Terrible results using Pentax DA 40 2.8 XS

Started Feb 12, 2019 | Discussions thread
miles green
miles green Veteran Member • Posts: 7,631
Re: Terrible results using Pentax DA 40 2.8 XS

DougOB wrote:

Robertj_298 wrote:

Here is a 100% center crop and a 100 edge crop

I don't have the XS version of this lens but I had the smc standard version and now the HD version. There is something definitely wrong here, the lens should not be that bad. Even the contrast is poor.


I agree, there must be something wrong.

But just so we can isolate and properly demonstrate the problem(s)  (there could be many), please post images taken at a much faster shutter speed. At 1/15, it could be many things, particularly if SR if off. In addition to the general softness and alarming lack of contrast, i think there is some camera shake. Also you should have more direct lighting, it's sometimes hard to see details in such soft light.  Please don't misunderstand me, I think something is quite wrong with the lens, a loose element or something, this does not look normal. But if you're going to send it back, you don't want to leave any room for "yes howevers".

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Miles Green
Pentaxian since 1997!
Corfu, Greece
N.B. All my images are protected by Copyright

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Pentax K-1 Pentax K-1 II Pentax smc FA 31mm F1.8 AL Limited Pentax smc FA 43mm F1.9 Limited Pentax smc FA 77mm 1.8 Limited +7 more
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