Owl Nebula – Sony IMX224

The Owl Nebula. 5×300 sec @ 100 Gain, RT Sony IMX224, Televue TV-85 at F/5.6, Sharpcap 2.9.

I tried long exposures with no gain and no darks using the Rising Tech Sony IMX224 eyepiece/guider cam to image the Owl Nebula, recently.  I was using it like I would one of my Canon DSLR cameras with long exposures at low ISO when shooting in bad LP conditions.

Hot pixels were worse than I thought, so I had to do some aggressive noise reduction.   Next time, I will definitely use darks based on this experience.  The camera has low read noise, but not low hot pixels with exposures this long.

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