Quote:
Originally Posted by alistairsam
Clive,
How about two 8" reflectors, one with a 1/4 PV wavefront spec, and other a 1/10 PV wavefront spec with the same secondary?
if mirror quality doesn't lend discernible differences for DSO's, does ccd quality be it build or sensor quality make more of a difference?
eg,similar spec'd qhy, sbig, FLI or other high end cameras? or is it sensor size similar to aperture with telescopes? bigger sensor, more detail?
I'm referring to a raw capture without any processing?
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Hi Alistair,
To my understanding, the only real difference between the two OTA's you describe above is that the higher spec example will (in theory) be very, very slightly more tolerant of seeing conditions. I doubt however that you will ever be able to notice.... I would guess that it would be buried in the noise.
As far as variation between different cameras.. I have no feel for that, but intuitively, being that the manufacturer I quoted above is at the cutting edge of developing CCD's for professional astronomical research applications, I would be prepared to go out on a limb and suggest that their performance is close to 'best in class'.
~c