contax g 35-70 zoom tests
Just tried to post this but the page died. So this will be shorter.
The 35-70 is an excellent contax G zoom well known for its flat field performance. I tested it on the Nex 7. At 35mm there is a lot of magenta on the edges and using corner fix does alleviate it but it also hurts resolution. At 50mm there is still some magenta and still some resolution loss but much less. At 75mm there is no magenta at all.
On the nex-5n it has no problems with magenta at any focal length and is an excellent medium to mid long range zoom. The optics are first class.
Here are the results of the testing.
35mm f5.6 unfixed:
35mm with corner fix:
50mm f8 unfixed:
50mm f8 with corner fix:
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