Archived posting to the Leica Users Group, 2006/11/01
[Author Prev] [Author Next] [Thread Prev] [Thread Next] [Author Index] [Topic Index] [Home] [Search]The angle of view is different, but everything else about the image is exactly the same. If you use a 47mm large format lens on a 35mm or a 6x6 or a 4x5 the results will be exactly the same on the film plane. The big difference between a 6x6 50mm lens and the same focal length for a 35mm camera is lens coverage. All that said, the lens will always have the same depth of field regardless of format. Leica lenses don't know whether they are on Leicas or Epsons or Deardorffs or oatmeal boxes. The lens doesn't know & doesn't care. It does one thing, project an image onto a plane. The best way to discern this difference is to shoot the same focal length lens with several different formats, then look at the negatives, not enlargements. OR make prints that keep the difference of format apparent. Ie: shoot one scene with three different cameras all with 75mm lenses then make prints at a 3x enlargement for all of them. Then cut out the center of the largest prints to match the size of the smallest ones. They will be exactly the same. -----Original Message----- From: lug-bounces+photo.forrest=earthlink.net@leica-users.org [mailto:lug-bounces+photo.forrest=earthlink.net@leica-users.org] On Behalf Of Walt Johnson Sent: Wednesday, November 01, 2006 12:13 PM To: Leica Users Group Subject: Re: [Leica] M8 & Depth of Field Put a 55 on a 6x6 and compare it with what you get with a 55 on a 35mm. Raimo K wrote: > A 50 is a 50 mm - always (nominally). It does not become a 65 or > anything else. > All the best! > Raimo K > Personal photography homepage at: > http://www.uusikaupunki.fi/~raikorho > > > ----- Original Message ----- From: "Walt Johnson" <walt@waltjohnson.com> > To: "Leica Users Group" <lug@leica-users.org> > Sent: Wednesday, November 01, 2006 2:47 AM > Subject: Re: [Leica] M8 & Depth of Field > > >> Luis, I'm not sure I can buy into Jim's statement. a 50 on a 35mm is >> close to normal (46 mm is closer) if it becomes a 65 wouldn't that >> change the effective depth of field? Where is that genius Marc when >> we need him? >> >> Luis Ripoll wrote: >> >>> Thanks for clarify Jim, >>> >>> Saludos cordiales, >>> Luis >>> >>> -----Mensaje original----- >>> De: lug-bounces+luisripoll=telefonica.net@leica-users.org >>> [mailto:lug-bounces+luisripoll=telefonica.net@leica-users.org] En >>> nombre de >>> Digiratidoc@aol.com >>> Enviado el: mi?rcoles, 01 de noviembre de 2006 0:16 >>> Para: lug@leica-users.org >>> Asunto: Re: [Leica] M8 & Depth of Field >>> >>> Depth of field would not change. It's still a 50mm lens but the >>> image is cropped. >>> Jim >>> In a message dated 10/31/2006 4:42:02 P.M. Central Standard Time, >>> luisripoll@telefonica.net writes: >>> Hi all, >>> >>> On the M8 lenses become 1,3x, would this affect the depth of >>> field?, on >>> other words, will have a lens the same depth of field and at the same >>> distance, on a M8 or an M?, maybe is an stupid question, but if a >>> 50 is any >>> more a 50 on a M8, and it becomes a 65, I think the depth of field >>> will >>> proportionally decrease, on this case I suppose too that actual scales >>> based >>> on 35mm format will be no more valid for 1,3 format. >>> >>> Thanks for your comments, >>> >>> Saludos desde Barcelona >>> Luis >>> _______________________________________________ >>> 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 >>> >>> >> >> _______________________________________________ >> 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