Let the hive mind of Engadget get that for you.
"We need a digital camera that can be switched on and fire off that first shot fast. It's not a commonly tracked statistic on any review site, and nobody seems to have this information for every camera. We were hoping other readers could inform us as to what small digital cameras can fire off their first pics in under a second (ideally under half a second). It needs to be small, but mostly, just really quick in operation. Thanks!"
In the I6500u which is the galaxy lite, I believe that the U is for US and 850/1900 is that att or t-mobile I think its att right .Can someone let me know if I'm on point here or if I'm off base, thanks.