Archived posting to the Leica Users Group, 2010/10/09
[Author Prev] [Author Next] [Thread Prev] [Thread Next] [Author Index] [Topic Index] [Home] [Search]You guys are having so much fun. How about the size of the sensor for the Leica lens to be a "normal?" a^2 + b^2 = c^2 c^2 = 1600mm and lets assume 10x8 dimension, so a^2 + (0.8a)^2 = 1600 a = 222.22mm, b = 177,78mm now THAT's a full frame :-) On Sat, Oct 9, 2010 at 6:16 AM, Howard Ritter <hlritter at bex.net> wrote: > OK, here's the math: > > The ABSOLUTE image scale on the film/sensor is about the same because the > focal lengths are about the same. > > But "magnification" is a RELATIVE concept. The question is, relative to > what? > If the "what" is the image scale of the respective cameras' "normal" > lenses, then: > The magnification of the Ridiculonar on the Hassy, whose "normal" > lens is 80mm, is 1700/80 = about 21x > The magnification of the Gargantumarit on a Leica, whose "normal" > lens is 50mm, is 1600/50 = 32x > > So, for example, prints made to the same physical size from full frames > taken with the tele lenses, or full frames viewed on the same monitor, will > show the subject 21 and 32 times as large as same-size prints from the > "normal" lenses. > > ?howard > (rits) > > On Oct 9, 2010, at 4:41 AM, Mark Rabiner wrote: > > > Will I'd think somebody could do the math and then they do and you're > right > > and I'm wrong I'll concede. > > But my money goes to Leica is going to have not a slightly more > > magnification. But a lot more. > > You read it here first. Its in writing. Right here. > > Prove me wrong I'll eat crow with Bosco. > > > > -------------------- > > Mark William Rabiner > > Photography. > > http://gallery.leica-users.org/v/lugalrabs/ > > mark at rabinergroup.com > > > _______________________________________________ > Leica Users Group. > See http://leica-users.org/mailman/listinfo/lug for more information > -- // richard <http://www.imagecraft.com/> // icc blog: <http://imagecraft.wordpress.com> // photo blog: <http://www.5pmlight.com> [ For technical support on ImageCraft products, please include all previous replies in your msgs. ]