Steadicam Arm Rain Cover Black Pro-Mist They are a tool that

They are a tool that allow for experimentation

in-camera auto focus and exposure accuracy become skewed during use

Neutral density filters do not affect the overall coloration of the image

Shadow areas will reveal more detail but without any flare or halation from direct light sources or bright reflections

Decrease lens minimum focus distance without distortion

Steadicam Arm Rain Cover Black Pro-Mist They are a tool thatKeep your Steadicam Arm dry and dust free with this 2 section weatherproof cover. A must for Rain, Dust, Sand and Sea Water environments. Seals the arm without restricting movement. Neoprene top for the arm post.