Douglas,

As this camera has the Pentax/Praktica universal threaded mount and not a specific/dedicated Mamiya mount, you can open your search for lenses and extension rings from other manufacturers. For more information, please see Ron Herron's excellent site at http://herron.50megs.com/index.htm

By Douglas FItz on Thursday, May 27, 2004 - 09:57 pm:

I want to buy the set of 4 rings that allow the 500dtl to get really close to objects being photographed. I would like to find a wide angle lens also.

And i need instruction & service manuals for both camera's

My 1000dtl camera is missing the button release on top of the advance lever.