Askar 103APO 0.8x Full-Frame Reducer
189.00
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Delivery times depending on the shipping method: Switzerland: 2 to 3 days; Europe: 7 to 10 days.
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Askar 103APO 0.8x Full-Frame Reducer
0.8x reducer specifically designed for the Askar 103APO refractor, optimized for full-frame astrophotography. It reduces the focal ratio to f5.44, provides a corrected field, faster exposures, and supports a 44 mm full-frame image circle.
Askar 103APO 0.8x Full-Frame Reducer
Description
The Askar 0.8x reducer for the 103APO is a dedicated optical accessory engineered to maximize the imaging performance of the Askar 103APO refractor. By reducing the focal length to 560.32 mm and the focal ratio to f5.44, it delivers a wider corrected field of view and shorter exposure times, making it ideal for large nebulae, star clusters, and faint deep-sky objects.
Its triplet optical design ensures a fully corrected field across a 44 mm full-frame image circle, maintaining star sharpness and consistency from the center to the edges. The standard 55 mm back focus from the M48 male thread allows seamless integration with most astronomical cameras. Precision CNC machining, an M84x1 front thread, and an integrated M48 internal 2-inch filter thread provide mechanical reliability and direct filter compatibility. Threaded metal caps protect the optics when not in use.
Technical specifications
Optical compatibility: Askar 103APO
Reduction factor: 0.8x
Resulting focal length: 560.32 mm
Resulting focal ratio: f5.44
Optical design: triplet
Corrected image circle: 44 mm full-frame
Back focus: 55 mm from M48 male thread base
Front thread: M84x1
Rear threads: M54x0.75 to M48x0.75
Internal filter thread: M48x0.75 for 2-inch filters
Weight: 0.48 kg
Manufacturing: CNC machined
Caps: threaded metal caps front and rear
Askar 103APO Réducteur 0.8x
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Askar 103APO 0.8x Full-Frame Reducer
0.8x reducer specifically designed for the Askar 103APO refractor, optimized for full-frame astrophotography. It reduces the focal ratio to f5.44, provides a corrected field, faster exposures, and supports a 44 mm full-frame image circle.