ZeissFan
Veteran
I just got an interesting Bay 1 set on eBay--there's a Rolleiparkeil and two Carl Zeiss Jena Proxar 1. I'm guessing the Zeiss Jena Proxars will be fairly decent, though probably not up to Rollei standards.
This would be a wrong assumption. Carl Zeiss has always prided itself on producing top-quality products and has production standards that are second to none. Leica is on equal footing when it comes to attempting to produce the highest-quality optics possible.
If anything, Rollei's standard slipped, particularly in the 1980s when it comes to its line of 35mm SLRs and the Rollei B35/C35/35LED and the somewhat sketchy Rollei XF 35. Even the Rollei 35 models were cheapened when Rollei decided to use a synthetic gear -- which was easily damaged -- in the film advance.