Archived posting to the Leica Users Group, 2001/01/28
[Author Prev] [Author Next] [Thread Prev] [Thread Next] [Author Index] [Topic Index] [Home] [Search]From the archives: - -------------------- I shoot IR film quite often in my M4, and it is quite easy. I don't usually shoot wide open, but if necessary, I'll still do it. With newer lenses I set the focus point approximately at the closer f/2 depth of field mark, with older (70's) lenses I set it at about the f/4 mark. This is all with the Kodak HIE film, which has sensitivity further into the IR than other readily available films. With others (Konica 750, the E-6 film and the Ilford film) I don't do any adjustment at all. Especially the more recent lenses are so well corrected, and the IR sensitivity is so limited, that refocussing rarely brings any benefits. The shutter has no light leak problems. For the Kodak HIE film I have a Leica 39mm IR filter, which is equivalent to an 89B, and otherwise I use gels cut to size behind a UV filter; mostly 89B or 87. The 25 filter doesn't do quite enough with the HIE. The main problem with IR is that you have to bracket a lot, and the film is expensive, but if you are going to use it, Leica-M's are ideal. * Henning J. Wulff /|\ Wulff Photography & Design /###\ mailto:henningw@archiphoto.com |[ ]| http://www.archiphoto.com > From: ZaaX@aol.com > > Can one use IR film in the M6? Can I assume that the shutter will not absorb > IR and retransmit it to the unexposed film? > It would seem that the M is a near perfect camera for IR. Since it is a RF > you don't have to look through the lens and through a #25 red filter giving > you a nice bright view for composition. >