Been out in the French Alps this Winter testing out the Nikon D7000 with a new mount, the Opteka XGRIP-XL for DSLRs:
Thanks to it’s moulded plastic material, it’s lighter than it looks which is a plus for carrying but I noticed it had a little too much flex for my Nikon. The plastic ‘feet’ on the bottom also snapped off quite easily but they aren’t crucial.
The frame doesn’t do much to increase stability apart from allowing you to bolt the camera down to the grip and use your own frame to keep the tracking smooth. I found it fine for filming skiing but for other, more bumpy sports it wouldn’t be great.
It’s pretty darn cheap so the value is amazing for what you get, I paid about £20 for it.
Here’s a video taken with it without any stabilisation added: