I have one of those 45/2.8 Tessars for my Contax 139 -- it's a great lens and a great combination.
On Mar 21, 2009, at 8:01 PM, Eric Goldstein wrote:
Peter -My recollection is that, like you say, the higher index glass reduced chromatic.Tessars were good lenses from the get-go, but they have certainly been improved over the years. The last 45 mm/2.8 Zeiss Tessars for the Contax were amazing lenses... Eric Goldstein -- On Sat, Mar 21, 2009 at 7:59 PM, Peter K. <peterk727@xxxxxxxxx> wrote:Sanders,I would say #2. I do not think the high index crown lanthanum glass improved the Tessar in terms of resolution. Now I am sure people will argue, but perhaps it improved flare, reduced chromatic aberations, etc. But oldernon-coated Tessars were often superb in terms of resolution. Interesting article here that discusses this in detail. http://www.willbell.com/TM/ChapterB.3.pdfThe quality of the Xenar v. Tessar is not something you'd be able to tellapart in print or transparencies IMO. Enjoy the camera. When is your son due? Peter K--- Rollei List - Post to rollei_list@xxxxxxxxxxxxx - Subscribe at rollei_list-request@xxxxxxxxxxxxx with 'subscribe' in the subject field OR by logging into www.freelists.org - Unsubscribe at rollei_list-request@xxxxxxxxxxxxx with'unsubscribe' in the subject field OR by logging into www.freelists.org- Online, searchable archives are available at //www.freelists.org/archives/rollei_list
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