Do full frame lenses have improved sharpness, distortion, vignetting etc etc when adapted to m43?

Started Apr 17, 2014 | Discussions thread
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FatSmurf
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Do full frame lenses have improved sharpness, distortion, vignetting etc etc when adapted to m43?
Apr 17, 2014

Do lenses designed for larger sensors "improve" when they are adapted and used on a camera with a smaller sensor than they are designed for?  Apologies if this is a dumb question.

I ask because I know that a lens is sharper in the center than on the corners.  I figure a smaller sensor is not using the entire lens but more of the middle portion of said lens.

Therefore, a lens designed for a full frame sensor will show less distortion and vignetting when used on a smaller sensor no?

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