Archived posting to the Leica Users Group, 2009/01/18
[Author Prev] [Author Next] [Thread Prev] [Thread Next] [Author Index] [Topic Index] [Home] [Search]That F2 stop on the 4th 'cron is a bit soft. I personally like my lenses useable through most of their range starting at wide open, from where I tend to shot quite a bit. But no, it doesn't mean I'll be getting rid of the lens anytime soon. sd On Jan 18, 2009, at 8:45 AM, Seth Rosner wrote: > The only negatives of the 35/2,8 Summaron are the sacrifice of one- > stop of speed and the slight field curvature that was the penalty > the design team accepted in reducing astigmatism, lateral color and > other aberrations, and reducing distortion virtually to zero, quite > unusual in a wide-angle lens (Erwin Puts reported that the Summaron > has no distortion). Really quite extraordinary in a lens that was > introduced 51 years ago! There's an article coming that will > include another favorite, the 60/2,8 Macro-Elmarit > > Seth > > ----- Original Message ----- From: "Robert Meier" > <robertmeier@usjet.net> > To: "Leica Users Group" <lug@leica-users.org> > Sent: Sunday, January 18, 2009 11:14 AM > Subject: Re: [Leica] FS 35mm Summicron > > >> And I just did read it off the CD and the results Seth reports are >> really quite amazing. The Summaron f2.8 has resol,ution figures as >> good as the first Summicron and better than the 4th, the pre- >> asph! I wish Seth that you had also included the results from the >> 50mm Summicron and the Alpa 50 that you mention you tested at the >> same time. >> >> Bob >> >> On Jan 18, 2009, at 9:30 AM, Slobodan Dimitrov wrote: >> >>> And joining the LHSA will get you a CD of all the past issues, >>> minus the very last ones. But I'm sure an appendix will be on its >>> way eventually. >>> sd >>> >>> >>> On Jan 18, 2009, at 6:56 AM, Seth Rosner wrote: >>> >>>> Actually Steve, I've never used the pre-ASPH Summicron but have >>>> heard the same things you have. The 35mm that I use is the 35/2,8 >>>> Summaron that we tested vs. the pre-ASPH and the 8-element >>>> Summicrons on the Optikos Corporation MTF optical test bench; see >>>> the article in LHSA Viewfinder magazine, Vol 37 No 4 (4th qtr 04). >>>> Showed pretty clearly that if you don't need the added stop of >>>> speed, the Summaron was the choice. >>>> >>>> I'd attach a copy of the manuscript but I think Brian's software >>>> strips away attachments >>>> >>>> Seth >>>> >>>> Seth >>>> >>>> ----- Original Message ----- From: "Steve Barbour" >>>> <kididdoc@cox.net> >>>> To: "Leica Users Group" <lug@leica-users.org> >>>> Sent: Sunday, January 18, 2009 8:57 AM >>>> Subject: Re: [Leica] FS 35mm Summicron >>>> >>>> >>>>> >>>>> On Jan 18, 2009, at 6:36 AM, Seth Rosner wrote: >>>>> >>>>>> All different optical designs. All are Gauss derivatives. #1 is >>>>>> an 8- >>>>>> element, #2 and 3 are 6-element with slight differences (in #2 >>>>>> the >>>>>> second and third elements are cemented together whereas in #3 >>>>>> they >>>>>> are separated by air, sometimes called an "air lens" for the >>>>>> different refracting effect of air vis-a-vis glass, and #4, >>>>>> frequently referred to as the "pre-aspheric", is 7-element with >>>>>> elements 2 & 3 and elements 6 & 7 cemented together. >>>>> >>>>> some love especially #4, calling it the bokeh king. >>>>> >>>>> I love that lens... what are your thoughts Seth? >>>>> >>>>> Steve >>>>> >>>>> >>>>> >>>>>> If you're really interested in this stuff, Erwin Puts' book, >>>>>> "Leica >>>>>> Lens Compendium" is an excellent resource, though in it Erwin >>>>>> occasionally expresses opinions with which I have disagreed >>>>>> publicly. Seth >>>>>> >>>>>> ----- Original Message ----- From: "Robert Meier" >>>>>> <robertmeier@usjet.net >>>>>> > >>>>>> To: "Leica Users Group" <lug@leica-users.org> >>>>>> Sent: Saturday, January 17, 2009 7:37 PM >>>>>> Subject: Re: [Leica] FS 35mm Summicron >>>>>> >>>>>> >>>>>>> They both have the full ring, serrated over about 270 degrees >>>>>>> of it, >>>>>>> the aperture numbers the rest of the way. So, they are BOTH >>>>>>> version >>>>>>> 3 -- that is surprising, good news. But all four versions are >>>>>>> the >>>>>>> same optically, aren't they? Bob >>>>>>> >>>>>>> On Jan 17, 2009, at 6:30 PM, Seth Rosner wrote: >>>>>>> >>>>>>>> Bob, I've just taken a look at Erwin Puts' book and see that he >>>>>>>> puts the intro of version 3 in 1971 that would make both of >>>>>>>> your >>>>>>>> lenses version 3's. One other way to determine to which group >>>>>>>> your >>>>>>>> earlier lens belongs is ask if the diaphragm is controlled by a >>>>>>>> small tab that protrudes from the lens mount or by a more >>>>>>>> typical >>>>>>>> ring. If the former, it is version 2, if the latter, they're >>>>>>>> both >>>>>>>> version 3. >>>>>>>> >>>>>>>> ----- Original Message ----- From: "Robert Meier" >>>>>>>> <robertmeier@usjet.net> >>>>>>>> To: "Leica Users Group" <lug@leica-users.org> >>>>>>>> Sent: Saturday, January 17, 2009 6:12 PM >>>>>>>> Subject: Re: [Leica] FS 35mm Summicron >>>>>>>> >>>>>>>> >>>>>>>>> My other Summicron 35 is 2619853, which the list puts as >>>>>>>>> only a >>>>>>>>> year >>>>>>>>> newer (thanks Arche), but this one is mint. I thought the >>>>>>>>> newer >>>>>>>>> one >>>>>>>>> is version 3, but now I'm not sure. >>>>>>>>> Bob >>>>>>>>> >>>>>>>>> On Jan 17, 2009, at 3:24 PM, Seth Rosner wrote: >>>>>>>>> >>>>>>>>>> Same series (version), Bob? >>>>>>>>>> >>>>>>>>>> ----- Original Message ----- From: "Robert Meier" >>>>>>>>>> <robertmeier@usjet.net> >>>>>>>>>> To: "Leica Users Group" <lug@leica-users.org> >>>>>>>>>> Sent: Saturday, January 17, 2009 4:10 PM >>>>>>>>>> Subject: Re: [Leica] FS 35mm Summicron >>>>>>>>>> >>>>>>>>>> >>>>>>>>>>> Seth, >>>>>>>>>>> >>>>>>>>>>> That's a very impressive story, both about how well built a >>>>>>>>>>> Leica >>>>>>>>>>> lens is, and how good the Leica New Jersey service is/ >>>>>>>>>>> was. I >>>>>>>>>>> should >>>>>>>>>>> reconsider selling this lens, except I have another one >>>>>>>>>>> that is >>>>>>>>>>> newer >>>>>>>>>>> and is even nicer! >>>>>>>>>>> >>>>>>>>>>> Bob >>>>>>>>>>> >>>>>>>>>>> On Jan 17, 2009, at 12:37 PM, Seth Rosner wrote: >>>>>>>>>>> >>>>>>>>>>>> Hi Bob, the lists I have show that your 35/2 Summicron is >>>>>>>>>>>> from >>>>>>>>>>>> 1972 >>>>>>>>>>>> production that commenced