The D50 is 90% of the D70 and D70s for a lower price. I have the blow-by-blow list further down. Otherwise the D50 is pretty much the same as a D70s and thus it's a great camera. The D50 would be an ideal backup since it even takes the same battery and is smaller and lighter than the D100 or D70 or D70, however it uses SD instead of CF cards..



Link: Kenrockwell