I've never noticed this before but my clock is off by 6-1/2 minutes. I know that the ISS was closest to me last night at 18:59:55 so I wanted to concentrate on frames shot around that time. Looking at the EXIF I noticed that I was off. I can only assume that the clock I set it by was fast and I didn't think about the importance of accuracy.
I figured I could calculate the offset, so went into the menus and noticed (for the first time) that you can't set the seconds. So I'm assuming that to set it correctly you select the minute ahead of the one you are calibrating to and hit OK right as it hits that exact minute. The time input doesn't seem to change with the clock when you are in the menus, so I think this is the correct procedure. I used the U.S. Navel Observatory "Simple Time": http://tycho.usno.navy.mil/simpletime.html -- 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.
