I have a Richard Franiec grip on my Sony RX100 and it’s a very nice addition.
Accessory grip for Panasonic Lumix DMC-GM1
Designed specifically for GM1, this grip is a perfect match for the camera’s aesthetics.
The grip combines appealing look of a wraparound design with the great feel of an ergonomically natural shape.
The S-curve finger grove contour guides the hand to a comfortable and effective position, greatly improving balance and handling, especially with larger Micro4/3 lenses.
At about 20 grams, this grip adds very little to the weight of the camera and leaves the entire bottom of the cam (including battery/card door and tripod socket) unobstructed.
Individually 3D CNC machined from high - grade aluminum alloy then glass bead blasted and black anodized, this grip has no compromises for great looks, durability, fit and function.
Available later in January 2014 for $34.95 plus shipping charges.