About the Vixen VC200L - 200mm Catadioptric Reflector Telescope w/ Sphinx SX2 Mount & Starbook One...
The Vixen VC 200L Reflector Telescope is an 8" f/9.0 highly corrected, highly specialized Vixen Telescope for astro imaging. Vixen'''s unique catadioptric design features a high precision sixth order aspherical primary mirror, a convex secondary mirror and triplet corrector lens. VISAC is an abbreviation for Vixen'''s Six-Order Aspherical Cassegrain. The primary Vixen Telescope mirror is held by a retaining ring, instead of hooks, to decrease flare and enhance contrast.
The VISAC System incorporated into the Vixen VC 200L Reflector Telescope provides high-definition star images to the edge of a wide viewing field and offers exceptionally outstanding performance in astrophotography. Even at the edge of the 35mm film format (larger CCD chips) stars are sharp (smaller than 15 micrometers). This is smaller than the resolution of fine quality CCD cameras, which means that the Vixen Telescope does not limit the image quality.
With its elaborate aspherical optical design, the Vixen VC 200L Reflector Telescope achieves excellent image correction throughout the large illuminated field. (42mm diameter fully illuminated) Astronomy Technology Review states: "The VC200L Vixen Telescope focuser is one of the smoothest I'''ve ever tested...overall the visual image quality of the VC200L was quite impressive...and is a step up from the typical Schmidt-Cassegrain." With the f/6.4 reducer you get much shorter exposure times. Vixen'''s Dual Speed Focuser and compression ring are included.
Star Book One Functions: Celestial, Solar, Lunar, and King''s Rate Tracking, Slewing Speeds Variable from 0.1x to 999x sidereal , Backlash Compensation, PEC, Autoguider port, Screen Brightness Adjustable, Direction Keys, Red LED Light
Easy Secure Setup: The Vixen Sphinx SX2 Mount sets up in minutes. One bolt secures it to the tripod. Beginners and seasoned hobbyists will benefit from the portability of the Vixen Telescope Mount, the easy to use controller, the ability to download future upgrades directly to the controller and the versatility of placing a variety of Vixen Telescopes on this equatorial Vixen Telescope Mount with Vixen'''s universal dove tail plate.
Unique Motor Layout: The internal placement of the the RA and DEC motors in the Vixen Sphinx SX2 Mount allow the motors to act as a built in counterweight. Small Vixen Telescopes require no additional counterweights.
Retractable Counterweight Shaft: Constructed of corrosion resistant stainless steel, it retracts into the Vixen Sphinx SX2 Mount body for easy storage.
Vixen VC200L - 200mm Catadioptric Reflector Telescope w/ Sphinx SX2 Mount & Starbook One Features...
- 8" f/9.0 highly corrected, highly specialized telescope for astro imaging
- Unique catadioptric design features a high precision sixth order aspherical primary mirror
- Convex secondary mirror and triplet corrector lens
- VISAC System provides high-definition star images to the edge of a wide viewing field and offers exceptionally outstanding performance in astrophotography
- Primary mirror is held by a retaining ring, instead of hooks, to decrease flare and enhance contrast
- Achieves excellent image correction throughout the large illuminated field. (42mm diameter fully illuminated)
- Dual Speed Focuser and compression ring are included
- Features the Star Book One Hand Controller
- Internal placement of the the RA and DEC motors allow the motors to act as a built in counterweight
- Constructed of corrosion resistant stainless steel
- Includes sturdy HAL130 tripod
Vixen VC200L - 200mm Catadioptric Reflector Telescope w/ Sphinx SX2 Mount & Starbook One Specifications...
Optical Design: VISAC Aspherical Mirror Reflector
Focal Length: 1800mm
Focal Ratio: f/9.0
Coating: Multi Coated
Resolving Power: 0.58 arc sec
Theoretical Resolution: 0.63"
Limiting Magnitude: 13.3
Light Gathering Power: 816x
Finder Scope: Optional
Adapter Thread: 60mm/50.8mm
Astrophotography: Prime Focus, Eyepiece Projection & Afocal Imaging
Visual Back: Compression Ring,
Focuser: Dual Speed
Optical Tube Length: 23.6" (600mm)
Optical Tube Diameter: 9.1" (232mm)
Optical Tube Weight: 13.2 lb
Accessories: Dove Tail Mounting Rail; Carry Handle
Available Accessories: Flip Mirror Diagonal; 7x50 Finder Scope;
RA Slow Motion/DEC Slow Motion: 180 Tooth full circle micro-movement wheel gear
RA Axis: 40mm diameter, aluminum alloy die casting
DEC Axis: 35mm diameter, aluminum alloy
Azimuth Adjustment: Fine Adjustments: About +-7 deg; Twin tangent screws/knob: About 1.2 deg per rotation
Altitude Adjustment: Latitude between 0 ~ 70, 3 altitude zone setting, Altitude Scale: 2 deg increments, Twin T Bar Handles: 0.8 deg rotation
Drive Motor: Stepping (Pulse) Motors with 250PPS
Loading Capacity: About 27 lbs excluding counterweight
Weight: About 15.5 lbs, excluding counterweight
Controller: STAR BOOK ONE
Optional Accessories: STAR BOOK TEN, SXG Half Pillar, AC Power SourceVixen Product Number: 25077DS