crop camera and FF difference?

[gunawan]

Hello seniors,

I've tried out similar lens on a crop body (40/50d) and a FF (5d), and realised for the same settings, ie ISO, TV,AV, the FF is so much brighter and sharper!!! Is it just me or that is the DIFFERENCE btw FF and crop cameras?

Looks like FF is the way to go bcos low light conditions sux big time on crop cameras (without flash, as I'm a non flash guy).

Any seniors care to comment? Many thanks. 

[victor]

Brighter yes, but sharper....depends on how you shoot. FF or crop serve different purpose.