Quote:
Originally Posted by alpal
Hi Greg,
It makes me wonder whether the problems of the sensors are
far behind us and it really boils down to what lens you put in front of the sensor?
All the rest is just marketing.
I think a lot of the public are dupes thinking more pixels
equals a better picture.
cheers
Allan
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Picked it in one.
Most commercial telescope optics deliver 10 micron (or larger) spot sizes in their central zones, and quickly bloat out to more than two or more times that figure.
Add seeing disturbances and 30 micron will be a good figure on most nights.
75Mp in a 35mm sensor might sound awesome, but the reality is: those 2 micron pixels are doing you no favors at all.
Your can over-sample blurred data as much as you like. It will still look blurred.
However an optical system that delivers say 5 micron spot sizes and superb mount (+AO) that does not smear the incoming starlight beyond what the optics can deliver is FAR more important than megapixels.