at #2503101 through 2556500. I >>>>>>>>>>>> believe >>>>>>>>>>>> that Steve's serial numbers refer only to cameras. I bought >>>>>>>>>>>> one of >>>>>>>>>>>> these lenses shortly after their introduction in 1969 or >>>>>>>>>>>> 70. >>>>>>>>>>>> Was in >>>>>>>>>>>> my kit for a four-week visit to South and East Africa = >>>>>>>>>>>> 700+ >>>>>>>>>>>> Kodachromes. >>>>>>>>>>>> >>>>>>>>>>>> One afternoon in our hotel room in Nairobi after returning >>>>>>>>>>>> from an >>>>>>>>>>>> 8-day tour of the Serengeti, I put down my M4 w/ 35/2 >>>>>>>>>>>> Summicron >>>>>>>>>>>> attached to answer the phone. I had forgotten to twist the >>>>>>>>>>>> lens to >>>>>>>>>>>> full lock. When I picked it up, the lens plunged onto a >>>>>>>>>>>> tile >>>>>>>>>>>> floor, >>>>>>>>>>>> bending the rear flange. I literally burst into sweat, >>>>>>>>>>>> told my >>>>>>>>>>>> wife >>>>>>>>>>>> that I had to go for a short walk to calm down. Returned to >>>>>>>>>>>> hotel >>>>>>>>>>>> room, looked once again at bent flange, shook lens >>>>>>>>>>>> vigorously to >>>>>>>>>>>> ascertain if there were loose glass elements, diaphragm >>>>>>>>>>>> blades >>>>>>>>>>>> or >>>>>>>>>>>> other un-Leica-like anomalies, etc, tried it on the M4 to >>>>>>>>>>>> which it >>>>>>>>>>>> seemd to mate as usual. Had no back-up 35mm so used it >>>>>>>>>>>> balance >>>>>>>>>>>> of >>>>>>>>>>>> the trip. On return to NYC, I called Vince Fochtman, the >>>>>>>>>>>> lens >>>>>>>>>>>> guy >>>>>>>>>>>> at Leitz/Rockleigh whom I knew pretty well, told him the >>>>>>>>>>>> story >>>>>>>>>>>> and >>>>>>>>>>>> said I was sending him the lens; if there was damage to the >>>>>>>>>>>> glass >>>>>>>>>>>> or mechanicals that could not be made perfect, please just >>>>>>>>>>>> return >>>>>>>>>>>> the lens with a bill and I would sell it and find another; >>>>>>>>>>>> if it >>>>>>>>>>>> could be made optically and mechanically flawless despite >>>>>>>>>>>> cosmetic >>>>>>>>>>>> flaws, please repair the lens. A week passed, my lens >>>>>>>>>>>> returned >>>>>>>>>>>> with >>>>>>>>>>>> a Leitz invoice that had no charge. I called Vince and >>>>>>>>>>>> inquired. He >>>>>>>>>>>> said the lens was fine, glass clean, clear, not >>>>>>>>>>>> decentered a >>>>>>>>>>>> micron, just as good as it had come from Wetzlar; he had >>>>>>>>>>>> been >>>>>>>>>>>> able >>>>>>>>>>>> very gently and little by little to bend the bent- out-of- >>>>>>>>>>>> shape >>>>>>>>>>>> flange into perfect alignment, didn't need any parts, so no >>>>>>>>>>>> charge! >>>>>>>>>>>> Talk about robust fortress-like construction! I would >>>>>>>>>>>> like to >>>>>>>>>>>> think >>>>>>>>>>>> that current production is just as strong. Who knows? >>>>>>>>>>>> >>>>>>>>>>>> Enjoy your Summicron! >>>>>>>>>>>> >>>>>>>>>>>> Seth >>>>>>>>>>>> >>>>>>>>>>>> Seth >>>>>>>>>>>> >>>>>>>>>>>> ----- Original Message ----- From: "Robert Meier" >>>>>>>>>>>> <robertmeier@usjet.net> >>>>>>>>>>>> To: "Leica Users Group" <lug@leica-users.org> >>>>>>>>>>>> Sent: Saturday, January 17, 2009 11:19 AM >>>>>>>>>>>> Subject: Re: [Leica] FS 35mm Summicron >>>>>>>>>>>> >>>>>>>>>>>> >>>>>>>>>>>>> Seth, >>>>>>>>>>>>> >>>>>>>>>>>>> Thanks for that