Archived posting to the Leica Users Group, 1998/08/14
[Author Prev] [Author Next] [Thread Prev] [Thread Next] [Author Index] [Topic Index] [Home] [Search]Raimo, I think that depth of field is a function of magnification and of f stop, but not of focal length. In other words, an image made with the same magnification and the same f stop will have the same depth of field even if taken with different focal length lenses. So, that implies that for a particular magnification the f 1.4 lens will have less depth of field than will the f 2 lens, ragardless of focal length. -Mark Walberg >Shallow yes - but if you are talking about portrait at 1 m with the 90 mm >lens you must compare it with portrait at 0.83 m with the 75 mm lens >because of the lower magnification of the shorter lens. What do the tables >say? >Raimo