Archived posting to the Leica Users Group, 2006/01/15
[Author Prev] [Author Next] [Thread Prev] [Thread Next] [Author Index] [Topic Index] [Home] [Search]On 10/01/2006, at 15:32, Richard S. Taylor wrote: > Following up on comments (on and off-list) by David Cochran, it > looks like the gray appearance and graininess in some of my recent > postings is due to simple underexposure. Compared to negatives > taken in daylight on the same film rated identically, they are very > thin. Most B/W films have a different sensibility under daylight or tungsten light. Original Tri-X (which was ISO 200 instead 400) had 200 under daylight and 160 with tungsten according kodak's data sheets. Whatever is happening technically, the relative luminances that you can find under tungsten light are typically quite steep in close areas, so you should have to meter carefully to avoid flat tones or underexposure because a relatively small area of the skin is reflecting much more than the rest and weighting a lot in the metering area. Saludos ----------------------------------------- http://imaginarymagnitude.net/blog/