Archived posting to the Leica Users Group, 2001/02/28
[Author Prev] [Author Next] [Thread Prev] [Thread Next] [Author Index] [Topic Index] [Home] [Search]Now why would there be a difference in the effects of camera shake between symmetrical and retrofocus designs of the same focal length? It does not make sense to me but that is hardly surprising as I was repeatedly dropped on my head in my youth and thus am unable to understand the simplest of concepts (such as the point of the UV filter thread for instance). Please shed some light into the great void that is my brain. .... Here's a theory that might explain the statement. When aiming a rifle with "iron sights" the longer the distance between the front and rear sights the more sensitive and accurate will be the aim. With a handgun, however, the sights are close together and accurate aim is much more difficult. The 21 lens is said to have the diaphram very close to the film plane. That might result in less relative motion at the film plane the same as there would be less relative motion (but reduced aiming sensitivity) with a handgun. Don't shoot me if I'm wrong. Bill Lawlor