The Sirui HA-77 Horizontal Arm can be used as a miniature camera boom. It accepts 3/8"-16 female threaded accessories. The arm has a flat plate on the front end of the section, which can fit 3/8"-16 or 1/4"-20 female threaded accessories. The arm offers 360ø pan movement and ñ90ø tilt movement. The length and angle hatch marks provide easy adjustment. You can hang a counterweight on the ballast hook when using heavy lenses. The foam-padded handle makes it comfortable to operate the arm. A hex key is provided to install and remove the arm from the tripod. This horizontal boom arm is made of aluminum alloy that ensures durability
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