Lenstip tests the DA 20-40 F2.8-4 Limited lens!

Started Feb 9, 2014 | Discussions thread
viking79 Forum Pro • Posts: 14,151
Re: Lenstip tests the DA 20-40 F2.8-4 Limited lens!

Walt_A wrote:

Alex Sarbu wrote:


Hi guys,

After a disappointing review of this lens on Pentax Forums in terms of their results at the 40mm end regarding edge performance, I'm pleased to see the review from my favourite site LensTip has just been published, here's the link!


Pretty negative. However, while the people at lenstip looks quite competent and knowledgeable, I have a hard time believing a site which claims the DA21 is sharper than the DA70.

I guess that with all these reviews, you don't know much about a lens until you use one yourself.

I haven't recently read these tests and am therefore not aware if the claim they 21 is sharper than the 70, however are you aware they were tested on different cameras? K10D and K-5 so you cannot compare the image resolution figures directly?

Agreed Walt, Don't compare K-5 vs K10d numbers, it makes no sense. If you do, make sure you use the same lens to calibrate between the two sets of numbers to know what the peak lp/mm will look like for that test setup.

Lens tips 21mm test is higher lp/mm because it is on the K-5 and the DA 70mm was on the K10D.


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