Archived posting to the Leica Users Group, 1998/01/20
[Author Prev] [Author Next] [Thread Prev] [Thread Next] [Author Index] [Topic Index] [Home] [Search]The CL-lenses are of the same quality as other Leica lenses. The somewhat slow F/4,0 is due to the fact that it was a lens meant for the Leica CL. The CL rangefinder is (because of the smaller body size) not as accurate as the M rangefinder for the fastest M-lenses or tele lenses. The F/4,0 gives larger DOF (margins) for the 90 mm. Another design goal was to produce a compact 90 mm lens, suitable for the CL camera. (A slower speed allows a more compact size) (Imagine how compact a 75/2,8 lens could be, if ever Leica decided to produce one). /Hans >Looking closely at this lens, it *appears* to be a >Tele-Elmarit or some-such, that has been aperture >restricted to f4. This would imply that Leica produced >this lens from quality-control rejects that were perhaps >not up to scratch at full aperture but OK when stopped >down to f4, and were thus "free" to produce! > >Does anybody know if this is true/likely/possible...? > >Simon. > > >Ionica, Cowley Road, Cambridge CB4 4AS >Tel (01223) 223000 >Fax (01223) 223100 >