Archived posting to the Leica Users Group, 1996/04/20
[Author Prev] [Author Next] [Thread Prev] [Thread Next] [Author Index] [Topic Index] [Home] [Search]On Fri, 19 Apr 1996, joe b. wrote: > In message <Pine.SOL.3.91.960418232733.24792B-100000@godzilla2.acpub.duk > e.edu>, Michael Volow <mvolo@acpub.duke.edu> writes > >On one hand, the reflex viewfinder > >displays objects in the perspective of the focal length of the attached > >lens (e.g. wide angle lenses show wide angle perspective). What ways to > >people compensate for the fact that the Leica M viewfinder, though framing > >accurately, displays only the perspective of a 40-50mm lens. > > The M viewfinder frames correctly display the perspective of the lens in > question, assuming the frames for that lens appear in the viewfinder. > There is no way they could not do so without optical distortion. > Assuming that you remain in one place, perspective is then a function of > angle of view, which is a function of focal length of the lens used. If > the viewfinder shows the field of view for the 28mm lens, it > automatically shows the same perspective. Likewise the other frames in > the viewfinder. > > You can experiment with a rectangle cut out of a piece of card to try > different angles of view. It will all make sense in the end. ;-> > -- > joe b. > Yep...perspective has nothing to do with the lens (except for a fisheye lens). perspective is totally (that exception) controlled by the viewpoint--high, low, close or far. The lens is only a way to image it, larger, or smaller, less or more. Period. Ed Meyers