[PRODIG] Occasional 1ds focus problem

[Bob Croxford]

I have just been editing a batch of pictures taken when the battery on 
my 1ds was flashing 'flat'. However I was still able to take pictures 
and they recorded on the CF card OK. Viewing on screen at 100% I can 
see that many of the frames are not sharp all over despite the shutter 
speed of 1/500. Others are focussed well forward despite my technique 
of checking focus on Auto and then turning to manual.

Is this, as I suspect, a problem related to the nearly flat battery? Or 
is it something else? How can I foretell how much power I have left? 
Batteries have gone flat at anything between 225 and 400 exposures 
depending on the speed of shooting. Do I simply change after every two 
1GB CF cards?

About 1,000 frames since are as sharp as they should be.
Thanks in advance
Bob Croxford
===============================================================
GO TO http://www.prodig.org for ~ GUIDELINES ~ un/SUBSCRIBING ~ ITEMS for SALE