thanks Stewart & John, they do this for hours at atime so it's easy to get them at all stages of jumps, John the issue with the lens is i keep getting error 99 at full zoom on the tamron, it's ok at the low end and the middle of the zoom, i've tried cleaning the contacts and have been reading up for other solutions on the net, i'm going to try a fully charged battery next time i'm out, although the one that's in the cam just now seems ok it's worth a try i guess