I'm interested with playing around with DOF, and therefore i need a telephoto lens. Any suggestions on what brand of telephoto lens works well with the DVX?
There are some posts about telephoto lenses in this topic. But you don't need one for a shallow DOF. You can use the zoom on the camera, open the iris, and focus manually.
There's only one telephoto lens for the DVX, and that's the Century 1.6 teleconverter. It would definitely help you to get even shallower DOF. Do everything that Jim linked to, but then use the 1.6 as well, and you'll get substantially shallower DOF shots.