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Hi all,

Let's say I take a snapshot using Canon 600D with EF 50mm f/1.4.
Then, I crop it to 2592 X 1728 pixels (1/4 of the original 18MP) using computer software.

Now let's say I set the Canon 600D to capture snapshots with same (2592 X 1728) resolution and want to get similar results.
Should I use a EF-200mm f/1.4 (I know there is no such lens) to get the same framing and exposure?
What should be the equivalent lens in terms of DOF?

Thanks.