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DXO Labs - lens tests
#1
They had very detailed sensor tests but this one is fancier... I don't know when they have introduced [url="http://www.dxomark.com/index.php/en/Lens-with-Camera/Compare-lenses/%28lens1%29/171/%28lens2%29/175/%28lens3%29/221/%28onglet%29/0/%28brand%29/Nikkor/%28brand2%29/Nikkor/%28brand3%29/Nikkor#div1anchor"]such kind of test reports[/url] but it's fun to check various kind of combinations and compare them.



Serkan
#2
I wonder why they give the Pentax DA* 16-50mm two stars for landscape. It's extremely sharp at "landscape" apertures, and it's wider than both the Canon and Nikon 17-55mm 2.8.
#3
Any lens seems to be poor on almost all bodys in their tests.

<img src='http://forum.photozone.de/public/style_emoticons/<#EMO_DIR#>/blink.gif' class='bbc_emoticon' alt='Wink' />
#4
I found that interesting also. But rather than the given stars, other technical data is quite interesting.



Serkan
#5
Interesting results comparing Pentax kit lens vs 16 - 50. Kit lens has similar resolution and vignetting, better distortion and less chr. aberrations <img src='http://forum.photozone.de/public/style_emoticons/<#EMO_DIR#>/cool.gif' class='bbc_emoticon' alt='Wink' /> .
#6
Hm, just checked the Nikon lenses: all FF lenses have the resolution around ~60 lp/mm, while all DX lenses have resolution ~40 lp/mm. Are they dividing the DX resolution by the crop factor?
#7
[quote name='arv' timestamp='1285746962' post='3347']

Interesting results comparing Pentax kit lens vs 16 - 50. Kit lens has similar resolution and vignetting, better distortion and less chr. aberrations <img src='http://forum.photozone.de/public/style_emoticons/<#EMO_DIR#>/cool.gif' class='bbc_emoticon' alt='Wink' /> .

[/quote]

Which kit lens? I have the white K-x and its kit lens. i used to have the one that came with the K10D as well, and the 16-50 is superior in several ways compared to both of them, resolution being one. That's why i bought it a second time now.
#8
I guess DA 18-55 AL II/DAL/WR. BTW, it is a second site founding similar resolution between these lenses, first being lenstip.com polish version optyczne.pl (english version doesn't contain 16 - 50). Seems here in Photozone is first version review. I do not have 16 - 50, so no personal opinion.



A.
#9
In my experience the 16-50 is sharper in the edges from 5.6 and smaller apertures. I had to go to f/11 with the white kit lens IIRC. Later on I'll be doing various comparisons to see the different qualities of both lenses more clearly compared to each other.
#10
Mind you the canon 18-55mm is as sharp as the 17-55mm.
  


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