To Ratboy, my answer regarding lenses has to be generic - Sharp & Wide!

To The Flying Camera, I will be shooting on a tripod most of the time. There will be hiking, but no backpacking. No studio shooting. What can you tell me about the quality of the glass for the Mamiya RB and the focal lengths available and finally - never used a waist-level finder - what are the pros and cons.

Thanks for the responses