confirmation. Where can I go to check >>>>>>>>>>>>> the >>>>>>>>>>>>> serial >>>>>>>>>>>>> numbers of lenses? All I know about is Stephen Gandy's >>>>>>>>>>>>> lists of >>>>>>>>>>>>> body serial numbers. >>>>>>>>>>>>> >>>>>>>>>>>>> Thanks, >>>>>>>>>>>>> Bob >>>>>>>>>>>>> >>>>>>>>>>>>> >>>>>>>>>>>>> On Jan 17, 2009, at 7:06 AM, Seth Rosner wrote: >>>>>>>>>>>>> >>>>>>>>>>>>>> it is indeed the second version >>>>>>>>>>>>>> >>>>>>>>>>>>>> ----- Original Message ----- From: "Robert Meier" >>>>>>>>>>>>>> <robertmeier@usjet.net> >>>>>>>>>>>>>> To: "Leica Users Group" <lug@leica-users.org> >>>>>>>>>>>>>> Sent: Friday, January 16, 2009 8:02 PM >>>>>>>>>>>>>> Subject: Re: [Leica] FS 35mm Summicron >>>>>>>>>>>>>> >>>>>>>>>>>>>> >>>>>>>>>>>>>>> I have a 35mm Summicron, pre-aspheric, that shows wear >>>>>>>>>>>>>>> on the >>>>>>>>>>>>>>> barrel >>>>>>>>>>>>>>> (no dents or dings) and has mint glass. With both >>>>>>>>>>>>>>> caps. I >>>>>>>>>>>>>>> think it >>>>>>>>>>>>>>> is 2nd version, but I'm not sure. The serial number is >>>>>>>>>>>>>>> 2541855, >>>>>>>>>>>>>>> $750 >>>>>>>>>>>>>>> >>>>>>>>>>>>>>> _______________________________________________ >>>>>>>>>>>>>>> Leica Users Group. >>>>>>>>>>>>>>> See http://leica-users.org/mailman/listinfo/lug for more >>>>>>>>>>>>>>> information >>>>>>>>>>>>>> >>>>>>>>>>>>>> >>>>>>>>>>>>>> --------------------------------------------------------- >>>>>>>>>>>>>> -- ----- -- -- -- ---------- >>>>>>>>>>>>>> >>>>>>>>>>>>>> >>>>>>>>>>>>>> >>>>>>>>>>>>>> No virus found in this incoming message. >>>>>>>>>>>>>> Checked by AVG - http://www.avg.com >>>>>>>>>>>>>> Version: 8.0.176 / Virus Database: 270.10.8/1898 - >>>>>>>>>>>>>> Release >>>>>>>>>>>>>> Date: >>>>>>>>>>>>>> 1/16/2009 3:09 PM >>>>>>>>>>>>>> >>>>>>>>>>>>>> >>>>>>>>>>>>>> _______________________________________________ >>>>>>>>>>>>>> Leica Users Group. >>>>>>>>>>>>>> See http://leica-users.org/mailman/listinfo/lug for more >>>>>>>>>>>>>> information >>>>>>>>>>>>> >>>>>>>>>>>>> >>>>>>>>>>>>> _______________________________________________ >>>>>>>>>>>>> Leica Users Group. >>>>>>>>>>>>> See http://leica-users.org/mailman/listinfo/lug for more >>>>>>>>>>>>> information >>>>>>>>>>>> >>>>>>>>>>>> >>>>>>>>>>>> ----------------------------------------------------------- >>>>>>>>>>>> -- ----- -- -- ---------- >>>>>>>>>>>> >>>>>>>>>>>> >>>>>>>>>>>> >>>>>>>>>>>> No virus found in this incoming message. >>>>>>>>>>>> Checked by AVG - http://www.avg.com >>>>>>>>>>>> Version: 8.0.176 / Virus Database: 270.10.8/1898 - Release >>>>>>>>>>>> Date: >>>>>>>>>>>> 1/16/2009 3:09 PM >>>>>>>>>>>> >>>>>>>>>>>> >>>>>>>>>>>> _______________________________________________ >>>>>>>>>>>> Leica Users Group. >>>>>>>>>>>> See http://leica-users.org/mailman/listinfo/lug for more >>>>>>>>>>>> information >>>>>>>>>>> >>>>>>>>>>> >>>>>>>>>>> _______________________________________________ >>>>>>>>>>> Leica Users Group. >>>>>>>>>>> See http://leica-users.org/mailman/listinfo/lug for more >>>>>>>>>>> information >>>>>>>>>> >>>>>>>>>> >>>>>>>>>> ------------------------------------------------------------- >>>>>>>>>> -- ----- -- ---------- >>>>>>>>>> >>>>>>>>>> >>>>>>>>>> >>>>>>>>>> No