Yep, you'll have to vary the gain at the edges. Not an issue for digicams of course but an interesting challenge for uncoupled interchangeable RF lenses to overcome (6-bit coding a la Leica would help)
Incorrect if the micro-lenses have uniform (by angle) light transmission.
You don't need to vary gain on film, do you ? (unless you shoot a Noctilux ...)
In any case, all we need to wait for is not this technology but deeper
pixel word depth, to allow gain correction of a few stops in the corners
of a full frame sensor (with coded lenses).
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