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Sigma attempts to fix green corner vignetting in DP-1



 
 
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  #1  
Old April 8th 08, 03:39 PM posted to rec.photo.digital.slr-systems
RichA
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Posts: 2,544
Default Sigma attempts to fix green corner vignetting in DP-1

http://www.dpreview.com/news/0804/08...gmaupdates.asp
  #2  
Old April 8th 08, 06:03 PM posted to rec.photo.digital.slr-systems
David Kilpatrick
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Posts: 693
Default Sigma attempts to fix green corner vignetting in DP-1

RichA wrote:
http://www.dpreview.com/news/0804/08...gmaupdates.asp



Well, I've got plenty of shots on a DP-1 without any green corner
vignetting. Having said that, I have used it for what it does best -
very sharp pix at f8 in good conditions at ISO 100. But even rubbishy
snaps taken inside aircraft, at night in cafes etc, have not had green
corners.

I have just been running 20+ final selected DP-1 pix through an action
to correct the small of CA present. It needs +8 Red/Cyan in the
Photoshop 'Distortion' menu Lens Correction filter, when exported to
53.5 megabyte double size (18 megapixel) files via Sigma Photo Pro 3.1.

David
  #3  
Old April 8th 08, 10:04 PM posted to rec.photo.digital.slr-systems
nospam
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Posts: 24,165
Default Sigma attempts to fix green corner vignetting in DP-1

In article
,
RichA wrote:

http://www.dpreview.com/news/0804/08...gmaupdates.asp


gotta wonder what they did all last year when they supposedly
overhauled the imaging pipeline.

and that's not the only problem. there's a weird red pattern in bright
highlights:

http://i200.photobucket.com/albums/aa27/sfa1966/48110082.jpg
http://farm4.static.flickr.com/3158/2397974228_51cecf1547_o.jpg
 




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