Archived posting to the Leica Users Group, 2013/01/07
[Author Prev] [Author Next] [Thread Prev] [Thread Next] [Author Index] [Topic Index] [Home] [Search]I asked because I read this aboui the Zeiss 21mm optics from Ken Rockwell..... "This f/4.5 lens is not for use on the LEICA M9 because its rear nodal point is not in a position for which the M9's internal lens profiles can compensate. If you're shooting an M9, get the Zeiss 21mm f/2.8 ZM or LEICA ELMARIT-M 21mm f/2.8 ASPH instead, because their rear nodal points are in positions for which the 21 f/2.8 11134 profile compensates quite nicely. If you use this f/4.5 lens on an M9, you'll get nasty color shifts on the sides. Only an idiot would expend the effort to use special software to try to compensate for this lens on an M9, when the Zeiss 21mm f/2.8 ZM or LEICA ELMARIT-M 21mm f/2.8 ASPH work so much better - on the M9. If you have an M9, whose value depreciates by thousands of dollars a year, you easily can afford to buy any lenses you want, whose value only increases with time." I fully understand that at times, Rockwell is not right. In this case, what is your experience with M9 corrections and color shifts? Frank Filippone Red735i at verizon.net I have the 21 f/4.5. I'm skeptical of fast optics, particularly wide angles, that use only spherical elements. Note that Zeiss has gone ASPH for the Sony 35 f/2. Paul