There is a variety of diffusion filters available. For example, some only soften the edges of the image while keeping the middle sharp. Diffusion filters are very popular for videotaping weddings. But, as with any good thing, use it sparingly. When using a tripod for videotaping, the camera should be first attached to a mounting head and then attached to the tripod.
Many tripod manufacturers provide various heads to be used with the tripods.
These heads use a spring to control camera movement. They tend to overbalance with very heavy cameras and are not meant for use with large studio cameras. Some of these heads have wedge-mounts. The male wedge is attached to the camera and mounted onto the female slot. To secure the head during shooting, only the pan and tilt locks should be used.