Astrographs

279mm (11") Rowe-Ackermann Schmidt Astrograph Extremely fast f/2.2 focal ratio for short exposures 620mm focal length ideal for wide-field deep-sk...

355.6mm (14") Rowe-Ackermann Schmidt Astrograph Ultra-fast f/2.2 focal ratio with 790mm focal length Covers a 60.1mm image circle, with a usable f...

203mm (8") Rowe-Ackermann Schmidt Astrograph Incredibly fast 400mm f/2.0 optical system 22mm optimized image circle for sharp stars edge-to-edge U...

203mm (8") Rowe-Ackermann Schmidt Astrograph Incredibly fast f/2.0 optical system with 400mm focal length Advanced VX computerized German equatori...

152mm (5.98") Rowe-Ackermann Schmidt Astrograph Ultra-fast f/2.2 focal ratio with 335mm focal length Advanced VX computerized German equatorial mo...

203mm (8") f/2.0 Rowe-Ackermann Schmidt Astrograph 400mm focal length for incredibly wide deep-sky fields CGEM II mount provides a 40 lb instrumen...

279mm (11") Rowe-Ackermann Schmidt Astrograph Ultra-fast f/2.2 focal ratio for extremely short exposures 43.3mm optimized image circle illuminates...

8" (203mm) Rowe-Ackermann Schmidt Astrograph Ultra-fast f/2.0 optical system with 400mm focal length 55 lb capacity computerized German Equatorial...

279mm (11") Rowe-Ackermann Schmidt Astrograph Ultra-fast f/2.2 focal ratio for dramatically reduced exposure times 620mm focal length provides exp...

152mm (6") Rowe-Ackermann Schmidt Astrograph (RASA) Optics Ultra-Fast f/2.2 Focal Ratio for Short Exposures 8.3 Megapixel Sony IMX678 Color CMOS S...

152mm (5.98") Rowe-Ackermann Schmidt Astrograph Ultra-fast f/2.2 focal ratio for extremely short exposures 335mm focal length ideal for wide-field...

80mm Aperture Air-Spaced Apochromatic Triplet Optics Features HOYA FCD1 Extra-Low Dispersion Glass Includes Field Flattener for f/5 to f/7 Telesco...

80mm Air-Spaced Apochromatic Triplet Refractor iEXOS-100-2 GoTo Equatorial Mount with PMC-Eight Controller Includes 0.8x Two-Element Focal Reducer...

80mm Air-Spaced Triplet Apochromatic OTA Includes a matched 0.8x Focal Reducer iEXOS-100 Equatorial Mount with GoTo PMC-Eight wireless control sys...

Complete astrophotography bundle with 80mm triplet refractor and GoTo mount 80mm aperture and 480mm focal length for wide-field imaging HOYA FCD10...

80mm Aperture 480mm Focal Length (f/6) HOYA FCD100 ED Air-Spaced Triplet Optics Includes 0.8x Focal Reducer/Corrector 2.5" Hexagonal Focuser De...

80mm Aperture Triplet Apochromatic Refractor Features Hoya FCD100 ED Glass Element Air-Spaced Triplet Objective Lens Includes Field Flattener for ...

150mm (6") Newtonian Reflector 600mm Focal Length Fast f/4 Focal Ratio 10:1 Dual-Speed Crayford Focuser OTA Weight: 9 lbs. 10 oz. Description F...

200mm (8") Newtonian Reflector 800mm Focal Length Fast f/4 Focal Ratio 10:1 Dual-Speed Crayford Focuser OTA Weight: 20 lbs 6 oz Description FAQ...

250mm (10") Parabolic Primary Mirror 1000mm Focal Length Fast f/4 Focal Ratio 10:1 Dual-Speed Focuser 34 lb 1 oz Optical Tube Assembly Weight D...

Clear Aperture: 300mm (11.8") Focal Ratio: f/4 Focal Length: 1200mm OTA Weight: 48 lbs Focuser: 10:1 dual-speed Description FAQ Specificat...

10" (254mm) Ritchey-Chretien Optical Design 2032mm Focal Length f/8 Focal Ratio Carbon Fiber Truss Tube for Thermal Stability 3-inch, 10:1 Dual-Sp...

12" (304mm) Ritchey-Chretien Optics 2432mm Focal Length f/8 Focal Ratio Carbon Fiber Truss Tube Design 3" Dual-Speed 10:1 Crayford Focuser 53 lb O...

14" (355mm) Ritchey-Chretien Optical Design 2848mm Focal Length at f/8 Carbon Fiber Truss Tube for Thermal Stability Heavy-duty 3" Dual-Speed 10:1...