lets say switching on the cam with LCD on all the way for 1 full hr
switching cam on for 15 mins, then off for 5 mins, then on for another 15 mins, then off for 5 mins, until it reached 1 full hr (doesn't incl the 5 mins off time)
assuming the cam doesnt use mechanic extruding zoom lens ie. pana fz30
no flash used & amount of photos taken is equal at the end of session.