Askar 185APO 1x Full Frame Flattener
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    • Askar 185APO 1x Full Frame Flattener

    Askar 185APO 1x Full Frame Flattener

    279.00
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    Askar 185APO 1x Full Frame Flattener

    The Askar 185APO 1x Full Frame Flattener is optimized for the Askar 185APO refractor. It preserves the native f7 focal ratio while correcting field curvature and coma, supporting a 44 mm full-frame image circle for precise astrophotography.

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    Available immediately from the supplier. Please contact us for more information.

    Available immediately from the supplier. Please contact us for more information.

    Askar 185APO 1x Full Frame Flattener

    Description

    The Askar 185APO 1x Full Frame Flattener is specifically designed for the Askar 185APO refractor. It does not alter the telescope’s native focal ratio, which remains f/7 after installation. Its primary function is to correct field curvature and coma, delivering a flat field and finer star shapes across the entire image frame.

    This flattener uses a triplet optical design and supports a 44 mm full-frame image circle. The standard back focus is 55 mm measured from the base of the M48 male thread. It features an M92×1 front thread and includes M68×1, M54×0.75, and M48×0.75 adapters for flexible imaging connections. A built-in M48×0.75 2-inch filter thread allows direct filter installation. The entire unit is CNC machined and equipped with threaded metal caps on both ends to prevent dust when not in use.

    Technical specifications

    • Compatibility: Askar 185APO
    • Correction factor: 1x
    • Focal length after installation: 1295 mm
    • Focal ratio after installation: f/7
    • Optical design: Triplet
    • Image circle: 44 mm full frame
    • Back focus: 55 mm from the base of the M48 male thread
    • Front thread: M92×1
    • Camera-side threads: M68×1,M54×0.75,M48×0.75
    • Integrated filter thread: M48×0.75 for 2 inch filters
    • Weight: 0.74 kg
    • Manufacturing: CNC machined
    • Protection: Front and rear threaded metal caps

    Askar 185APO 1x Flattener

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