Odd Maze Pattern with Olympus E-P1 & DNG Converter

Hello.  I wanted to report an odd maze pattern when I convert a raw file from the Olympus E-P1.  It seems to happen when using wide angle lenses (Zeiss 21/4.5 C Biogon and Zeiss 25/2.8 Biogon.  The maze pattern is very prominent in the right corners of the image attached, where some softness is exhibited by the lens.  Anyone else experiencing this?  I do not get these patterns when converting with Olympus Studio or CaptureOne.  -Norm

Hello Eric,
Many thanks for your reply. I sent two RW2 files; 295 made with the 
Voigtlander Super Wide Heliar 15mm II at f/11, and file 299 with the 
Leica Summicron-C 40 mm at f/8.
The maze artifacts are most visible in the top righthand corner. The 
longer the focal point of the lens the less visible seem the artifacts.
Although I have seen posts on Flickr that the artifacts can change 
with the same focal point lenses of different brands. A 35mm Zeiss 
showed maze artifacts while a 35 Leitz did not.
I had some more interesting pictures with nice blue skies but these 
had already been converted to DNG (still showing strong maze artifacts).
If I can supply any more files or information please do not hesitate 
to ask.
Best regards,
Herb
Op 1 nov 2009, om 03:01 heeft MadManChan2000 het volgende geschreven:
Herb 19, can you please send me sample raw files (.RW2 files) taken 
with these lenses that show the problem?  You can use YouSendIt.com 
with a target email address of mailto:[email protected]
>
Thanks,
Eric
>

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