2008/9/9 AlunFoto <[EMAIL PROTECTED]>: > Gang, > > I've recently dabbled into night photography with exposure times > longer that 30s, using the "B" setting. Whenever I lock the shutter > open, I start worrying about the batteries running out of juice.
> So I have a couple of questions that I hope someone in this > enlightened forum knows the answer to: > > 1. How long exposures can one hope to get from a fully charged battery > for either K10D or K20D (I own both)? In my experience with the K10D 3-5 exposures of around 20 min each (in camera noise reduction disabled on the K10D). The difference in range is because I use cheap 3rd party spare batteries & they don't seem to last as long. I haven't tried any really long exposures with the K20D due to the fact that you can't turn off NR. > 2. With the vertical grip attached, will the camera switch from one > battery to the other during exposure if needed? Yes. > 3. Has anyone made a DIY external power source for their camera, or > have any web pointers? Not I. But I'm sure someone has. :-) Dave -- PDML Pentax-Discuss Mail List [email protected] http://pdml.net/mailman/listinfo/pdml_pdml.net to UNSUBSCRIBE from the PDML, please visit the link directly above and follow the directions.

