Archived posting to the Leica Users Group, 2006/11/27
[Author Prev] [Author Next] [Thread Prev] [Thread Next] [Author Index] [Topic Index] [Home] [Search]John, That makes sense since the DR have to match the Bugeye extension tubes. As far as I know though the 1st rigid including the DR have the same lens formula. Len On Nov 27, 2006, at 6:37 PM, John Collier wrote: > I can't remember all the details, or even my middle name half the > time, but the DR lenses are all the same exact focal length. The > rigid mount came in several variations to suit the slight focal > length variations of the production line optical units. > > John Collier > > On 27-Nov-06, at 4:11 PM, Phil Swango wrote: > >> Marc Small wrote: >>> I believe that the Rigid 2/5cm Summicron is identical >>> optically to the DR/NF version of that lens, the only difference >>> being in >>> the lens mount, but I have never researched this and that could >>> be a third >>> design based on a common pattern. >> >> That's what Erwin Puts says too. I don't know if he's a reliable >> source or >> not. I've had both and couldn't see any difference. > > _______________________________________________ > Leica Users Group. > See http://leica-users.org/mailman/listinfo/lug for more information