Features:

• Compatible with all Canon, Nikon, Sony, Olympus, Pentax, and Samsung SLR cameras that feature a standard 1/4"-20 tripod socket
• Padded professional quality grip strap
• Designed to stabilize a camera when shooting
• Alleviates fatigue during extended sessions

Editor Reviews:

Product Description:
The Opteka padded camera grip wraps around the hand, and is designed to stabilize a camera or camcorder when shooting, and to alleviate fatigue during extended sessions of photography or videography. Compatible with all Canon, Nikon, Sony, Olympus, Pentax, and Samsung DSLR cameras that feature a standard 1/4"-20 tripod socket .

Rating : - You get what you paid for
It is not very secure after I put it on my D80. Or I can't use my right thumb for anything. The lower mount that uses the tripod mount is not secure at all, it moves no matter how I screw it. I took it off and will not use it. It doesn't even worth the effort to return it...