I do not have a digital camera, yet. With a good set of Zeiss Contarex lenses, I would like to explore the possibility of getting an adapter to mate those lenses to a DSLR. I know there are some being made for the Olympus cameras, selling on Ebay. Questions: 1. Is there a supplier of adapters for other cameras; especially Canon and Nikon? I am especially looking for a DSLR with a larger sensor. 2. What are the disadvantages of using film camera lenses on a DSLR? I assume that auto exposure would not be operative. Please correct me if I am wrong, and point out other disadvantages. If exposure adjustment is manual, how difficult is it to set a non-matching lens to the correct aperture, or change the exposure time to make a good exposure with a DSLR? 3. A chart of sensor sizes shows the EOS 1D as having a 28.7mm x 19.1mm sensor. Is this the largest currently made, except fot a "full frame dslr"? I understand the full frame cameras are extremely expensive. Besides the EOS 1D, are there others that have a similar size sensor? I appreciate your answers and suggestions.