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Acratech GXP Ball Head with Knob Clamp

BH #ACGXPBHKC • MFR #1205
Acratech GXP Ball Head with Knob Clamp
Key Features
  • Load Capacity: 50 lb
  • Height: 4.2"
  • Weight: 1 lb
  • Arca-Type Compatible
The lightweight 1 lb GXP Ball Head with Knob Clamp from Acratech has a 3-in-1 feature designed to have two more functions other than just your conventional ball head. The Arca-type clamp on the head is removable from its stem, and it is mountable in the reverse to the base of the ball head. With the clamp removed, the ball head's stem has the same 3/8"-16 mount as the base, which includes a reducer bushing. The clamp itself has a single bubble level that allows you to balance and level out the ball. At the same time, you can unlock the independent pan lock and rotate lenses as large as 400mm and equipment weighing up to 50 lb. Together with a laser-engraved numbered scale, you can precisely create panoramic images by turning the ball head at incremental stops.
In Stock
$509.95
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Quick Release Type
Knob Locking
Lever Locking
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Acratech GXP Overview

The lightweight 1 lb GXP Ball Head with Knob Clamp from Acratech has a 3-in-1 feature designed to have two more functions other than just your conventional ball head. The Arca-type clamp on the head is removable from its stem, and it is mountable in the reverse to the base of the ball head. With the clamp removed, the ball head's stem has the same 3/8"-16 mount as the base, which includes a reducer bushing. The clamp itself has a single bubble level that allows you to balance and level out the ball. At the same time, you can unlock the independent pan lock and rotate lenses as large as 400mm and equipment weighing up to 50 lb. Together with a laser-engraved numbered scale, you can precisely create panoramic images by turning the ball head at incremental stops.

Converting the head back to a normal functioning ball head, you can increase or decrease the ball's tension via its separate tension control knob. Moving the clamp to a 90° angle enables you to use the head as a gimbal with long telephoto lenses that have tripod feet. The top of the clamp is also laser engraved with a scale, which allows you to balance a telephoto lens when at a 90° angle, and a detent pin located inside the clamp prevents the lens from sliding out if the knob locking mechanism is accidentally opened.

Acratech GXP Specs

Key Specs
Head Type
Ball Head
Base Mount
3/8"-16 Female & 1/4"-20 with Bushing
Quick Release Plate Type
Arca-Type
Friction Control
Yes
Load Capacity
50 lb / 22.7 kg
Weight
1 lb / 454 g
Head
Head Type
Ball Head
Base Mount
3/8"-16 Female & 1/4"-20 with Bushing
Quick Release Plate Type
Arca-Type
Number of Bubble Levels
1
Friction Control
Yes
Independent Pan Lock
Yes
Ball Sphere Diameter
1.5" / 3.81 cm
Vertical Tilt
90°
Panning Range
360°
General
Load Capacity
50 lb / 22.7 kg
Weight
1 lb / 454 g
Packaging Info
Package Weight
1.345 lb
Box Dimensions (LxWxH)
7.2 x 4.9 x 4.4"

Acratech GXP Reviews

See any errors on this page? Let us know

Can this be used for panning?

Can this be used for panning?
Asked by: Suzanne
Yes Acratech GXP Ball Head with Knob Clamp does have a panning function.
Answered by: Daniel
Date published: 2022-07-21

What is the diameter of the base?

What is the diameter of the base?
Asked by: chris
The base diameter of the Acratech GXP Ball Head with Knob Clamp is 2.375" (60mm).
Answered by: Marisa
Date published: 2023-03-13

which is better knob or lever?

which is better knob or lever?
Asked by: Monica
In addition to the two other good answers, a knob-type clamp can compensate for differences in the exact width or bevel angles on different manufacturer's Arca-Swiss plates. Only a few lever clamps can compensate for such differences in the plates. Really Right Stuff's B2-LR-II will accept some variation (I suspect it uses a Bellevile washer) per RRS website "Starting in 2012, ... Really Right Stuff lever-release clamps were redesigned to automatically adjust to accept all Arca-Swiss style plates except Arca-Swiss P0 Slidefix plates and plates made by Novoflex." A few other lever clamps can compensate via a knob adjustment on the opposite jaws. Some lever clamps such as RRS have an intermediate position which allows sliding the A-S plate withing the limits of the plate's safety stops. However, you can also just loosen a knob clamp slightly with the same result. All my A-S clamps use knobs except for my one RRS B2-LR-II.
Answered by: James M
Date published: 2023-07-18
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