Archived posting to the Leica Users Group, 2010/04/15
[Author Prev] [Author Next] [Thread Prev] [Thread Next] [Author Index] [Topic Index] [Home] [Search]Vince while you are being confused and angry on 'crop factor' terminology you can add Depth of Field to your stressors. See the Zeiss article recently linked. Cheers Geoff http://www.pbase.com/hoppyman On 15 April 2010 16:19, Vince Passaro <passaro.vince at gmail.com> wrote: > But it's not easy to understand, in my opinion. Because if someone starts > saying how great it is when he/she puts a 135 on the m4/3 they're getting a > 270mm picture I get confused and angry, like a hungry overtired child.... > know what I mean? > > Thanks though for the clear answer. > > V > > > On Thu, Apr 15, 2010 at 2:03 AM, Daniel Tan <taniel.dan at gmail.com> > wrote: > > > 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 > > > > _______________________________________________ > Leica Users Group. > See http://leica-users.org/mailman/listinfo/lug for more information >