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Sirui HA-77 Horizontal Extension Arm / Boom Arm with TZA100 Strap
Product Description: The HA-77 Horizontal Extension Arm / Boom Arm from Sirui is a versatile accessory arm for macro photography, mounting dual tripod heads, and more. It features an arm that can be extended in length from 19.7 to 30.3" with the use of a simple twist-lock joint. Each end of the arm can receive a tripod head by way of a reversible 1/4"-20 to 3/8"-16 mounting stud. One end can also be converted to use the included ballast hook for added counterbalance when extending a heavy camera. The angle of the arm can be adjusted +/-90 degrees, and then locked in place with a robust knob. A numbered angle scale allows precise and repeatable results. The arm can also be laterally positioned with ease and features a numbered scale. The entire arm mechanism is mounted on a sturdy panoramic base with a 360-degree rotation capacity and an independent locking knob.
Mounting Bottom: 1 x 3/8"-16 Female
Side: 2 x Reversible 1/4"-20 to 3/8"-16 Male
Load Capacity: 11 lb / 5 kg
Material of Construction: Aluminum
Dimensions 30.3 x 19.7" / 77 x 50 cm
Weight: 2.6 lb / 1.2 kg
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