Den 19.03.2017 07.58, skrev mike wilson:
Interesting. The Motic microscopes at work have quite awful spherical aberration. Maybe it's the eyepieces.
Could be. This is an infinity-corrected objective, so it is designed to leave the optical corrections to other parts of the optical path.
I tried it in front of a FA* 200/4 macro on the K-5, which was not a good idea. The 645FA 200/4 is a lot better. There's still a fair bit of odd colour rendition in the OOF areas, but the stacking eliminates most of that.
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