Askar 0.8x Full-Frame Reducer for 140APO
279.00
Tax included
Askar 0.8x Full-Frame Reducer for 140APO
0.8x optical reducer designed for the Askar 140APO refractor. It reduces the focal ratio to f/5.6 and the focal length to 784 mm while providing a corrected full-frame 44 mm image circle. Optimized for wide-field astrophotography with faster exposure times and uniform image quality.
Askar 0.8x Full-Frame Reducer for 140APO
Description
The Askar 0.8x reducer for the 140APO is an optical accessory specifically engineered to enhance the imaging performance of the Askar 140APO refractor. Once installed, it reduces the focal length to 784 mm and the focal ratio to f/5.6, delivering a wider field of view and shorter exposure times, ideal for large nebulae, star clusters and faint deep-sky objects. Its triplet optical design provides a corrected image circle covering full-frame sensors up to 44 mm. The reducer features a standard 55 mm back focus measured from the base of the M48 male thread. The front thread is M92x1. Camera-side adapters M54x0.75 and M48x0.75 are supplied, with the M48 adapter incorporating an internal 2-inch filter thread. The entire assembly is CNC machined and supplied with threaded metal dust caps to protect the optics when not in use.
Technical specifications
Optical compatibility: Askar 140APO
Reduction factor: 0.8x
Focal length after installation: 784 mm
Focal ratio after installation: f/5.6
Optical design: triplet
Corrected image circle: 44 mm full-frame
Back focus: 55 mm from M48 male thread base
Front thread: M92x1
Supplied rear threads: M54x0.75, M48x0.75
Integrated filter thread: 2 inch M48x0.75
Weight: 0.63 kg
Manufacturing: CNC machined
Caps: threaded metal front and rear caps
Askar Réducteur 0,8x 140APO
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Askar 0.8x Full-Frame Reducer for 140APO
0.8x optical reducer designed for the Askar 140APO refractor. It reduces the focal ratio to f/5.6 and the focal length to 784 mm while providing a corrected full-frame 44 mm image circle. Optimized for wide-field astrophotography with faster exposure times and uniform image quality.