K-x TIPA awards
I would have thought AA's would be an advantage?
The only advantage it has is that you can easily buy new ones if the batteries are out of energy but it doesn't have any disadvantage I know off though...
Btw. why don't Pentax (Hoya) put eneloop rechargeable batteries with the K-X?
Eneloop is from Hoya right so when the customer discover how good they are they often stick with the brand so most likely buy a set extra.
Stefan

K10D, K5
DA* 16-50, DA* 50-135, D-FA 100 Macro, DA 40 Ltd, DA 18-55
AF-540FGZ
Yves (another one of those crazy Canucks)
The only advantage it has is that you can easily buy new ones if the batteries are out of energy but it doesn't have any disadvantage I know off though...
The main disadvantage of AA batteries is changing them under pressure in the field. It's relatively fiddly making sure the polarity is OK, whereas a Li-Ion pack just clips straight into place.
Best regards, John
TWAPSI Blog
On the flip side, it took them about 4 sets of their display AA batteries to get it working for a demo (probably because all were flat!) - some people might have thought the camera was faulty seeing that and said "hmmm...show me the Nikon then..."
The "average" consumers isn't that fussed about being able to change their batteries in the field - it hasn't really harmed Apple's sales to have fixed, hidden, batteries in iPod's/Phones. But... DSLR's aren't really for the "average" consumer anymore...
Still shooting in the dark (literally and metaphorically)...
http://www.tipa.com/english/XX_tipa_awards_2010.php?iExpand1=59
6th Year Apprentice Pensioner

You can buy them virtually anywhere (biggest advantage, outweighs any negative IMHO).
Additonal sets don't cost a fortune (the way genuine Pentax Li-Ion replacements can).
Chargers cost very little.
AA batteries power your flash too, so you can make savings buying bulk.
Eneloop technology has cracked the self-discharge problem.
I take John's point on changing batteries in the field, but once you've done it a couple of times it's a piece of cake.
If you can't say something nice about Pentax, you won't say anything at all.
Apparently.
I was concerned as to whether date etc would be retained when batteries were out as our Fuji was a pain that way - change the batteries and you had to fiddle round and change the date setting immediately . The manual said it was retained - but it wasn't no matter how fast you changed the batteries .
I've had the batteries out of the K-x overnight and date seems to have been saved

let the education continue
proud owner of a couple of cameras and a few bits and bobs

I have to say I'm happy with my AAs - still using the original set of Energizer Lithiums
TI - how many shots is your Kx up to with those batteries? I'm on the originals (same sort), sitting on about 550, going strong but with minimal flash use.
http://www.pbase.com/iberg
KZ
Member
Budapest
http://www.tipa.com/english/award-details.php?iId=1768&sAward=Best+DSLR+Entry+Le...
Or is it a well known old story and I am the only one who did not know?