Archived posting to the Leica Users Group, 2006/12/23
[Author Prev] [Author Next] [Thread Prev] [Thread Next] [Author Index] [Topic Index] [Home] [Search]Hi Tina, all. The guys on the Leica forum have been using IR filters of the kind to be provided by Leica, with excellent results. I'd suggest people go and have a look before getting upset about the M8's IR light sensitivity. Apart from colour correction, the other benefit of the IR filter is that it will improve sharpness - the IR light rays refract differently from the coloured light we do want to reach the sensor. Perhaps this is the problem with the candle and flag picture - it is swamped with IR which is causing overall blurring of visible band light rays. Have you been able to try IR filters yet? Regards and happy Christmas, Rick. > Tina > > I though Photoshop could correct just about any color shift? I was > trying with the Underwater filter and it seemed to help. > > > Walt > > Tina Manley wrote: > >> At 08:26 AM 12/21/2006, you wrote: >> >>> Please note that changing WB after the fact cannot fix the IR >>> problems--the IR contamination shifts the colors of objects >>> differently, depending on how much they reflect IR. Synthetic >>> black goes to magenta. Synthetic green goes to gray, and so forth. >>> >>> Mark Davison >> >> >> Right, Mark! I've discovered that no amount of color balancing in >> photoshop can correct the strange colors. Capture One seems to do >> the best job with the Leica DNG files but it's still way off. I >> hope the IR filters will correct this and am encouraged to find >> out that they don't cut the light any. >> >> Tina >> >> Tina Manley, ASMP, NPPA >> http://www.tinamanley.com >> >> _______________________________________________ >> Leica Users Group. >> See http://leica-users.org/mailman/listinfo/lug for more information >> > > _______________________________________________ > Leica Users Group. > See http://leica-users.org/mailman/listinfo/lug for more information