I have the remote control Sony RM-AV2 for my camcorder Sony HDR-130E and am very happy with the remote control. She is always mounted on a pivoting lever of the tripod. I have a heavy Linhof tripod and a Japanese oil-damped swivel head. I needed for my earlier video-shoulder camera Sony Professional 200 (weight 4.00 kg). So there is no judder. Everything goes smoothly. And who has a steady hand and uses a so-called "pistol grip" for his camcorder, need no longer stand. But without a remote control is not even that.
The same remote control with a different name, there are also true for Sony digital cameras. There is also at long exposures with the tripod no longer shake. It touches not more the camera.