The most important factor to consider when selecting a Steadicam is the weight of the camera and accessories you wish to use with the Steadicam. Using a Steadicam for a load outside its recommended weight range will result in poor performance.
How to Determine the Load:
Remove all batteries from your camera. The Steadicam battery will provide power to your camera.
Place the camera and all accessories you intend to use on a scale and determine the weight.