Archived posting to the Leica Users Group, 1996/05/21
[Author Prev] [Author Next] [Thread Prev] [Thread Next] [Author Index] [Topic Index] [Home] [Search]Mark, Great points! I think your comments are right on target. In particular, the comments about Leica's long and well deserved reputation for perfectly flat film plane relationships. I don't know whether or not their lens-to-body perpendicularity is any better or any worse than any other high-quality removeable lens camera nowdays given modern manufacturing methods but the film flatness thing has always been one of their fortes. And yes, an optical bench - separating the lens totally from the camera body - is the only way to evaluate one if doing a true lens test and nothing else. Rgds, Tom Hodge Davidson (Lake Norman), North Carolina On Tue, 21 May 1996, Mark Bishop wrote: > I believe that many of the optical tests performed today are undertaken *minus* > the camera body, ie the lens is mounted on a rigid stage on a test bench. This > may discriminate in favour of those camera makers whose lens bayonets may not be > as flat and as accurately positioned as a Leica's or whose ability to hold film > perfectly flat - something which Leica Ms are reputedly very good at - is less > than perfect. >