joolsb wrote:A Wista 45DX can take a bigger range of lenses (even my 65mm SA) for a lot less weight.
Two words: asymmetric back.  
 
Trust me. If it weighed twice as much I'd still carry my 45SU for that one feature alone.
 
Well actually it does weigh twice as much (as a Chamonix anyway). 
I do agree about the asymettric back though - quite a few people I know have 'dissed' it until they ended up using it 
Things that are 50% better tend to cost 200% more, it's just the way of the world..  If you have the 200% more then the 50% better is worth it 
 
Tim
p.s. vanman
Wista DX -> Bellows 47mm -> 300mm 
45SU -> Bellows 58mm - 365mm
If you want to talk about value for money/weight/usability balance, you won't beat the Chamonix so we've both got the wrong camera