Shooting in the cool of the evening recently with the istD I changed from the 24-90FA to the 85mmFA* to keep my shutter speed up.. (already at iso3200). Disaster!... there was no indication of aperture... and the lens refused to autofocus.. changing to the 50mm 1.7 allowed me to continue and indeed I have taken around 50 more shots with the 50mm and the 24-90. Though both the 85mm and a recently acquired 24mmFA* refused to function. This morning the battery meter showed low for the first time and autofocus failed with the 24-90. Well, as you can probably guess, changing the batteries has restored full function even with the 85mm.. So it would seem that the mechanisms of the larger FA* lenses require quite a bit more power than the lesser optics to the point where they act as an early warning of battery life...More glass, heavier gearing I guess.
OH and how many shots has my first set of batts given? A quick count of the saved files gives a figure of around 770, not many with flash but the fisrt 100 or so with an 340Mb microdrive, the rest with Lexar 40x, and I do not use the review screen that much. A set of lithiums costs around UK £15 so that's a bit less than 2pence (one centUS) a shot. Pressing the shutter on a *istD is a pretty cheap thrill!!! Tom A ____________________________________________________________ Yahoo! Messenger - Communicate instantly..."Ping" your friends today! Download Messenger Now http://uk.messenger.yahoo.com/download/index.html