Archived posting to the Leica Users Group, 2006/01/10
[Author Prev] [Author Next] [Thread Prev] [Thread Next] [Author Index] [Topic Index] [Home] [Search]Thanks John. Looks like the solution is to shoot ISO 400 film at no more than ISO 200 and maybe lower. Everything goes against you in tungsten light. The meter is more sensitive and the film less so. I'm either going to have to get some f1.4 lenses or start using faster film. > > Ah, so I'm not alone in this. Next time I'll derate the film a stop >> and let you know what happens. >> >> I've seen the effect on both BW400CN and Fuji Press 400 (color neg). >> > >All normal (not extended red or IR) film emulsions loose sensitivity >starting at about 620-630mu which means that tungsten illumination, which >tends to be reddish orange, is only seen at a lower sensitivity (speed). >Indeed, normal incandescent lighting needs 1 stop overexposure but some weak >tungsten light may need as much as 2 stops more exposure. The light meter >sees red better than film does. > >JB > > > > >_______________________________________________ >Leica Users Group. >See http://leica-users.org/mailman/listinfo/lug for more information -- Regards, Dick Boston MA