality axial fans in the back of the cell.

Great attention has been applied to simplify the collimation between the mirrors resulting in a stable, efficient but easy to use system.

Technical Specs:

OFFICINA STELLARE ULTRA CRC 300
Model: Ultra CRC 300 ST
Type: Ultra Corrected Ritchey Chretien
Clear diameter: 312 mm
OTA assembly type: Carbon open truss tube / CNC aluminium
Focal lenth: 1680 mm
F / ratio: F/5.4
Optical set glass: Sitall
Interferometric report: Yes
Weight: 25 KG
Overall OTA length: 720 mm
Overall OTA diameter: 420 mm
Spot size (@26 mm from axis, w/flattener): 5 microns

Veloce RH

The Officina Stellare Veloce RH 200 - Riccardi-Honders Astrograph is a premier, innovative, Officina Stellare exclusive!

The primary Mangin mirror optical design features a large front full aperture corrector lens and near zero expansion BK7 optical glass for the primary and secondary mirror. It has two spaced elements for the rear group. The aperture is 200mm (8") and provides an incredible ultra fast, wide field with an F/3 focal ratio and 600mm focal length.

Add to that a flat 60 mm diameter field, with 6 micron maximum star spot size.

The materials Officinia Stellare uses in their premium quality telescopes are mostly aluminum and carbon fiber because of their lightness, their mechanical and thermal properties and for the optimal resistance to environmental conditions.

All the mechanical parts for the the OTA are machined using CNC computer assisted machines and from a whole block of aluminum to guarantee the best possible precision. Also the carbon fiber components are produced following strict specification and tolerances. Each part has been computer designed and optimized for the best structural performance, rigidity and lightness. The holding systems for both mirrors, the spider, rings and all the structural components, even the smallest, are CNC machined from a single block of special aluminum (6061/7075, Ergal and Anticorodal), stainless steel, titanium and brass.

The tubes are made of true carbon-graphite fiber obtained with the use of high vacuum process, allowing Officina Stellareus to obtain very stable focus during temperature changes and still maintaining the best structural rigidity and lightness.

Great care is taken in the making of the rear holding cell of the primary mirror. The entire rear cell for the primary mirror is figured to have the best rigidity/weight ratio and for the fastest possible thermal stabilization between the environment and mirror.

Great attention has been applied to simplify the collimation between the mirrors resulting in a stable, efficient but easy to use system. The collimation is accomplished by acting on just three points (the minimum required points to generate a single plane) using a special, great diameter preloaded bolts (one for each point). This results in single hand use, simply turn the bolt left or right to move the mirror back and forth (no more complicated operations using push pull screws and locks) in a very intuitive way. Finding the correct positions is a snap. The mirror border uses an opaque, circular mask to avoid any undesired light scattering. The light shields for the primary and secondary mirrors are computer designed and optimized to ensure complete illumination of the field still maintaining complete protection from stray light.

Inside the light shields there are also micro baffles that reduce internal reflections, coupled with an opaque painting of the surfaces, to nearly zero any possibility of stray light.

The back plate of the telescopes comes standard with a system for adjusting the planarity of the focal plane in order to compensate for any small misalignment in the imaging train, always unwanted and annoying specially on today’s large CCD cameras.

The Veloce RH 200 ships with the new Officina Stellare Focuser.

Officina Stellare decided to develop a special focuser which includes important features such as
large diameter, very low profile, micrometrical movement, Ability to motorise, easy interface with a lot of photo accessories.

The focuser has approx 16 mm of travel, a 72 mm x 1 (Takahashi standard thread) at the back end,

The focuser is guided by an external micrometrical screw (absolutely zero shift, the thread lockes the draw tube), and it is very strong thanks to the three Guide ball bearings.

Technical Specs:

Model Veloce RH 200
Type Riccardi-Honders Astrograph
Clear Aperture 200mm
Tube / CNC Aluminum
Focal length 600mm
F / ratio F/3, 42 mm fully corrected field diameter
Optical set glass BK7
Weight 8.4
Overall OTA length 235mm
Overall OTA Width 283mm
Spot size (@26 mm from axis, w/flattener) 8-14 microns Model Veloce RH 200
Type Riccardi-Honders Astrograph
Clear Ĝ 216 mm (8.5")
OTA assembly type Termo compensated close tube / CNC Aluminum
Focal lenth 600 mm
F / ratio f/3
Optical set glass BK7
Weight 8.4 kg
Overall OTA length 235 mm
Overall OTA Ĝ 283 mm
Standard configurations:
OTA: OTA, one dovtail bar, micrometrical Moonlite crayford manual focuser, black fabric cap.

Officina Stellare Pro RC 320 Corrected Ritchey Chretien with Sital Optics

Made to uncompromising high standards the Officina Stellare Pro RC telescopes are the ultimate on large aperture astrograph instruments.

This telescope is available in 3 configurations

OTA Version - Includes Field flattener, two dovetail bars, heater and manual control on both mirrors, manual movement of secondary mirror, black fabric shroud and caps.

Full Package - As per OTA Versionplus FLI Atlas focuser, custom adapter to CCD Camera.

PRO PACKAGE: OTA, full O.S. ATC-02 electronics with secondary mirror motorized actuator, FLI Atlas focuser, Optec Pyxis rotator, Astrodon MMOAG off axis guider, custom adapter to CCD.

