Sirui HA-77 19.7" Horizontal Boom Side Arm

SKU: SIHA77TZA MFR: HA77TZA
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Key Features

  • Achieve unique angles with this 19.7" Sirui horizontal boom arm for tripods!
  • Easily connect your tripod head using the reversible 1/4" & 3/8" screw.
  • Crafted from high-quality aluminum, this tripod arm supports up to 11.02 lbs.
  • The HA-77's sturdy build ensures secure positioning for precise photography.
  • Adjust your camera with ease using this extension arm's 1.96-3.03" length.
  • This lightweight tripod accessory (2.62 lbs) adds versatility without bulk!
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Special Order?Estimated to Ship: 08/30/2025
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Sirui HA77TZA Specifications

HA-77
  • Material

    Aluminum of the highest quality

  • Tripod connection

    3/8"

  • Head connection

    1/4" and 3/8" (reversible screw)

  • Pipe diameter

    24-28mm

  • Base diameter

    1.88" (48mm)

  • Dimensions (L x H)

    1.96-3.03 x 0.78" (50-77 x 20cm)

  • Max. Load capacity

    11.02 lb (5kg)

  • Weight

    2.62 lb (1.19kg )

  • UPC Code

    6952060010908

About Sirui HA77TZA

You can elevate your photography game with the HA-77 19.7" Horizontal Boom Side Arm, a versatile and flexible tool that is essential for capturing shots with a camera point outside the center of the tripod. This product is bundled with the TZA-100, a 59mm platform that features a reversible 1/4 20 - 3/8" screw.

The HA-77 Horizontal Boom Side Arm is designed to support two devices simultaneously by removing the foam handle and installing the provided platform. This allows for a configuration of two parallel cameras or a single camera parallel to another device, providing a wide range of shooting options.

Ideal for top-down, macro, food, or repro photography, this extension arm is a must-have for any serious photographer. The standout feature of the SIRUI HA-77 is its telescopic function, allowing the arm to extend up to 77cm (overhang 60cm), offering unparalleled flexibility.

With a 360-degree panorama function and a tilt range from +90 degrees to -90 degrees, this horizontal arm can adjust to almost any camera position. The arm is also horizontally adjustable by 30.5cm, ensuring you can capture the perfect shot from any angle.

The HA-77 Horizontal Boom Side Arm is equipped with a soft foam rubber handle for secure operation and an integrated 3mm Allen wrench in the grip and load hook. It also features wing screws for secure locking of the levels and an extension arm groove to prevent twisting.

For added convenience, this product includes a length and angle scale for reproducibility and a second optional mounting plate for an additional camera, monitor, or accessories. The load hook for counterweight ensures stability, making the HA-77 19.7" Horizontal Boom Side Arm a compact all-rounder that can significantly enhance your photography experience.

Sirui HA77TZA Features

  • Versatile HA-77 19.7" Horizontal Boom Side Arm for flexible camera positioning
  • Bundled with TZA-100, a 59mm platform with reversible 1/4 20 - 3/8" screw
  • Telescopic function extending up to 77cm for unparalleled flexibility in shooting
  • 360-degree panorama function and +90 to -90 degree tilt range for diverse camera angles
  • Horizontally adjustable by 30.5cm, perfect for top-down, macro, food, or repro photography
  • Includes soft foam rubber handle, integrated 3mm Allen wrench, and load hook for counterweight

Key Features

  • Achieve unique angles with this 19.7" Sirui horizontal boom arm for tripods!
  • Easily connect your tripod head using the reversible 1/4" & 3/8" screw.
  • Crafted from high-quality aluminum, this tripod arm supports up to 11.02 lbs.
  • The HA-77's sturdy build ensures secure positioning for precise photography.
  • Adjust your camera with ease using this extension arm's 1.96-3.03" length.
  • This lightweight tripod accessory (2.62 lbs) adds versatility without bulk!

What's in the box:

  • HA-77 Extension Arm
  • TZA-100