Archived posting to the Leica Users Group, 2009/02/06
[Author Prev] [Author Next] [Thread Prev] [Thread Next] [Author Index] [Topic Index] [Home] [Search]or <http://johnhendry.com/gadget/dof.php> Regards, George Lottermoser george@imagist.com http://www.imagist.com http://www.imagist.com/blog http://www.linkedin.com/in/imagist On Feb 6, 2009, at 9:15 PM, Jim Nichols wrote: > Adam, > > My understanding is the same as yours. > > Jim Nichols > Tullahoma, TN USA > ----- Original Message ----- From: "Adam Bridge" <abridge@gmail.com> > To: "Leica Users Group" <lug@leica-users.org> > Sent: Friday, February 06, 2009 7:52 PM > Subject: Re: [Leica] Is the DOF using a digital sensor any > different than thatof film? > > >> I think you're answering a different question. The question I heard >> essentially says this: "If I shoot a 50mm lens on my M8 will the >> depth >> of field be identical to the image made by an M6 with the same lens >> (cropped to match the M8). >> >> I would say the answer has to be yes. I cannot make my head wrap >> around any different answer. >> >> Adam >> >> On Fri, Feb 6, 2009 at 4:45 AM, Vick Ko <vick.ko@sympatico.ca> wrote: >>> Bingo! >>> >>> That's it - the 50mm with a cropped frame is a different >>> perspective than a >>> true 100mm lens !!!! >>> >>> Or to truly exaggerate the phenomena, use a very wide angle lens, >>> and crop >>> the image to equivalent to the longer focal length (e.g 18mm >>> cropped to what >>> a 75mm will show). I'm thinking the image will have the >>> perspective of the >>> 18mm lens (i.e. large nose if image is a face), but image size >>> might be >>> equivalent to the 75mm. >>> DOF is whatever the 18mm lens aperture was set at. >>> >>> Right? >>> >>> Vick >>> >>> >>> Don Dory wrote: >>>> >>>> Vick, >>> >>> ....; you will however get a different perspective as the crop >>> sensor will >>> not include as much of the scene. >>>> >>>> >>> >>> >>> _______________________________________________ >>> 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 >> > > > > _______________________________________________ > Leica Users Group. > See http://leica-users.org/mailman/listinfo/lug for more information