Quote:
Originally Posted by SpaceNoob
Rick is correct, but the added noise is pretty low from my very limited observation as I've only had the camera a week or so now, it was around 50ADU added noise. I am running it at -35 and RBI stands out, a lot. If I was running it warmer and the camera had a higher read noise I probably wouldn't notice the ghosting. I'll take the predictable and subtractable noise pattern over a variable ghosting impact which will no doubt degrade the stacked end result... We'll see what happens for SII and OIII subs though.
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Chris: if you're getting 50 ADU from the flush then that's adding about 8.37e- of shot noise [sqrt(signal*gain)]. That's comparable to the read noise and not insignificant. Unlikely to be an issue for LRGB imaging but it probably will result in a SNR hit with narrowband imaging.
Quote:
Originally Posted by LewisM
Last nights images were all done with NO auto-darks - all dark/bias masters subtrated in CCDStack.
The difference is VERY apparent.
No more lazy-bum autodarks here  |
Good to hear you're back on the straight and narrow, Lewis
