Quote:
Originally Posted by Poita
I've run with and without darks with the QHY8, and stopped doing darks as they really weren't necessary, there just wasn't any discernable difference in the photos I was taking. YMMV.
I agree that a temp controlled newer model would be nice, but it can easily run to twice the money, and that extra $800 or more might get more bang for buck on other items.
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You have to have had a quite wonderful camera Peter. Either that or the darks you were using were, well, useless. Any camera will benefit from the use of good dark frames, be it for the removal of hot pixels or just read noise and electronic noise.
I ued a QHY8 for many years and although the Sony chip had a very low inherant noise level it did have some noise which darks went a long way to removing.
Noise is best viewed at full frame size and look less of a problem when images are resized but usually becomes very evident when the image is cropped and resized.
I wish Chris well with the camera but can assure both of you that temprature control was the biggest step up the QHY range of cameras has experienced. It makes image control and calibration a real breeze and in my opinion probably the only reason to ditch a QHY8.