Archived posting to the Leica Users Group, 1997/11/24
[Author Prev] [Author Next] [Thread Prev] [Thread Next] [Author Index] [Topic Index] [Home] [Search]Art, Thanks for your attention and information. May I ask: Is there a changement in the general consens meanwhile? I learnt (long long years ago), that the DOF-limits are about 1/3 before the subject and 2/3 behind. So, I can't explain your -3.2 and +3.3 cm at f 1.4 from the 1.4/75 mm Summilux. Alf - -------------------------------------------------------------------- At 10:55 24.11.1997 -0500, you wrote: >A misplaced decimal in Paul Ross's article in J'Accuse Leica makes for a >serious error in his calculation of depth of field. A 75mm lens at f1.4 >focused to 2 meters has a depth of field of 6.5 CENTImeters (not 6 >millimeters). However I wouldn't get too overconfident with the additional >D.O.F. D.O.F. is composed of acceptable focus in front (3.2cm) and in back >(3.3cm) of your point of focus.