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Showing results for tags '90mm apo cron'.
Found 2 results
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I bought the APO Summicron 90mm new with my M9 last December. I could never get a sharp image with it and figured it was my inability to focus. I bought a 50 Noct, 28 Cron, 35 Cron and 50 Cron. Every lens is bightingly sharp and I can nail the focus of the Noct at f/1 just about every time. Thus my 90mm was left abandoned until May when I sent it back to Solms for adjustment. Two months later (yesterday) it arrived back. I took a few shots at f/2 at minimum focus distance and saw the crazy sharpness that everyone talks about. I then took some shots at medium to infinity distance at f/2 and could not get one that was even close to sharp. Even infinity seemed soft. The focus seems a bit stiff and sticky and that does not help, but I took much care focussing on each subject from in front and then beyond focus. This gives me a number of problems. I would never sell a lens in this state. All my other lenses are a picture of razor sharp delight on my M9 so I do not want Solms tinkering with my M9. Do I just keep sending the 90 by to Solms until they get it right. Would you do a series of bench tests to get a very complete understanding of the issues. Should I try the 90 on my MP and see if those results are sharp, or would that just open up more questions. Frankly I am so delighted with my 28/35/50 Crons I would not care if I never saw this troublesome lens again. Thank you so much, as ever, for your help. Ian
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I've been trying, without success, to find out how many of the Chrome 90mm apo Summicron ( 11885 ) where produced. I believe they where made between 2003 to 2005. Could anyone suggest a method of finding out? Thanks .
