Acratech GP-s Ballhead with Lever Clamp

Acratech GP-s Ballhead with Lever Clamp

Acratech GP-s Ballhead with Lever Clamp

B&H # ACGPSLC MFR # 1158
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Product Highlights

  • Functions as a Gimbal Head
  • Functions as a Leveling Base
  • Reduced Base Diameter for Travel Tripods
  • Lever Quick Release for Arca Style
  • Dual Laser-Engraved Degree Markings
  • Supports over 25 lb
  • Lightweight - Weighs Just 0.9 lb
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Acratech GPs overview

  • 1Description

The Acratech GP-s Ballhead with Lever Clamp is an updated version of the existing GP-s head. Rather than a rubber knob, this model features a locking lever for securing the Arca Swiss-style clamp that constitutes the quick-release element.

Featuring first-class construction, the GP-s Ballhead also functions as a gimbal head for lenses up to 400mm f/4.0, and it can be positioned upside-down to function as a leveling base for panoramic photography. Even if you're operating on rocky or otherwise uneven terrain, you can pan absolutely parallel to the horizon, so you won't need to carry a separate leveling base to create accurate stitched panoramic imagery.

With all that functionality, the GP-s Ball head is designed with a small base diameter of 2.08" to allow it to be used with travel-type tripods whose legs fold up 180°, reaching to the top of the tripod head. The smaller base diameter allows the tripod legs to fold more compactly.

The ballhead also features a bull's-eye level on the quick-release clamp and a detent pin, which prevents the plate and anything attached to it from sliding out of the quick-release clamp when it's partially loosened. Lightweight at only 0.9 lb, the GP-s Ballhead supports loads over 25 lb from any position, including tilted 90° and mounted upside-down.

Fits all standard tripods (1/4"-20 and 3/8"-16 threads)
Easily holds over 25 lb (11.4 kg) at any angle
Works as a gimbal head with lenses up to 400mm f/4.0
Weighs 0.9 lb with quick-release clamp
Reduced base diameter of 2.4"
Dual laser-engraved calibrated panning scales
Full movements in any camera position
Precision machined aluminum
Compatible with Kirk, Arca Swiss, Acratech, R.R.S., and many other quick-release plates
Beautiful satin black-anodized finish
Long-lasting stainless-steel hardware
All knobs are secured so they cannot vibrate loose and fall off
Built-in safety detent pin
Oilless and greaseless ball will not attract or hold dirt and debris
Made in the USA
In the Box
Acratech GP-s Ballhead with Lever Clamp
  • 10 Year Limited Warranty
  • Table of Contents
    • 1Description

    Acratech GPs specs

    General
    Head Type Ball Head
    Base Mount 3/8"-16 Thread & 1/4"-20 with Bushing
    Camera Mounting Thread Not Specified by Manufacturer
    Quick Release Plate Type Arca-Type
    Load Capacity 25 lb / 11.3 kg
    Number of Bubble Level(s) 1
    Friction Control Yes
    Independent Pan Lock Yes
    Material Not Specified by Manufacturer
    Physical
    Ball Sphere Diameter 1.5" / 38 mm
    Base Diameter 2.08" / 53 mm
    Dimensions H: 3.9 x W: 3.1" / H: 98.0 x W: 80.0 mm
    Weight 0.9 lb / 400 g
    Packaging Info
    Package Weight 1.3 lb
    Box Dimensions (LxWxH) 7.2 x 4.8 x 4.4"

