The best position for a video camera is, from my experience, on the detector shaft. The camera doesn’t hinder the operator while hunting and that’s what counts. See the photos: a camera simply mounted on MarsMD shaft. Plus a flashlight attachment.
At the beginning of 2016, MarsMD rolled out its new product – the universal shaft. I also have it, and I am already giving it a try – here’s an already-mounted Garrett AT PRO (see the photos and video). All about the MarsMD shaft is collected here.