Is my 16F28 good, bad or average?

Started Jan 2, 2013 | Questions thread
Contributing MemberPosts: 607
Re: My NEX 16/2.8 vs. NEX "kit" 18-55mm test comparison...
In reply to Ari Aikomus, Jan 4, 2013

Ari Aikomus wrote:

Caris wrote:

Mine is poor in the corners from f2.8 to f5.6, the blurriness being especially apparent in the lower right-hand corner ( not just extreme ), stopped down to f6.3 or f7.1 it's quite good ( or at least acceptable to me ).

Yes, your copy of this lens seems to below the average-

Your f/2.8 sample is quite bad, seems to suffer decentering problem.

I may return it, and would take another copy.

Here is my test samples: NEX 16/2.8 vs. NEX "kit" 18-55mm

My test target was this Sony A99 resolution image:

I just shot the test images on the monitor. Works well enough, I think.

Here are some ISO chart shots taken with a Sony 16mm using a high resolution source.

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