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Manfrotto 820 17.75-Inch Horizontal Arm Extension — main product image
Manfrotto

Manfrotto 820 17.75-Inch Horizontal Arm Extension

Push your boom arm further over the subject without rebuilding your stand rig — the Manfrotto 820 adds 17.75 inches of horizontal reach to 809 and 816 Salon Stand setups.

$251.72*
✓ In Stock on Amazon.com
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*Price sourced from Amazon.com. Last updated:Jul 14, 2026.Price and availability are subject to change.

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Overview

In studio and salon photography, positioning a light source precisely over a subject — directly overhead for a beauty dish, or extended past the frame edge for a controlled rim light — often requires more horizontal arm reach than a standard stand configuration provides. The Manfrotto 820 adds 17.75 inches to the effective reach of compatible 809 and 816 Salon Stands, using standard 3/8-inch female and male thread connections that integrate cleanly with existing Manfrotto hardware and the broader universe of compatible accessories. For photographers who have built their studio around these specific stands, the 820 is the purpose-designed solution rather than a workaround compromise.

The arm weighs 2.80 lbs and measures 17.75 inches in working length, with package dimensions of approximately 52.07 x 9.4 x 9.14 centimeters. The black finish matches the 809 and 816 stands for a consistent system look. The critical practical note when using the 820 is stand stability: any horizontal extension moves the center of gravity away from the stand column, and a strobe or large modifier at the working end increases tip-over risk if the base isn't properly weighted. Sandbags on the stand base are a standard precaution — not a criticism of the 820, but an operational requirement for any extended arm configuration in professional studio use.

Key Features

Package Dimensions: 52.07 cms (L) x 9.4 cms (W) x 9.14 cms (H)

Product Type: Camera Other Accessories

Package Quantity: 1

Country Of Origin: China

Specifications

Product Type
Camera Other Accessories
Length
17.75 inches
Package Dimensions (L x W x H)
52.07 cms x 9.4 cms x 9.14 cms
Package Quantity
1
Country Of Origin
China

Pros & Cons

👍 Pros

  • The 17.75-inch extension provides meaningful additional horizontal reach for salon and studio setups where precise light placement directly over a subject cannot be achieved with the stock arm length
  • Standard 3/8-inch thread connections on both ends ensure compatibility with a wide range of professional lighting accessories and grip equipment without requiring thread adapters
  • Designed specifically for the 809 and 816 stands, the 820 integrates cleanly into the existing Manfrotto system rather than introducing fitment uncertainty from a third-party component
  • The measured 17.75-inch extension gives consistent, repeatable placement for photographers who need to match lighting positions across multiple sessions and setups
  • At 2.80 lbs, the arm adds structural weight that feels solid in use while keeping the additional load on the stand base manageable with appropriate counterweighting

👎 Cons

  • Compatibility is limited strictly to Manfrotto 809 and 816 Salon Stands — this is not a universal boom extension and cannot be used with other stand systems without risking incompatible attachment
  • At full 17.75-inch extension with a modifier mounted at the end, stand tip-over risk increases significantly if the base is not sandbag-weighted and properly spread
  • The 3/8-inch threaded connection has no tool-free quick-release mechanism — repositioning the arm during an active shoot requires manually loosening the threaded fitting
  • No bubble level or angle reference is included, so achieving true horizontal alignment depends entirely on visual judgment or a separately sourced level
  • The 52.07cm packaged length adds bulk to location kit transport when combined with the full 809 or 816 stand system

Frequently Asked Questions

The Manfrotto 820 is designed as a direct extension for Manfrotto 809 and 816 Salon Stands — it mounts to those stands' horizontal arm socket and extends horizontal reach by 17.75 inches within the same system.
The mounting end uses a 3/8-inch female thread to attach to the stand, and the working end provides a 3/8-inch screw for connecting lighting accessories, reflectors, or other equipment — standard thread sizes compatible with the broad universe of professional studio accessories.
Verify your 809 or 816 stand's rated load capacity before mounting a heavy strobe at the end of the extension. At 17.75 inches of horizontal arm and 2.80 lbs of arm weight, counterweighting the stand base with sandbags is advisable when the load sits far from the stand column.
The 820 is specifically designed for the 809 and 816 Salon Stands. Other Manfrotto stand arms use different attachment mechanisms — compatibility with stands outside these two models is not guaranteed and should be verified before purchase.
The Manfrotto 820 is black, consistent with the color profile of the 809 and 816 Salon Stand system it extends — the arm integrates visually with the existing stand hardware rather than introducing a contrasting component.

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