5d3 Timelapse. Should i lock up the mirror?

[Kankalin]

Hi

I'm about to make a timelapse movie (dawn, dusk and stary night) next week, using a 5d mkIII. But im considered about the helth of the machine, dont want to waste mirror count.

So i was thinking about using mirror lock up function to save the mirror mechanism.
Does it worth it? Should i be considered about the sensor (continous lights) instead? Is there any dangers, disadvantages?

So im looking for someones experience in this field.

Thanks

 

[Mt Spokane Photography]

You still need to let the mirror come down in order to take a second exposure. Mirror lockup is just for one image.