Products

Dual-band filter passing SⅡ (672nm) and OIII (500.7nm) emission lines Designed for one-shot-color cameras to capture data often missed by Hα/OIII ...

Dual-Bandpass Filter Set (OIII 6.5nm, Hα/SII 8.5nm) Includes D1 (Hα+OIII) and D2 (SII+OIII) Filters Enables SHO-like imaging with color cameras Hi...

Dual-Bandpass: 8.5nm H-alpha & 6.5nm OIII Peak Transmittance: >85% at 500.7nm and 656.6nm Light Pollution Suppression: ≥OD5 blocking from 2...

Dual-band filter passing OIII (6.5nm) and SII (8.5nm) wavelengths Peak transmittance of 85% for maximum signal capture Designed for color cameras ...

Losmandy D-Series Profile Universal Hole and Slot Mounting Pattern Flexible Accessory Integration Solid, Flex-Free Connection Description FAQ S...

300mm Overall Length Universal D-Series (Losmandy-style) Profile Slotted and Tapped Mounting Holes Designed for Tube Rings and Guide Scopes Provid...

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...

Corrects focal plane tilt without altering back focus Maintains a constant 18mm optical thickness Provides a ±1° adjustment range Features M54 fem...

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

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...