If you typically don't
need mount points on the
sides of your camera, you might consider the following
instead of a cage:
Wooden Camera BMCC Mini-Baseplate:
http://woodencamera.com/Blackmagic/Came ... e-BMC.htmlThis baseplate is very small & light, but looks very strong. It allows for rod clamps to be mounted both at the front & back. This flexibility makes it easy to configure the baseplate with front-mounted rods to support a matte box, follow focus, etc. Or, add rods on the rear of the baseplate to configure your own shoulder mount. I plan to do both.
RedRock BMCC ultraPlate Top Plate
http://store.redrockmicro.com/Catalog/u ... ema-cameraActually, I've already had a machinist make me an even smaller, custom top plate as a substitute for the RedRock ultraPlate. The custom plate's dimensions are such that when combined with a rod clamp will securely position a pair of rods exactly 85mm above the lens center axis (rod-center to lens-center). This gives me the option of top-mounting a matte box, follow-focus or other gear from above the lens instead of or in addition to the more common lower mounting position. The height (dimension) that a custom plate needs to be will vary depending on the dimensions of the particular rod clamp you use, so once you have a rod clamp you can specify the height for your custom plate. Cost me about $30 to have the custom top plate machined.
Info about rod standards:
http://www.ocon.com/labs/rod-standards.htmlCheers.