No. There is no change in the relative size of objects in the photographs, no compression due to changing focal length alone. Only movement toward or away from the subject will effect compression or expansion. Regards, Bob... From: "Gregory Fraser" <Gregory.Fraser@pwgsc.gc.ca> > > -----Original Message----- > > From: luis [mailto:chilled_delirium@mailstation.com] > > > > >Dave writes: > > >> Changing focal length alone can definitely alter the > > relationship between > > >> objects as seen in your view finder. > > > > No. Karl is right. All changing focal length does is change > > the angle of view. The relationship between still objects > > (and space) in a scene (perspective) remains fixed as long as > > the photographer > > does not move. > > Pardon my interruption but I think what Dave is talking about is compression as opposed to perspective. The vertical and horizontal placement of objects does not change from one focal length to another however the relative size of objects does change with focal length as does the apparent depth of the image. Doesn't it to you?
