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Archive 2013 · DPR reviews EF 40/2.8 STM
  
 
skibum5
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p.2 #1 · DPR reviews EF 40/2.8 STM


super35 wrote:
To add a little perspective to the 40mm 2.8's image quality standing, these are the 18mp class lenses on the 5D3, In this order, higher to lower:

EF 100mm f/2.8L Macro IS
Zeiss Distagon T 35mm f/1.4
Zeiss Makro-Planar T 50mm f/2
EF 24-70mm f/2.8L II
EF 40mm f/2.8
EF 70-200mm f/4L IS
EF 85mm f/1.2L II
Zeiss Distagon T 28mm f/2
EF 85mm f/1.8
EF 28mm f/2.8 IS
Sigma 105mm F2.8 EX DG Macro
Sigma 70-200mm F2.8 EX DG APO OS
Tamron SP 24-70mm F2.8 Di VC USD



I'm still a bit suspicious about DxO's lens tests. They were the outfit that said the 16-35 edges became blurrier stopping down from f/2.8 to f/5.6 and that at 200mm f/2.8 that the 70-200 2.8 IS was best and 70-200 non-IS middle and 70-200 2.8 IS II the worst and that the 70-300 non-L was sharper at 300mm than the 70-300L and close to the 300 f/4 prime and so on.

They did redo their charts a bit, maybe they re-did everything with a better method this time, but man their original lens tests had endless bizarre results.



Jun 13, 2013 at 08:23 PM
toddmitchell
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p.2 #2 · DPR reviews EF 40/2.8 STM


I just ordered one so I can try it out for myself.

seems like it will be a fun walk around lens to me.



Jun 14, 2013 at 03:11 AM
zlatko
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p.2 #3 · DPR reviews EF 40/2.8 STM


super35 wrote:
DxOMark. Look at: measurements : distortion : profiles, graph of the measured real focal length.

For example, did you know that the EF 70-200mm f/4L IS USM is actually an 83 to 189mm lens.


Wow, you're right. Thanks! It is in fact 43mm -- the true standard focal length for full frame. I never thought to look in that obscure place on DxOMark.



Jun 18, 2013 at 05:40 PM
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