On 5/9/2016 7:50 PM, Mark Roberts wrote:
Stanley Halpin wrote:

DA 40/2.8: Slight darkening of the corners. If I “Enable Profile Correction” 
inLightroom (leaving the Distortion and Vignetting parameters at default zero) 
then the shadows are gone.

Here's a test I'd like to see: Comparing the DA 40/2.8 with the old
M40/2.8 on the K-1. I'd bet that they perform almost identically and
what's really changed is our idea of what is an acceptable amount of
light fallof in the corners at wide apertures.



I might be able to arrange that, what with having both lenses. Hopefully I d my old 40mm. I haven't seen it for several years.

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