Interval timer quitting early

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Articsnapper

New member
Last night my D7100 quit taking pictures after two hours when it should have run for at least eight. The battery is at 75% and 1k pictures still available on the card.

Camera settings
- interval timer set to 999 at 1 minute intervals
- all noise related settings turn off -- hot spots aren't an issue at 10 degrees
- it was under aperture control with 5 sec exposure when it quit

Anyone have an ideas on what happened?


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pforsell

Senior Member
It seems like a camera glitch to me. All the settings are reasonable and there's plenty of buffer time too.

The interval length is the full cycle time, containing shutter release + exposure time + shutter close + possible long exposure NR time + card write time + maybe 1 second extra time just to be sure, and the remaining time is gap between shots.

Here you have:
* 0.1 sec shutter open
* 5 sec exposure
* 0.1 sec shutter close
* no long exp NR = 0 sec
* 2 sec write time
* 1 sec extra
* ... and only 1 shot per interval

This is only 8.2 sec in total, way below the 60 sec interval you have set. Camera glitch is the only explanation with these settings. :(

There are a couple of settings that can cause problems in some cameras, for example self-timer and mirror up modes, but I believe these are not compatible with D7100 interval shooting. Please double check that the lens is firmly in manual focus mode, because the camera tries to re-focus before every shot in AF mode. No focus, no shot.
 
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