Resolution isn't coverage of an area, it's linear

Started Apr 9, 2014 | Discussions thread
darklamp Senior Member • Posts: 3,567
Even quadrupling won't work normally
1

On paper quadrupling the number of pixels sounds like it might work, but it won't get you twice the resolution.

The reason is that lenses do not conveniently increase their resolving power just because you increase the sensor pixel count.

Even with the very best lenses you may find that you can only get the required resolution in a limited range of apertures ( typically an SLR lens will peak at f8 ) and perhaps only in the center of the frame.

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