Products

400mm Length D-Series (Losmandy-style) Profile Universal Hole and Slot Pattern Connects Tube Rings and Accessories Solid, Flex-Free Mounting Platf...

135mm Focal Length f/4.5 Focal Ratio 30mm Aperture Sextuplet APO Optical Design 280g Total Weight Description FAQ Specifications In the Box Dow...

40mm Aperture Sextuplet APO Lens 180mm Focal Length at a Fast f/4.5 44mm Image Circle for Full-Frame Sensors Standard 55mm Back Focus with M48x0.7...

60mm Aperture Quintuplet APO Astrograph 300mm Focal Length at a Fast f/5 Focal Ratio 44mm Full-Frame Image Circle Integrated Petzval Corrector Des...

72mm Aperture Quintuplet APO Lens 400mm Focal Length at f/5.6 44mm Full-Frame Image Circle 140mm Available Back Focus 3" Rack-and-Pinion Focuser w...

72mm Aperture Quintuplet APO Optics 400mm Focal Length at f/5.6 Covers a 44mm Full-Frame Image Circle Integrated 17-Blade Aperture (f/5.6-f/22) 2....

90mm Aperture Quintuplet APO Optics 500mm Focal Length at f/5.6 Massive 55mm Flat-Field Image Circle Includes Two ED Glass Elements Total Assemble...

108mm Aperture 600mm Focal Length (f/5.6) Quintuplet Flat-Field APO Optical Design 66mm Corrected Image Circle Total Weight of 6.5kg Descriptio...

Securely adapts Canon EOS-R mirrorless camera bodies Connects to M54x0.75 and M48x0.75 threaded correctors Integrated rotational adjuster for fine...

Designed specifically for the Askar FRA600/5.6 Astrograph Provides a standard Vixen-style dovetail connection point Compatible with various Askar ...

Designed for a seamless fit with the Askar FRA400/5.6 Astrograph Accepts any accessory with a standard Vixen-style dovetail foot Provides a secure...

160mm Aperture Parabolic Mirror f/3.4 Focal Ratio with Included 0.95x Corrector 544mm Corrected Focal Length Carbon Fiber Tube Construction 3.97kg...

106mm Aperture f/4.8 Focal Ratio 509mm Focal Length Quintuplet Petzval APO Optical Design 55mm Image Circle for Medium Format Description FAQ S...

55mm Aperture Quintuplet APO Astrograph Fast f/4.8 Focal Ratio 264mm Focal Length Covers a 44mm Full-Frame Image Circle 14-Blade Aperture with f/4...

Designed specifically for the Askar SQA55 Astrograph Enables autofocus with nearly all brands of electronic focusers Includes 4 MXL belts and 2 pu...

Designed specifically for the Askar SQA55 Astrograph Tool-free quick-release installation and removal Integrated multi-functional finder base slot...

60mm Aperture Sextuplet APO Optics 276mm Focal Length at a Fast f/4.6 44mm Full-Frame Corrected Image Circle Integrated Petzval Design with 2 SD G...

70mm Aperture 336mm Focal Length f/4.8 Focal Ratio Quintuplet (5-Element) APO Petzval Optical Design 44mm Full-Frame Image Circle Contains Two ED ...

85mm Aperture 408mm Focal Length (f/4.8) Quintuplet Petzval APO Optical Design Supports Full-Frame (44mm) Image Circle 3.64kg OTA Weight Descri...

60mm Aperture Triplet Air-Spaced APO Objective 360mm Focal Length f/6 Native Focal Ratio Modular design supports optional 80mm objective lens Stan...

150mm Length V-Series (Vixen-Style) Profile Universal Mounting Slots and Holes Connects Tube Rings, Guide Scopes, or Cameras Description FAQ Sp...

200mm Length V-Series (Vixen-style) Profile Universal Hole and Slot Pattern Mounts Tube Rings, Guide Rings, and Cameras Tripod Compatible Descr...

300mm Vixen-Style Dovetail Plate Universal Mounting Slots and Holes Ideal for Telescope Tube Rings and Guide Scopes Lightweight and Rigid Construc...