Have a question to ask of you fellow QHY8 users. Just recently I had a go at imaging the HorseHead nebula with the qhy8. I was using the UV?IR filter in the camera and taking 1x1, 5min subs. I was disappointed as the image which resulted was not worth the effort. My modded 20D gave far better shots in 5 min than the QHY8. Do I need to change to the clear filter for this type of shot - I wouldn't have thought so looking at the spectrum of the IR filter which comes with the QHY8.
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