Hi Jon,
I use a QuickPod-model DSLR and I LOVE IT! All you need to make it compatible is the Tripod attachment from GoPro. I can extend it about 5 feet which lets me get close up video of some skiddish aquatic life and I can easily fit myself in the picture/video frame. Some advice with using poles that I have learned the hard way, it is not a great thing to bring on beach dives with lots of turbulent sand. I have found that sand gets into the grooves of the pole and it is hard to adjust. Right now, I cannot adjust the knob at the top which adjusts the angle so I have to change the angle using the GoPro instead (hope that makes sense, I don't know how to put it another way). Lastly, the wrist lanyard isn't too durable so I would zip tie it on so it doesn't break off. Overall, I really like mine. I think SeaLife also sells the EXACT same thing for around $70, you can also buy it on Amazon.com.
Gopro Telescopic Pole Mounts For Cameras, Tripods & Diving