Intervalometer shutting down - 6D

Apologize if this has been addressed before!

I was trying to do night sky shooting in southern NJ a few weeks ago, using one of the basic intervalometers with LCD I bought from Amazon.

I believe I set my intervalometer to take a shot every 45 seconds, for ~200 shots. My composition was set, and I was shooting in manual mode on the 6D. When I looked at my camera after time had passed, it simply stopped taking shots after 2 or 3 frames. The battery in the camera was fine, and the battery in my remote seemed to have juice also. The camera was still fully functionable, but had gone to sleep from lack of activity.

Any idea what could have gone wrong? Do I need to turn off Long Exposure Noise Redux?

Set camera to "Bulb" mode and yes, turn Long Exposure Noise Reduction off. Noise is best dealt with in post process and you'll avoid considerable lapse between exposures as well.

Nighthound wrote in post #17496675
Set camera to "Bulb" mode and yes, turn Long Exposure Noise Reduction off. Noise is best dealt with in post process and you'll avoid considerable lapse between exposures as well.

Thanks! MLU on or off?

davebreal wrote in post #17496804
Thanks! MLU on or off?

I use Mirror lock but it requires hitting the switch twice, once to lock mirror and the second to activate exposure. Try shooting with and without Mirror Lock, if you notice no difference then I'd go without for simplicity.

I use mirror lockup with mine but using the two second timer on the camera trips the shutter for me when using my intervalometer.

Try a fresh battery in the remote. I know you said it seems to have juice but I've found mine to be pretty sensitive to old batteries.

You don't mention what camera, but I have had trouble with some of the cheaper N3 connectors keeping good contact. I check those for good connection at the start then tape the wire so it can't move. Vello makes one that the connector is replaceable for different cameras the ends are inexpensive and good quality so I have been buying those to replace bad ends with.

Niteclicks wrote in post #17520134
You don't mention what camera, but I have had trouble with some of the cheaper N3 connectors keeping good contact. I check those for good connection at the start then tape the wire so it can't move. Vello makes one that the connector is replaceable for different cameras the ends are inexpensive and good quality so I have been buying those to replace bad ends with.

6D.