Archived posting to the Leica Users Group, 2010/03/26
[Author Prev] [Author Next] [Thread Prev] [Thread Next] [Author Index] [Topic Index] [Home] [Search]Henning has explained this to the group previously and of course his definition is correct. I am careful to not use the 'P' word any more. If anyone looked at the two (non-scientific) examples I posted, I believe that they illustrate what Richard is trying to say and George has better described. Similar distance and conditions, comparing a 50mm on a 24x36 mm sensor with a 20mm on a 17.3x13 mm sensor. To borrow George's description you can see different relative scale of objects in near, middle and far as well as different DoF. In this instance the GF1 was at f/1.7 and the M9 was at f/2.8 but you can see less DoF with the M9 shot too. A lot of other differences naturally but those are not relevant to this discussion. Of course, there is much more to successful photographs than those differences and we've already been shown very effective and pleasing work from that lens. It looks to be the best native four thirds lens anyone has shown here, I think. You simply use the cameras differently. Cheers Geoff http://www.pbase.com/hoppyman On 27 March 2010 07:10, George Lottermoser <imagist3 at mac.com> wrote: > Right. > > I would refer to what Richard described: > > > At 12:55 AM -0700 3/26/10, Richard Man wrote: > >> e.g. if you take a photo of a person with a building way behind them. On a >> 40mm perspective, the building will appear one size, but a 20mm >> perspective >> will (I'm pretty sure) make the building look smaller. >> > > as the "relative scale" of objects > when photographing with lenses of different focal lengths. > not > as "perspective" differences. > > Regards, > George Lottermoser > george at imagist.com > http://www.imagist.com > http://www.imagist.com/blog > http://www.linkedin.com/in/imagist > > > On Mar 26, 2010, at 3:59 PM, Henning Wulff wrote: > > Perspective only depends on viewpoint. Not focal length, not aperture, not >> sensor size, not enlargement. Only viewpoint. >> > > > _______________________________________________ > Leica Users Group. > See http://leica-users.org/mailman/listinfo/lug for more information >