Archived posting to the Leica Users Group, 2004/09/27
[Author Prev] [Author Next] [Thread Prev] [Thread Next] [Author Index] [Topic Index] [Home] [Search]Eric, Well, I don't have a current or even semi-current Summicron R but I will give you information from a Summilux R. Minimum focus of the Summilux is just less than twenty inches. At F4 at a typical portrait distance of one meter DOF is about 37 inches to 42 inches based on the lens scale. My 60 gives me a DOF at similar settings of 38-40 inches. Another item that may help you with focusing is that the focus pitch of the 60 gets quite steep by one meter whereas the 50 has quite a bit of movement between 0.9 and 1.2 meters. So, my sense would be that using the 50 would increase your focus rate at large apertures. At F4 even the old one cam 50 I have is quite stunningly good, maybe even as good as the 60. :) Don dorysrus@mindspring.com -----Original Message----- From: lug-bounces+dorysrus=mindspring.com@leica-users.org [mailto:lug-bounces+dorysrus=mindspring.com@leica-users.org] On Behalf Of eric Sent: Monday, September 27, 2004 6:37 PM To: Leica Users Group Subject: [Leica] R 60mm and 50mm depth of field differences? I shoot most of my portraiture work with a R body (R7, now a R8 - the 'I'm in love thread'). I have two lenses which serve me well - a 60mm macro and 100 APO macro. The 60mm gets the lion's share of use. see: A recent shoot involved a child who has a hyperactivity disorder and who had a very difficult time sitting still. Lots of blurred and near miss focus shots. Here is a near miss focus shot with the 60mm: http://www.faneuil.net/meisberger/pages/crop0011.htm I keep replaying this shot in my head and wishing to the great god of manual focus that I hadn't focused on her ears instead of her eyes! Got me thinking about trying out a vanilla 50mm summicron. What is minimum focus for this lens? Is depth of field for similar f stop settings at similar distances quite different ? (possibly a question that reveals my stupidity - but it needed asking..) Eric _______________________________________________ Leica Users Group. See http://leica-users.org/mailman/listinfo/lug for more information