Askar 80PHQ 0.76x Reducer
222.00
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Askar 80PHQ 0.76x Reducer
The Askar 80PHQ 0.76x is an optical reducer designed for the Askar 80PHQ astrograph, reducing the focal ratio to f5.7 and the focal length to 456 mm for efficient astrophotography.
Askar 80PHQ 0.76x Reducer
Description
The Askar 80PHQ 0.76x is a 3 inch optical reducer specifically developed for the Askar 80PHQ astrograph. It is based on a triplet optical design and provides a 0.76x reduction factor. When used with the 80PHQ f7.5 astrograph, it delivers a reduced focal ratio of f5.7 and a resulting focal length of 456 mm. This configuration shortens exposure times and improves overall efficiency for deep sky astrophotography.
The reducer operates with a standard back focus of 55 mm. It is supplied with a four piece photographic adapter system designed to connect directly to the focuser thread during use. A built in M48x0.75 filter thread allows convenient installation of 2 inch filters within the imaging setup.
The reducer is manufactured using CNC machining to ensure precise mechanical tolerances and a refined finish suitable for demanding astrophotography applications.
Technical specifications
Compatibility: Askar 80PHQ
Reduction factor: 0.76x
Resulting focal length with 80PHQ: 456 mm
Resulting focal ratio: f5.7
Optical design: triplet
Mechanical diameter: 3 inch
Back focus: 55 mm
Filter thread: M48x0.75
Adapters: four piece photographic adapters
Manufacturing: CNC machining
Askar Réducteur 80PHQ 0.76x
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Askar 80PHQ 0.76x Reducer
The Askar 80PHQ 0.76x is an optical reducer designed for the Askar 80PHQ astrograph, reducing the focal ratio to f5.7 and the focal length to 456 mm for efficient astrophotography.