Archived posting to the Leica Users Group, 2004/02/16
[Author Prev] [Author Next] [Thread Prev] [Thread Next] [Author Index] [Topic Index] [Home] [Search]> What happens is that that when you mount your 50 mm lens on a camera > with a 1.5 multiplication factor, the 50 gives you the magnification and > field of view of a 75mm lens - BUT - it still has the depth of field of > a 50 mm lens because you are still using the central portion of the 50 > mm lens...or something like that. ;-) i.e there isn't a change in depth of field? this is where I get confused with LF lenses - and the principle is the same. Using the same lens with different formats (8x10 to 4x5 or 35mm to chip/sensor) doesn't change the depth of field does it? My 250mm lens is a moderate wide angle on 8x10, but telephoto on 4x5. But the depth of field hasn't changed if I go from the 8x10 back to the 4x5 back - or has it? tim - -- To unsubscribe, see http://mejac.palo-alto.ca.us/leica-users/unsub.html