One 300mm & Three 20MP Olympus Bodies.


Mu-43 All-Pro
Jan 14, 2018
Did a MTF on same 300mm f/4 Pro lens along with three 20 MP Olympus bodies thinking they would all show the same on a MTF chart. Seems they didn't. Just installed different body on back of the lens during test, so nothing changed there, and they are all different.

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Don't know why they are different. Maybe the sensor lenses, flatness, cover glass, IBIS mechanics (Although it and lens stabilization was off for all.).

The E1- Mark II seems the worst of the three and maybe its bayonet isn't perfectly parallel to sensor. I thought maybe the lens was whacked as it rolled off a car seat once by itself (Broke my own rule of not using a hard case to put it back into and relying on "The cylindrical lens tube.").

Just a FWIW post.

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