Vixen Optics VMC200L Telescope and GPD2 Mount with D2M Motor Set

The VMC200L is a unique catadioptric optical system. It incorporates a primary mirror and a meniscus corrector just before a secondary mirror. By doing so, light is corrected twice on the optical path. The end result is that the spherical aberration and field curvature are corrected to a high degree of optical performance. Vixen's VMC200L's primary mirror is F/2.5; the compound optical system is F/9.75. This combination creates a very compact and portable system. Placing the optical correction placed before the secondary mirror avoids the necessity of having a corrector plate and the dewing problems associated with a closed optical tube. The rack and pinion focusing is placed behind the primary mirror. The use of this focusing system eliminates the image shift associated with most other SCT systems. This is especially important when using high power magnification or astrophotography. When focusing, the image is stable and easy to adjust. The GPD2 equatorial mount is the stronger and heftier of the GP mounts. With its solid steel R. A. and declination axes and brass worm gears, this mount will hold up to years of heavy use. In order to assure accurate tracking for astrophotography, the worm gears are especially machined to a very high precision that minimizes periodic error. With the addition of the DD2 Motor track objects with ease.

Features:

• Includes DD-2 controller, two MT-1WT motors and a battery box
• Azimuth adjustment: Double screw fine adjustment
• Astrophotography: Prime focus, eyepiece projection and afocal imaging
• Optical design: Modified catadioptric reflector

Specifications:

• Drive speed: Sidereal rate, 1.5x, 2x, and 32x, pause and reverse motions
• Electricity consumption: 0.8 ampere (max)
• Voltage: DC 7.5 to 12 volts
• Continuous operation duration: About 20 hours with alkaline batteries
• Operation temperature: 14° to 122°
• Applicable mounts: GP2, GPD2, GP, GP-DX, GP-E
• Aperture: 200mm
• Focal length: 1950mm
• Focal ratio: F/9.75
• Coating: Multi coating
• Resolving power: 0.58 arc sec
• Limiting magnitude: 13.3
• Light gathering power: 816x
• Adapter thread: 60mm/50.8mm
• Visual back compression ring
• Optical tube length: 20" (510mm)
• Optical tube diameter: 9.1" (232mm)
• Optical tube weight: 5.9 lbs
• Accessories: Flip mirror diagonal, dovetail plate, 7x50 finder scope
• Mount: GPD2 equatorial mount
• Tripod: HAL130
• Tripod weight: 12 lbs
• Mount weight: 19 lbs
• Counterweights: 4.2 lbs (1.9 kg) and 8.15 lbs (3.7 kg)
• Hand controller: DD2 Controller
• Load capacity: 35 lbs
• Power requirements: DC 7.5 to 12 Volts
• RA slow motion axis: 144 tooth wheel gear – whole circle movement
• DEC slow motion axis: 144 tooth wheel gear – whole circle movement
• RA graduations: 10 min. increments
• DEC coordinate display: 2° increments
• Polar axis scope: 6x20mm wide 8° field of view
• Altitude adjustment: 0 to 62° (2° increments)
• Batteries: 8 "D" batteries (not included)