My apologies... my information may have been incorrect. Here is some information about why you would not want to set the Mavic to infinity very often:
People keep asking how to keep the Mavic focused on infinity. Actually if you focus on infinity, you most likely will get poor results from the Mavic camera. For those that understand photography, you all ready know that every lens at a given aperature has what they call a hyperfocal distance. In landscape photography, where you want as much as possible in focus, you will focus at the hyperfocal distance and then everything at some distance in front of that distance all the way to infinity will be in focus. An example of this would be on a certain 28mm lens with the aperture set to f/11, the hyperfocal distance is about 4 yds (3.7 meters). So you would focus the camera at that distance, and then everything from about 2 yds to infinity would be in focus. If you were to actually set the focus to infinity, a lot of the scene at distances getting closer to the camera would be out of focus.
I do not know what the hyperfocal distance of the Mavic camera is, (but the depth of field is rather large) but it is very safe to say that you would want to actually focus on something more in the neighborhood of 20-30 yards out and then everything from say 15 yards to infinity would be in focus. When I get my Mavic, I plan on experimenting to try and figure out what the actually hyperfocal distance is, with how small it is, and considering that it has a rather large depth of field, it will be very forgiving. But for best results, don't try to focus on infinity, set your focus on something much closer. Experiment and find out what works best.