FYI Sigma magenta issue

[GaryLH]

For those seeing this problem, someone over at getdpi posted a fix based on converting to DNG then running thru LR4 w/ a plugin called flat field.

http://www.luminous-landscape.com/forum/index.php?topic=79606.0

Just spotted the thread this morning. I am a Aperture user, any LR users amongst us?

Gary

 

[dfatty]

this could be very useful for fixing an otherwise good photo if it works, hopefully we have a LR user who can confirm.

 

[FA Limited]

i have LR4 but have not really had a chance to try that ... maybe when i get a chance i can report back

 

[GaryLH]

Thanks that would be great
Gary

 

[noimmunity]

I'm now travelling in Taiwan, so it's hard for me to test this, but I would really LOVE to have a workable fix for this issue. I shoot skyscapes regularly, and the magenta/green cast issue arises frequently with cloud formations. I've been using multiple passes of the color cast filter in Color Efex 4 to handle the problem so far, with mixed results.

If there is an LR plug in, I'm in!