The QHYCFW3M-SR 5×2-inch Medium Filter Wheel is a standard width filter wheel that carries five 2-inch mounted filters. It can also carry five 50mm unmounted filters. The filter wheel will consume 20.5mm of back-focus, not including adapters. It is intended for use with the QHY268 and the QHY600 range of  cameras.

The QHYCFW3 range

QHYCFW3 filter wheels utilize a new motor with direct drive and will reverse direction to take the shortest path when moving from one filter to another. For Example, in this demonstration the wheel moves from filter position 1 to position 2 to position 3 and then back to 1 again, over to position 7 and back to position 1 without ever making a complete rotation of the carousel.  This saves time if you’re doing a lot of filter changes in one imaging session.

LED changes colour for each filter position.  The tricolour LED assigns one unique colour or combination of colours to each filter position so you can tell if it’s moved to the correct position without removing it from the Telescope.

The CFW3 is also thin.  This feature and the short back focus of the COLDMOS cameras means you can add one of several camera lens adapters for Canon and Nikon camera lenses for wide field imaging with the filter wheel.

In the centre of the back plate is a 12-volt DC power port.  This port is threaded for a short extension cable that is supplied with the camera that securely attaches such that it will not accidentally disconnect while you are imaging.

The QHYCFW3 comes in four size categories: small, medium, large and extra large.

Technical drawing – QHYCFW3M-SR

*Back Focus Consumed

For the convenience of calculation, all the data displayed are the increase in the back focal length taken up by using the adapter, which is not necessarily equal to the thickness of the component itself.  All the adapter data provided by QHYCCD are based on the focal length increment. For More information please see: https://www.qhyccd.com/astronomical-camera-adapter-bfl-solution/

The Calculation of Filter Wheel’s back focus consumed includes two parts: The thickness of  the filter wheel body (like the 15.5mm of CFW3S-US),   and the back focus consumed (like 4mm of CFW3S-US). Now new cams don’t need this adapter anymore, like QHY533M, QHY268M, QHY600M-PH SBFL, etc.

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QHYCFW3M-SR 5×2-inch Medium Filter Wheel

SKU: QHY-110041

$599.00

Available on back-order

✅ Fast Shipping & Tracking
✅ Stocked in Melbourne, Australia
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✅ Lifetime Technical Support

    Need Expert Advice?

    Visual Astronomy, Astrophotography, Microscopy and Macro Photography can be a little complicated sometimes as there are a lot of options. If you'd like to check something before you purchase just let us know and we'd be happy to help!

    Enquire now or call us (03) 9042 2293

    QHYCFW3M-SR 5×2-inch Medium Filter Wheel

    SKU: QHY-110041

    $599.00

    Available on back-order

    The QHYCFW3M-SR 5×2-inch Medium Filter Wheel is a standard width filter wheel that carries five 2-inch mounted filters. It can also carry five 50mm unmounted filters. The filter wheel will consume 20.5mm of back-focus, not including adapters. It is intended for use with the QHY268 and the QHY600 range of  cameras.

    The QHYCFW3 range

    QHYCFW3 filter wheels utilize a new motor with direct drive and will reverse direction to take the shortest path when moving from one filter to another. For Example, in this demonstration the wheel moves from filter position 1 to position 2 to position 3 and then back to 1 again, over to position 7 and back to position 1 without ever making a complete rotation of the carousel.  This saves time if you’re doing a lot of filter changes in one imaging session.

    LED changes colour for each filter position.  The tricolour LED assigns one unique colour or combination of colours to each filter position so you can tell if it’s moved to the correct position without removing it from the Telescope.

    The CFW3 is also thin.  This feature and the short back focus of the COLDMOS cameras means you can add one of several camera lens adapters for Canon and Nikon camera lenses for wide field imaging with the filter wheel.

    In the centre of the back plate is a 12-volt DC power port.  This port is threaded for a short extension cable that is supplied with the camera that securely attaches such that it will not accidentally disconnect while you are imaging.

    The QHYCFW3 comes in four size categories: small, medium, large and extra large.

    Technical drawing – QHYCFW3M-SR

    *Back Focus Consumed

    For the convenience of calculation, all the data displayed are the increase in the back focal length taken up by using the adapter, which is not necessarily equal to the thickness of the component itself.  All the adapter data provided by QHYCCD are based on the focal length increment. For More information please see: https://www.qhyccd.com/astronomical-camera-adapter-bfl-solution/

    The Calculation of Filter Wheel’s back focus consumed includes two parts: The thickness of  the filter wheel body (like the 15.5mm of CFW3S-US),   and the back focus consumed (like 4mm of CFW3S-US). Now new cams don’t need this adapter anymore, like QHY533M, QHY268M, QHY600M-PH SBFL, etc.

    Reviews

    There are no reviews yet.

    Be the first to review “QHYCFW3M-SR 5×2-inch Medium Filter Wheel”

    Your email address will not be published. Required fields are marked *

      Need Expert Advice?

      Visual Astronomy, Astrophotography, Microscopy and Macro Photography can be a little complicated sometimes as there are a lot of options. If you'd like to check something before you purchase just let us know and we'd be happy to help!

      Enquire now or call us (03) 9042 2293