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oversampling ...
With the recent discussion about sensors heating up, i was looking to get some thoughts on the importance of matching the scope to the pixel size. how do people feel about hard and fast rules around sampling? in particular what are the problems with oversampling. from my understanding, by oversampling you are dividing any given number of photons into smaller buckets without gaining any true resolution due to seeing restrictions. this results in an overall reduction in the sensitivity of the sensor.
say you were using 5 micron pixels, you would need 4 times as much time to gain the same signal from a 10 micron pixel. however, using the same scope and FL (i.e. no reducer), you are using 4, 5 micron pixels to capture the same detail as the 10 micron pixel. doesn't it all work out even in the wash? if say i am imaging at .5 arc seconds per pixel, am i going to have to image a particular object for longer (at a given magnification) to achieve the same SNR at 7.5 as/p?
is the higher sampling going to lead to blurrier images (at a given magnification) because it is not falling into larger discrete buckets?
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