The guys in Golden, CO are introducing two new, large-aperture, Richey Chretien OTAs at the ASAE show in November. They are billed as lightweight without carbon fiber parts, and use optics made from Astrosital and quartz. The focus is temperature compensated by the choice of materials and mechanical design.
400 mm, f/8, ~90 pounds
500 mm, f/9, ~120 pounds
Yuri says they might offer these in a turn-key package with the new A-P 1600 mount. (maybe he's never heard of that other mount company in Golden? 8) )
400 mm, f/8, ~90 pounds
500 mm, f/9, ~120 pounds
Yuri says they might offer these in a turn-key package with the new A-P 1600 mount. (maybe he's never heard of that other mount company in Golden? 8) )
Jim McSheehy
