Gregory Fraser <Gregory.Fraser@pwgsc.gc.ca> writes: > > -----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? Relative size does *not* change with focal length. Have you actually taken a few photos from one spot with different focal lengths, and then looked at them closely and actually *compared* relative sizes of objects? They don't change. (*Absolute* size on the film changes with focal length.) -- David Dyer-Bennet, dd-b@dd-b.net / http://www.dd-b.net/dd-b/ John Dyer-Bennet 1915-2002 Memorial Site http://john.dyer-bennet.net Dragaera mailing lists, see http://dragaera.info
