Archived posting to the Leica Users Group, 1999/07/07
[Author Prev] [Author Next] [Thread Prev] [Thread Next] [Author Index] [Topic Index] [Home] [Search]Mark Rabiner writes: > I'm wondering what the difference would be a say 4 feet away DOF wise > both lenses wide open? > My hunch is the Noct would give you about 1 inch front to back and the > 75 would give you 2. At 4 feet the 50mm f1 gives you 1.44 inches, the 75mm f1.4 gives you 0.72 inches. So you were close, but the wrong way round. David Morton dmorton@journalist.co.uk