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I find it interesting that the lens matters much on a 2 megapixel sensor. On a lot of the photography forums, people talk about how much a lens "out resolves t
by azhenley 7y ago
I find it interesting that the lens matters much on a 2 megapixel sensor.
On a lot of the photography forums, people talk about how much a lens "out resolves the camera's sensor", meaning that any improvement in the lens will go unnoticed until they upgrade the sensor. They often use the DXOMARK score (perceived megapixels?) as a metric of this. It seems to make sense but I really have no idea how much truth is behind this!
- epx 7y agoWhen someone says a lens, or an optical system, resolves 2MP, it is 2MP @ 50% MTF (maximum contrast between adjacent pixels). 50% is the "good enough" of photography, but digital sensors and screens can be 100% MTF. Lenses can't do 100% but can get asymptotically near, so yes, using an "8MP" lens with 2MP sensor will show. And, even considering 50% MTF, many professional lenses struggle to go beyond 3MP.