Contax System Information

The Zeiss Data Sheet Download Page – Downloadable data sheets for the Zeiss lens range.

The Contax UK page – There’s a ton of info available about the lens rand and late model cameras

The Photography in Malaysia page on the RTS System


Tom Shea’s 1998 overview of many Zeiss/Contax lenses at (lots of good comments on this page)

Forum Threads

A Long and informative Thread at (There are however a couple of inaccuracies e.g. my 300/4 MMG shouldn’t exist if everything here was true).

An Epic Thread at but be aware that there are a ton of inaccuracies here on the detail of the AE/MM business.

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