Archived posting to the Leica Users Group, 2007/01/20
[Author Prev] [Author Next] [Thread Prev] [Thread Next] [Author Index] [Topic Index] [Home] [Search]Does anyone know what the focusing compensation is when shooting IR film using a Summicron 50/2? Somewhere I think I remember it's 'focus forward 1/4% of the lens focal length' - but I may be way off on that. I tried to see if my 1963 Summicron 50/2 has IR focus adjustment indicators on it but couldn't find anything that would make sens. Also if anyone have recommendation on film and filters to use that would be greatly appreciated as this will be the first time I attempt this. /Rich