I am considering using my Nikon D5300 DSLR for some video work to compliment my existing HD camera set up. I was just wondering if I got hold of an Atomos Ninja Star Recorder would I be able to bypass the 10 minute (at highest quality) limit for recording? The D5300 allows me to use the HDMI output but not having any external drive to try it I can't experiment but don't want to go and spend money if it won't work.
The D5300 is one of the supported cameras for the Ninja Star, so yes, it should record as long as there's space on the card. The record time limit is only for internal camera recording. Using a field recorder the camera is only sending the signal out and it will do so as long the camera battery lasts.