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 Forum Member • Posts: 60
Do full frame lenses have improved sharpness, distortion, vignetting etc etc when adapted to m43?

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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