Products

72mm Aperture Quintuplet APO Lens 400mm Focal Length at f/5.6 44mm Natively Flat Image Circle 140mm Available Back Focus from M68x1 Thread 3" Rack...

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....

Enables Automatic Focusing on the Askar FRA400C Compatible with Most Brands of Electronic Focusers Includes Five Synchronous Belts for a Secure Fi...

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

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

Connects M48 (2-inch) accessories to the Askar FMA180 Converts the native M42x0.75 T-thread to a larger M48x0.75 thread Made by Askar for the FMA1...

Large 10mm x 10mm guide prism M54, M48, and M42 adapters provide broad compatibility Optimized for full-frame cameras Rigid CNC-machined construct...

Provides ±2mm of fine backfocus adjustment Total optical length adjustable from 16mm to 20mm High-precision 0.05mm increments Available with M54 o...

Connects Canon RF (EOS R) mirrorless cameras to your telescope Female M54 and M48 threads on the telescope side 35 mm length reaches the sta...

Connects Nikon Z mirrorless cameras to your telescope Female M54 and M48 threads on the telescope side 39 mm length reaches the standard 55 ...

Connects Sony E (NEX) mirrorless cameras to your telescope Female M54 and M48 threads on the telescope side 37 mm length reaches the standar...

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...

Integrates telescope and camera adapters to reduce complexity Accepts five common filter formats in a single system Supports 1.25" and 2" mounted ...

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

Adds 20mm of height to Askar SQA-series telescopes Reduces the risk of OTA collisions during mount operation Creates clearance for larger cameras ...

106mm Aperture f/4.8 Focal Ratio 509mm Focal Length Quintuplet Petzval APO Optical Design with 2x SD Glass 55mm Corrected Image Circle for Medium ...

130mm Aperture Quintuplet Petzval APO Optics 624mm Focal Length at a Fast f/4.8 Focal Ratio 55mm Corrected Image Circle for Medium Format Sensors ...

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

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) Quintuplet Air-Spaced Petzval APO Optical Design Contains 2 ED Glass Elements 44mm Full-Frame Corrected I...

70mm Aperture 322mm Focal Length f/4.6 Focal Ratio Sextuplet Petzval APO Optical Design 44mm Full-Frame Image Circle Weighs only 3kg Descriptio...