Archived posting to the Leica Users Group, 2001/02/06
[Author Prev] [Author Next] [Thread Prev] [Thread Next] [Author Index] [Topic Index] [Home] [Search]This is printed on Cibachrome to 16x20 so the acceptable COC is quite small and focus depth on the print is exceedingly narrow. Basically unmeasurable. Jim At 10:17 PM 2/6/01 -0500, Austin Franklin wrote: >> >I believe you use the 75/1.4 quite frequently. What do your >> images show as >> >the DOF at 1.4? >> > >> >> It is rather difficult to measure distance in a 2D print. I >> have a tulip, >> photographed at f/1.4, at the closest focusing of my 75mm >> lens (~2'.) The >> DOF is at best, the thickness of the surface skin (cells, protoplasm, >> whatever) of the tulip. I would measure this as a few >> thousandths of an inch. > >I find that simply amazing. As I said, this is my primary lense, and I have >thousands of images shot at ~3' and the DOF on ones I looked at tonight show >at least 1" or more, and the subject matter has detail enough (clothing >texture) to easily show this detail. > >I'll have to go find a tulip...but that'll have to wait a few months...since >we just got 2' of snow... >