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8
votes
Is it possible to scale up an image to increase the the pixel density?
If you mean pixel density as points per inch, and resize as an operation to change the number of pixels in the image, then you can change the pixel density freely (it affects only the size and the quality …
41
votes
What megapixel value is equivalent to which ISO film?
I think Film vs Digital article by Roger N. Clark answers exactly this question. Let me quote the chart from its summary:
The main point is that digital sensors have fixed resolutions and variable …