Hi all, I actually have one of the QHY filter wheels to use with my QHY9 camera and can say the filter wheel is beautifully made and performs as stated. The rs232 control is quite simple and it interfaces with the camera directly. I have not used the wheel a lot at this stage as I have yet to get a set of RGB filters. I have used it with a clear, uv, and Ha and look forward to trying it with RGB. Great value for money to me anyway.
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