The Steadicam Merlin with Arm and Vest is a camcorder stabilizing system for small camcorders. This system utilizes a metal gimbal for smooth camera movement. Combined with the arm and vest this system offers full professional support and movement. Merlin was designed by Garrett Brown and outperforms its predecessor the Steadicam Jr.
The 2.6 lbs (1.2 kg) Merlin Vest is light and thin; it can even be worn under a tuxedo jacket. It's designed to fit many human sizes and shapes. It will fit 23 kg eight-year-olds to 150 kg linebackers. The Merlin Vest provides comfort and functionality for extended productions and long continuous shots. All adjustments are 'no-tools', including the right-arm/left-arm changeover.
The Merlin Arm is ultra-light and extremely capable; it's a 7/8 scale version of the Flyer, G-50 and G-70 arms. It provides performance and flexibility including instant, knob-adjustable control of lifting power for camera payloads between 2.5 and 7 lbs. (1.1 to 3.2 kg)
The Merlin system is four times as smooth as the Steadicam Jr. but, weighs much less. This gives the Merlin a look a smooth as Hollywood Steadicams.
More Info here.. Tiffen Steadicam Merlin