Originally posted by NaClH2O For a while I was carefully monitoring battery life on my K10D to try to see if the much lower priced third party batteries were a bargin or not. I averaged about 620 "clicks" on the two "pentax brand" batteries I had and about 350 to 400 clicks on the third party batteries. I found absolutely no difference between using 8gb SDHC and 2 gb standard SD cards. I've always used SanDisk "Ultra" or Extreme II cards. What I did find however is that using the battery grip causes a pretty big hit on batter life. After I finally bought the grip my 620 went down to about 550 or lower and the third party batteries dropped to about half that. What I don't know however, is whether or not turning off the grip separately has any effect. In the beginning with the grip (when I was still closely monitoring battery life) I'd frequently forget and leave the grip on while turning the camera off. In addition I found it much more of a hassle to try and monitor two battery positions rather than just one.
NaCl(my conclusion is that the cheap batteries are worth it...but just barely)H2O
The point I was making with my earlier post is that it is going to take a lot more clicks to fill up a 16g card compared to a 2 or 4g card with all other things such as flash and af being equal. To put it another way, filling up one 16g would be equivalent to filling up 4 4g cards. There's no way you can fill up 4 4gic cards and only use the same amount of power required to fill up 1 4g card.
Originally posted by bymy141 I've noticed no difference at all in battery life when using 2, 4, 8 or 16Gb cards.
Perhaps there is something wrong with the card itself, maybe there is dirt between the card connectors shortning out the voltage supply leads?
- Bert
Then you are not filling up the 16g cards. Once again, a 16 gig card will hold more pics than a 4 gig card meaning the camera will be doing 4x the work to fill up that 16g card compared to filling up a 4gig card.