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QHY CFW3 XL 9 x 50mm Filter Wheel

In stock
can be shipped within 1-2 days

Price without VAT or delivery

The QHYCFW3 Filter wheel series has been designed to offer precision operation and flexibility of use.

As a design, the CFW3 series uses a friction drive system resulting in zero backlash and precision positioning. Different size versions of the CFW3 series filter wheels will allow refitting of different filter carousels, thus allowing you to change the size or capacity of your wheel without having to replace the entire wheel. Recognition of the new wheel is done automatically.

The CFW3-XL is uniquely supplied with both a 9 x 50mm (round and 2" screw type) filter carousel and also a 7 x 50mm x 50mm sq carousel.

For such a large wheel the CFW3 is particularly slim only requiring 21.50mm of back focus. This makes it very well suited to use in imaging trains where back focus is limited.

Although optimised for use with QHY cameras, the QHY CFW3 series may be used with any brand of camera. When used with a QHY camera that features their 4 pin filter wheel connection, the filter wheel is controlled and powered via the cameras power and USB connection. If used with a non QHY camera, or camera without the 4 pin connector, the filter wheel may be control via USB 2.0 and independent power. Cables for either form of connection are supplied with the filter wheels. Switching between the the two types of connection is confirmed by pressing a status button on the exterior of the filter wheel.

The CFW3-XL wheel provides an M62x0.75 thread on the front for connection to the telescope. In addition a 2.5" nose piece is provided. There is also a 6 hole mounting pattern for screw mount of adaption. Typically this is used for direct mounting of the QHY OAG-L off axis guider or other specific adaption.

At the rear of the filter wheel a clamping ring is supplied. This is secured with six screws. For use with non QHY cameras we would advise on adaption to your particular camera. For connection to a QHY camera the clamping ring is replaced with a dovetail that is supplied with the camera. This permits secure mounting and adjustment of camera rotation.


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