virus found in this incoming message. >>>>>>>>>> Checked by AVG - http://www.avg.com >>>>>>>>>> Version: 8.0.176 / Virus Database: 270.10.8/1898 - Release >>>>>>>>>> Date: >>>>>>>>>> 1/16/2009 3:09 PM >>>>>>>>>> >>>>>>>>>> >>>>>>>>>> _______________________________________________ >>>>>>>>>> Leica Users Group. >>>>>>>>>> See http://leica-users.org/mailman/listinfo/lug for more >>>>>>>>>> information >>>>>>>>> >>>>>>>>> >>>>>>>>> _______________________________________________ >>>>>>>>> Leica Users Group. >>>>>>>>> See http://leica-users.org/mailman/listinfo/lug for more >>>>>>>>> information >>>>>>>> >>>>>>>> >>>>>>>> --------------------------------------------------------------- >>>>>>>> -- ----- ---------- >>>>>>>> >>>>>>>> >>>>>>>> >>>>>>>> No virus found in this incoming message. >>>>>>>> Checked by AVG - http://www.avg.com >>>>>>>> Version: 8.0.176 / Virus Database: 270.10.8/1898 - Release >>>>>>>> Date: >>>>>>>> 1/16/2009 3:09 PM >>>>>>>> >>>>>>>> >>>>>>>> _______________________________________________ >>>>>>>> Leica Users Group. >>>>>>>> See http://leica-users.org/mailman/listinfo/lug for more >>>>>>>> information >>>>>>> >>>>>>> >>>>>>> _______________________________________________ >>>>>>> Leica Users Group. >>>>>>> See http://leica-users.org/mailman/listinfo/lug for more >>>>>>> information >>>>>> >>>>>> >>>>>> ----------------------------------------------------------------- >>>>>> -- ------------- >>>>>> >>>>>> >>>>>> >>>>>> No virus found in this incoming message. >>>>>> Checked by AVG - http://www.avg.com >>>>>> Version: 8.0.176 / Virus Database: 270.10.8/1898 - Release Date: >>>>>> 1/16/2009 3:09 PM >>>>>> >>>>>> >>>>>> _______________________________________________ >>>>>> Leica Users Group. >>>>>> See http://leica-users.org/mailman/listinfo/lug for more >>>>>> information >>>>> >>>>> >>>>> _______________________________________________ >>>>> Leica Users Group. >>>>> See http://leica-users.org/mailman/listinfo/lug for more >>>>> information >>>> >>>> >>>> ------------------------------------------------------------------- >>>> -- ----------- >>>> >>>> >>>> >>>> No virus found in this incoming message. >>>> Checked by AVG - http://www.avg.com >>>> Version: 8.0.176 / Virus Database: 270.10.8/1899 - Release Date: >>>> 1/17/2009 5:50 PM >>>> >>>> >>>> _______________________________________________ >>>> Leica Users Group. >>>> See http://leica-users.org/mailman/listinfo/lug for more >>>> information >>> >>> >>> _______________________________________________ >>> Leica Users Group. >>> See http://leica-users.org/mailman/listinfo/lug for more information >> >> >> _______________________________________________ >> Leica Users Group. >> See http://leica-users.org/mailman/listinfo/lug for more information > > > ---------------------------------------------------------------------- > ---------- > > > > No virus found in this incoming message. > Checked by AVG - http://www.avg.com > Version: 8.0.176 / Virus Database: 270.10.8/1899 - Release Date: > 1/17/2009 5:50 PM > > > _______________________________________________ > Leica Users Group. > See http://leica-users.org/mailman/listinfo/lug for more information