Leki Aergon Photo Adapter
Price Paid: $29
I had some difficulty installing the photo adapter because the tool provided is too flimsy to remove the pin that secures the top of the grip. I resorted to using a small screwdriver to push the pin out so I could replace the standard grip top with the photo adapter top.
Other than that the photo adapter works as advertised, but only if you can get the pole to stand by itself. It will work in soft dirt, sand, snow and rocky places where you can wedge the pole in. It's fine for point and shoot digital cameras but I would not put the weight of an SLR on it. If you do you might just end up wishing you hadn't.
Lastly, the camera mount section that screws into the pole is small and could easily be lost so you need to keep it in a secure place. I like this photo adapter for its convenience but I still carry a lightweight Monfrotto tripod in my pack.