Quote:
Originally Posted by RickS
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.
Good to hear you're back on the straight and narrow, Lewis
|
Ok, it didn't seem that large a difference... I did a few tests before capturing a dark library, 50adu wasn't the exact value but on the bias' there was around 2-5% increase in base level ADU.
Like I said, we'll see what happens with SII and OIII subs, but if its around a 2-5% difference and I don't end up with ghosting, I'll be keeping it turned on