DOF for human eye (it is a lens of sorts, right?)
I was reading up about aperture on Wikipedia, and got to this point: "The f-number of the human eye varies from about f/8.3 in a very brightly lit place to about f/2.1 in the dark."
I had previously wondered about the variability of the human eye's DOF, and reading this reminds me. Does our eye's DOF change depending on the available light? Is there any specific setting/situation where this can be easily noticed?
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