Hi Frank, > From: "Frank Filippone" <red735i@xxxxxxxxxxxxx> > Date: Fri, 25 Jan 2008 10:46:04 -0800 > > Neil... In my opinion, there is NO magnification factor.... using a > sensor ( film or otherwise) only changes the field of view or angle > of view of the sensor. > We have said exactly the same thing, using different words; there is no magnifcation factor, and thus only the coverage of the sensor changes. I was addressing your notion of "apparent FL", which for users of a particular format -- 35mm in the Leica stream of things -- implies a magnification factor with a change in FL. Some even make statements such as "a 50mm lens becomes a 100mm lens" on a smaller sensor, which it does not in either the true meaning of FL or the implied magnification factor. The amount of discussion here around the best-suited terminology to address the field or angle of view suggests that there is something to consider, no? Best regards, Neil ------ Unsubscribe or change to/from Digest Mode at: http://www.lrflex.furnfeather.net/ Archives are at: http://www.freelists.org/archives/leicareflex/