All configurations include Sital Optics.

Technical Specs:

Model Pro RC 320
Type Ritchey Chrétien
Clear Ĝ 320 mm (12.5")
OTA assembly type Carbon truss tube / CNC aluminium
Focal length 2560 mm
F / ratio f/8
Optical set glass Sital
Interferometric report Yes
Weight 26 kg
Overall OTA length 910 mm
Overall OTA Ĝ 485 mm
Spot size (@26 mm from axis, w/flattener) 4 microns

Officina Stellare Pro RC 360 Corrected Ritchey Chretien

Made to uncompromising high standards the Officina Stellare Pro RC telescopes are the ultimate on large aperture astrograph instruments.

This telescope is available in 3 configurations

OTA Version - Includes Field flattener, two dovetail bars, heater and manual control on both mirrors, manual movement of secondary mirror, black fabric shroud and caps.

Full Package - As per OTA Version plus FLI Atlas focuser, custom adapter to CCD Camera.

PRO PACKAGE: OTA, full O.S. ATC-02 electronics with secondary mirror motorized actuator, FLI Atlas focuser, Optec Pyxis rotator, Astrodon MMOAG off axis guider, custom adapter to CCD.

Technical Specs:

Model Pro RC 360
Type Ritchey Chrétien
Clear Ĝ 360 mm (14")
OTA assembly type:Carbon truss tube / CNC aluminium
Focal length 2880 mm
F / ratio f/8
Optical set glass LK7 or Sital
Interferometric report Yes
Weight 34 kg
Overall OTA length 960 mm
Overall OTA Ĝ 520 mm
Spot size (@26 mm from axis, w/flattener)
5 microns

Officina Stellare Pro RC 400 Corrected Ritchey Chretien

Made to uncompromising high standards the Officina Stellare Pro RC telescopes are the ultimate on large aperture astrograph instruments.

This telescope is available in 3 configurations

OTA Version - Includes Field flattener, two dovetail bars, heater and manual control on both mirrors, manual movement of secondary mirror, black fabric shroud and caps.

Full Package - As per OTA Versionplus FLI Atlas focuser, custom adapter to CCD Camera.

PRO PACKAGE: OTA, full O.S. ATC-02 electronics with secondary mirror motorized actuator, FLI Atlas focuser, Optec Pyxis rotator, Astrodon MMOAG off axis guider, custom adapter to CCD.

Technical Specs:

Model Pro RC 400
Type Ritchey Chrétien
Clear Ĝ 400 MM (16")
OTA assembly type: Carbon truss tube / CNC aluminium
Focal lenth 3200 MM
F / ratio f/8
Optical set glass LK7 or Sital
Interferometric report Yes
Weight 42 kg
Overall OTA length 1100 mm
Overall OTA Ĝ 590 mm
Spot size (@26 mm from axis, w/flattener) 5 Microns

£3,775.00

Hiper APO 105

The Officina Stellare 105 Hiper APO features the very well known LZOS 105 F6.2 triplet lens.

The mechanical quality is first class and the scope is supplied with the excellent Feathertouch 3.5" Dual Speed rack and pinnion focuser.

The superb CF optical tube provides incredible rigidity and ultra low thermal expansion and is beautifully finished.

These are amongst the finest APO refractors available anywhere.

The Hiper APO range provides superb visual and imaging performance, with excellent colour correction, contrast and definition, optically these instruments are first rate.

The telescope is supplied with an interferometric optical test report.

Supplied with High Quality CNC Tube Rings, 3.5" Feathertouch Focuser.

Technical Specs:

Model Hiper APO 105 Type Triplet APO Refractor
Clear Aperture 105 mm
OTA assembly type Carbon close tube / CNC aluminum
Focal lenth 650 mm (400 mm @ F/3.8)
F / ratio F/6.2 native
Optical set glass OK4 Triplet APO
Interferometric report Yes
Weight 6.2 Kg
Overall OTA length 530 / 570 mm
Overall OTA Ĝ 155 mm
Standard configuration
Zero Expansion close carbon tube design, 3,5 inches FeathertouchT focuser.
Adjustable focal plane.

£3,976.00

Hiper APO 115

The Officina Stellare 115 Hiper APO features the very well known LZOS 115 F7 triplet lens.

The mechanical quality is first class and the scope is supplied with the excellent Feathertouch 3.5" Dual Speed rack and pinnion focuser.

The superb CF optical tube provides incredible rigidity and ultra low thermal expansion and is beautifully finished.

These are amongst the finest APO refractors available anywhere.

The Hiper APO range provides superb visual and imaging performance, with excellent colour correction, contrast and definition, optically these instruments are first rate.

The telescope is supplied with an interferometric optical test report.

Technical Specs:

Model Hiper APO 115
Type Triplet APO refractor
Clear Aperture 115 mm
OTA assembly type Carbon close tube / CNC aluminum
Focal lenth 805 mm (500 mm @ F/4.3)
F / ratio F/7 native
Optical set glass OK4 triplet APO
Interferometric report Yes
Weight 7.2 Kg
Overall OTA length 680 / 720 mm
Overall OTA Ĝ 155 mm
Spot size (@26 mm
from axis, w/flattener) N/A
Standard configuration
Zero Expansion close carbon tube design, 3,5 inches FT focuser. Adjustable focal plane.

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