Archived posting to the Leica Users Group, 2010/04/15
[Author Prev] [Author Next] [Thread Prev] [Thread Next] [Author Index] [Topic Index] [Home] [Search]> On 15 April 2010 15:33, Vince Passaro <passaro.vince at gmail.com> wrote: > >> >> >> 2. A less simple question: the ongoing thread about Leica lenses on the >> GF1 >> began with some commentary that included language that depicted using the >> 50/1.4 on the GF1 as having a "100/1.4" lens on the camera. I see this all >> the time, the equation of the half crop with a lens twice as long. But >> isn't >> what one has really a 50mm image with a 25% crop off all four sides? And a >> slightly narrower (more tele) angle of view? Please correct me in however >> I've gotten this wrong. But I'm pretty sure that having a half-sized >> sensor >> is not the same as putting a 2x converter on a full frame. It doesn't >> yield >> the same image at all. Why do people say this? >> >> > yes, you're correct, all you're doing is cropping a 50mm picture to have > the > same FOV as a 100. > > People use it because it's convenient. And easy to understand. > > I sit there and scratch my head trying to figure out what the FOV of a 65mm > lens on a 6x6 is. But if someone told me that it was equivalent to a 35mm > on > 135 then I would understand. > > _______________________________________________ > Leica Users Group. > See http://leica-users.org/mailman/listinfo/lug for more information Yes both give you a 63 degree angle of view with their respective formats. [Rabs] Mark William Rabiner