Originally posted by: fuzzybabybunny
Originally posted by: Gobadgrs
WTF! My camera didn't save any pictures from the last 20 minutes. The only change I made during that time was to turn mirror lockup on.
What I also don't understand is, I switched to AV for the heck of it, and focused the centerpoint right on the moon. The viewfinder would tell me that it was going to be a 6 or 10 second exposure and it would seem like the shutter was open for 30 seconds.
I wonder if the cold was part of the problem... its 14 degrees here right now...
I put the camera back in the bag and sealed it as soon as I got inside to prevent condensation, but any ideas why the camera would stop taking photos like that?
Have you used mirror lock up before? You actually have to press the shutter button TWICE.
1. You compose and get your settings all figured out.
2. First shutter press lifts up and LOCKS UP the mirror. You should hear the mirror slapping up.
3. Wait for the mirror slap vibration to dissipate.
4. Second shutter press actually takes the picture.
5. If you set it on something like 10 seconds, 10 seconds after you press the shutter a second time you should hear the mirror slapping back down.
Sometimes when you're cold and not paying attention you can lose track of the shutter presses. You think you've pressed it a second time but you're actually still on the first press... which would explain why it would seem like it's been open for 30 seconds.
Don't use any of the automatic modes like aperture or shutter priority because the moon (or rather, the darkness around the moon) fools the camera's metering all the time. Always use manual mode. A 6-10 second exposure wouldn't have worked anyway. The moon is a very bright object in relation to this shutter speed and if the picture had come out it would have just been a solid white overexposed object.
Naw, the cold wouldn't really do anything. Once you start going into the negatives the operation of the menu commands can get a bit sluggish though.