http://arch.ced.berkeley.edu/kap/images/t4super.jpg

 

http://harrysproshop.com/G2/ContaxG2.JPG

 

I'm sorry but there's no digital equivalent to these. They're trying to do it with the micro four third cameras but some of those don't even have viewfinders, I tried out a friends Canon G11 and you don't even get 100% coverage from the viewfinder, whats up with that? I think maybe a lightweight Sony DSLR with a Zeiss lens but if you go with a wide lens thats a lot of weight.

 

 

http://www.adventuresinastrophotography.com/images/astronomy-equipment/Sony-DSC-F717-Digital-Camera.jpg