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Askar FRA Quintuplet Astrographs

Askar FRA astrographs are quintuplet apochromatic refractors with a flat, corrected field designed for imaging. The line includes the FRA300 Pro (60mm f/5), FRA400 and FRA400C (72mm f/5.6), FRA500 (90mm f/5.6) and FRA600 (108mm f/5.6), covering focal lengths from 300mm to 600mm.

Full-frame reducers bring the FRA400, FRA500 and FRA600 to f/3.9 for faster sessions on faint nebulae, a 0.7x full-frame reducer suits the FRA400C, and an AF kit motorizes its focus.

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CA$384.00 - CA$384.00
CA$384.00
CA$384.00 - CA$384.00
CA$384.00

Askar 2.5" F/3.9 Full Frame Reducer for FRA400 and FRA500

ASK-ASKAR7256RD
2 in stock

Reduces focal ratio to a fast f/3.9 0.7x reduction factor 44mm image circle fully illuminates full-frame sensors Standard 55mm back focus for easy...

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CA$384.00 - CA$384.00
CA$384.00
CA$384.00 - CA$384.00
CA$384.00
CA$1,679.00 - CA$1,679.00
CA$1,679.00
CA$1,679.00 - CA$1,679.00
CA$1,679.00

Askar FRA400 72mm f/5.6 Quintuplet APO

ASK-FRA400
2 in stock

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...

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CA$1,679.00 - CA$1,679.00
CA$1,679.00
CA$1,679.00 - CA$1,679.00
CA$1,679.00
CA$1,329.00 - CA$1,329.00
CA$1,329.00
CA$1,329.00 - CA$1,329.00
CA$1,329.00

Askar FRA300 Pro 60mm f/5 Quintuplet APO

ASK-FRA300

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

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CA$1,329.00 - CA$1,329.00
CA$1,329.00
CA$1,329.00 - CA$1,329.00
CA$1,329.00
CA$2,799.00 - CA$2,799.00
CA$2,799.00
CA$2,799.00 - CA$2,799.00
CA$2,799.00

Askar FRA500 90mm f/5.6 Quintuplet APO

ASK-FRA500

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...

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CA$2,799.00 - CA$2,799.00
CA$2,799.00
CA$2,799.00 - CA$2,799.00
CA$2,799.00
CA$3,639.00 - CA$3,639.00
CA$3,639.00
CA$3,639.00 - CA$3,639.00
CA$3,639.00

Askar FRA600 108mm f/5.6 Quintuplet APO

ASK-FRA600

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

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CA$3,639.00 - CA$3,639.00
CA$3,639.00
CA$3,639.00 - CA$3,639.00
CA$3,639.00
CA$615.00 - CA$615.00
CA$615.00
CA$615.00 - CA$615.00
CA$615.00

Askar 3" F/3.9 Full Frame Reducer for FRA600

ASK-ASKAR656RD

Reduces FRA600 focal ratio to F/3.9 Designed for full-frame sensors Maintains a standard 55mm backfocus Features integrated M48 (2-inch) filter th...

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CA$615.00 - CA$615.00
CA$615.00
CA$615.00 - CA$615.00
CA$615.00
CA$1,253.00 - CA$1,253.00
CA$1,253.00
CA$1,253.00 - CA$1,253.00
CA$1,253.00

Askar FRA400C 72mm f/5.6 Quintuplet APO

ASK-FRA400C

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....

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CA$1,253.00 - CA$1,253.00
CA$1,253.00
CA$1,253.00 - CA$1,253.00
CA$1,253.00
Askar FRA400C AF Kit
CA$41.00 - CA$41.00
CA$41.00
CA$41.00 - CA$41.00
CA$41.00

Askar FRA400C AF Kit

ASK-FRA400C-AFKIT

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

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CA$41.00 - CA$41.00
CA$41.00
CA$41.00 - CA$41.00
CA$41.00