have a few requirements of a new camera. can anyone point me in the direction of something which fits this bill -
* under 100 pounds
* medium to large screen
* high optical zoom
* timed exposure (ie exposure for a minute or whatever to take photos of stars)
* lithium battery
* instant shutter realease (camera i'm currently using has a second delay between pushing button and shutter opening which allows for hand movement / blur.)
if there are any other necessary qualities for a basic functioning camera i'd be glad to hear them. models which fit the bill appreciated.