Quote:
Originally Posted by Camelopardalis
Which is why I suggested the 224...the read noise is so low that you can dial up the gain almost without consequence. It's a small chip though - 4.8x3.6mm
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That's an interesting point. I didn't think of it like that. Ah well, nothing to be done for it now.
The 174MM is here now and does show vignetting with my OAG. Haven't done a proper flat on it, I was looking at it through PHD where it had been auto stretched so I'm not sure of the extent, but it doesn't look significant.