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USB_Focus adapter set for Starlight Instruments FeatherTouch 3.5" focusers. This set for FeatherTouch 3.5" includes dedicated: motor bracket and screws, new set of replacement screws, flexible coupler and hex key.
Reducer ED80SfReduces the focal length of the ED80Sf refractor by 0.85x. Fast focal ratio and wide photographic field of view Usable for prime focus photography only. Comes as standard with a T-ring for Nikon or Canon EOS or Sony αThis focal reducer fits also Skywatcher 80ED apochromatic refractor.
The 2" Enhanced Aluminum mirror coating provides a 96% reflective surface across all but the extreme ends of the visual spectrum. The enhanced coating provides extra reflectance versus competing standard aluminum coatings.
Ultra-fast VSD100mm F/3.8 Vixen astrograph. Optical design: 5 elements in 5 groups, optimized for 70mm corrected wide field digital shooting. See the VSD100 dedicated web site for details and technical specifications: http://www.skypoint.it/vixen/vsd Discontinued, product page remains active for informational purposes