Archived posting to the Leica Users Group, 2001/11/14
[Author Prev] [Author Next] [Thread Prev] [Thread Next] [Author Index] [Topic Index] [Home] [Search]Use a B+W KR3 filter. The higher you go, when there is clear blue sky, the higher the color temp as there is less atmosphere (moisture & stuff that is packed down at lower elevations). I've taken ton's of Leica photographs in the Colorado Rockys and after the first roll, started using a KR3, and all was well after that. Please note, it is NOT UV that is causing the blue, it is simply a higher color temp of the light. Your Leica lens has all of the UV filtering built-in. You need to warm up the light, convert it back down to 5000-8000 Kelvin (from roughly 12,000 Kelvin) color temp. Use a KR3. Jim At 11:03 AM 11/14/2001 -0500, Zeissler, Mitch wrote: >All... > >Here's my last question for today. > >While scanning photos taken in Colorado, at elevations between 9,000 and >13,000 feet, I observe that all the shots have a strong blue cast, but >that shots at less than 1,000 feet in elevation are normal. The film in >question is Portra 160NC. > >What are the experiences of others and how do you compensate for this >color shift at high elevation? Filters? Different film? > >Thanks in advance! > >/Mitch Zeissler >-- >To unsubscribe, see http://mejac.palo-alto.ca.us/leica-users/unsub.html - -- To unsubscribe, see http://mejac.palo-alto.ca.us/leica-users/unsub.html