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Sky-Watcher Skymax 200DX 0.7x Reducer
Sky-Watcher Skymax 200DX 0.7x Reducer
Sky-Watcher Skymax 200DX 0.7x Reducer
Sky-Watcher Skymax 200DX 0.7x Reducer

Sky-Watcher Skymax 200DX 0.7x Reducer

by Sky-Watcher
SKU SW-S20224
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CA$590.00 - CA$590.00
CA$590.00
CA$590.00 - CA$590.00
CA$590.00
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  • 0.7x Reducer Matched to the Skymax 200DX
  • Converts 2000mm f/10 to 1400mm f/7
  • 43mm Image Circle for APS-C and Full-Frame Sensors
  • 55mm Back Focus
  • M48 Camera-Side Thread
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  • Description
  • FAQ
  • Specifications
  • In the Box
  • Warranty

  • Sky-Watcher Skymax 200DX 0.7x Reducer

    The Sky-Watcher Skymax 200DX 0.7x Reducer is the matched imaging corrector for the Skymax 200DX Maksutov-Cassegrain. It reduces the telescope's focal length from 2000mm to 1400mm and its focal ratio from f/10 to f/7, widening the field of view and shortening exposure times while delivering a 43mm image circle with 55mm of back focus.

    About Half the Exposure Time at f/7

    Going from f/10 to f/7 roughly doubles the light reaching each pixel, so you need about half the exposure time for the same signal. The field of view also grows by a factor of about 1.43 in each direction, which frames larger galaxies and nebulae that do not fit at the native 2000mm focal length.

    43mm Image Circle with Standard M48 Spacing

    The reducer delivers a fully illuminated, corrected image circle 43mm in diameter, suitable for camera sensors up to APS-C and full-frame. Its standard M48 thread and 55mm back focus work with common M48 adapter rings and spacers, so setting the correct distance to your sensor is straightforward.

  • Which telescope does this reducer fit?

    This 0.7x reducer is designed specifically for the Sky-Watcher Skymax 200DX.

    What back focus does the Skymax 200DX 0.7x Reducer need?

    It is designed for 55mm of back focus and has a standard M48 thread for use with M48 adapter rings. Add the spacers or adapter rings your camera requires to reach that distance.

    Will it cover a full-frame camera?

    The reducer produces a 43mm corrected image circle, which is rated for sensors up to APS-C and full-frame.

    What focal length and focal ratio do I get with the reducer?

    With the reducer installed, the Skymax 200DX works at 1400mm and f/7, compared with 2000mm and f/10 natively.

  • UPC 810098971010
    Optical Specifications
    Type Reducer
    Reduction 0.7x
    Compatible Telescope Skymax 200DX
    Reduced Focal Length 1400mm
    Reduced Focal Ratio f/7
    Image Circle 43mm
    Mechanical Specifications
    Back Focus 55mm
    Camera-Side Thread M48

    • Skymax 200DX 0.7x Reducer

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  • Sky-Watcher 2-Year Limited Warranty