Mark, I would like to buy an Opton Sonnar 85, to mount on my Leica M. I would like to ask if there is a big difference in quality between the post War East German badged Carl Zeiss Jena 85 and the afore mentioned Zeiss version. I know you are an expert in this area so your comment is appreciated. Marvin. --- 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