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!"
It is good for animals, in some countries people burn their skin to put some kind of id on their animals.
Infact we are selling lot of tattoo kits in India to put id on their animals
www.tattoogizmo.com