    Acratech GPs reviews

    GP-s Ballhead with Lever Clamp is rated 4.8 out of 5 by 18.
    Rated 5 out of 5 by from Everything I Expected I bought this to use on a Gitzo GT2542T Series 2 tripod and it fits well, allowing the collapsed tripod to close almost entirely around the ballhead. The GP-s ballhead itself seems really well made despite its light weight, locks down well, does everything it is supposed to do and can function as a gimbal head. Much superior to the more moderately priced ballhead I already owned which tends to drift in position when you tighten it down so that you had to compensate as you tightened. The GP-s locks where you want it. A really good mate for a top quality travel tripod.
    Date published: 2015-04-26
    Rated 5 out of 5 by from Awesome tripod ball head I bought this before going on a backpacking trek in New Zealand. The main decision was either this or a RRS 40 BH40. I chose this because of the open design allowing sand, debris etc to fall out freely. I am very happy with my decision. This has worked perfectly. Will easily support a DSLR with a 24-105mm lens. I have not tried it with a longer 70-200 lens, but have read that it would work. The built in bubble level works great. I have only inverted it a few times to be able to pan parallel to the horizon. Nifty feature, but just takes time to do. This was paired with a feisol CT-3442 and they work perfectly together. This head will allow the legs to flip back up around/over the ballhead for even more compact carrying. No regrets about this purchase. Solid construction.
    Date published: 2014-10-04
    Rated 5 out of 5 by from I really like this setup. I really love the lightness, construction, and performance of this ballhead. It is very easy and flexible to use. I think it will be easy to maintain and will be durable. It does not get in its own way, i.e., when adjusting positions there is nothing that limits movement. Now onto the lever clamp. I love the way this lever operates. When switching camera positions with an L-bracket, or switching lenses, it is fast, fast, fast. My only reservations about this clamp is that there is an extra moving part. The clamp has two spring-loaded sides to it to allow for varying tolerances between different manufacturers' plates. This is one extra part that could fail. However, the convenience now is outweighing any possible failure later. I have read others have had trouble with this clamp; for now I am not using it with larger lenses, and am making sure everything is adjusted properly. For a larger lens over a couple of pounds, or for gimbal usage, I would most likely consider an Acratech clamp with a screw knob.
    Date published: 2016-06-28
    Rated 5 out of 5 by from Very well made I bought this bullhead to replace my PhotoClam head (on a PhotoClam tripod) and I'm very pleased with it. Most impressive is the build quality - a precision product obviously made to high standards, and it's made right here in the good ol' US of A. It works very well - the minimum tension is easily set, and it locks securely with no drift when tightened down. The gimbal head mode works pretty well, maybe not as good as a real gimbal but it's still useful. This head costs a little more than its competitors, but it's worth it. Highly recommended.
    Date published: 2016-05-05
    Rated 4 out of 5 by from Near perfect As another reviewer mentioned, the framing slightly changes when you lock the ballhead in place. Tightening the friction screw does help a little but if critical framing is important you might want to look elsewhere
    Date published: 2016-07-22
    Rated 3 out of 5 by from A differing view So, my review is going to be a bit differing from what I see / saw here when I bought this. What I was looking for in buying this was a head that is stable, easy to adjust and lock on to a composition, and strong. This head delivers in terms of strength and ease to adjust. Sturdy / easy to lock on to a composition not so much. To be fair, perhaps I expected too much from it. I bought this to take shots of the blood moon 4/4/15. What I found in usage today is that when I framed the shot I wanted and then tightened the ball down once I let go of the camera, the composition would drift *drastically*. This drift wasn't from slippage, but rather from play in the head itself. To be fair, perhaps I expected too much from this (I like to think not as close to $ for a head is expensive to me). I was pretty disappointed in the results, but perhaps you have a much lighter setup than I tried and this might work better for you. I can assure you that it is pitiful with a camera and lens that is well less than the max weight it is supposed to support. I had a lens that is a beast at 6.3 lbs (a tripod ring of course which is where I mounted to the head) and a camera that is no lightweight either (3.37 lbs). However, combined they are a little under 10 lbs which is well below what this is purported to support. Overall I'm disappointed and had I bought this on @ where there is a longer return period I would return it. Before the next blood moon in Sep/15 (and perhaps last that I will see in my lifetime), I will be getting a geared head like the Manfrotto 405 - hopefully that will meet what I'm looking for. Not being able to accurately frame a shot and tighten things down without it totally loosing the composition when the camera is released is a major downside of this thing in my mind.Pros: Seems to be built strong, easy to use, the quick release on the model I got is nice, movement such as panning is quite smooth.Cons: Biggest (and my primary complaint) is that you frame your shot, tighten things down and then when you let go the shot composition is totally screwed up because it shifted way off. Another thing for folks with an Arca setup to know is that while this does have an Arca mount, the mounts on your other things may not work without doing things like removing the stop screws (which I had to do for the lens mount) - however, perhaps that is offset by the spring loaded pin that is built into the base which does the equivalent of the stop screws I'm talking about.
    Date published: 2015-04-04
    Rated 4 out of 5 by from Great ballhead I really like Acratech's design in their GP ballhead line; I happen to be one that values form almost as much if not as much as funtion in most cases. And this is the kind of product that balances both. The only reason that I didn't give it 5 stars is because the panning lock at the base doesn't have enough torque to positively lock against the kind of leverage a person can apply when, say, screwing or unscrewing the ballhead onto or off of their tripod legs. Dont' get me wrong, it's plenty strong enough, but when giving it a good snug cinch down during the install, it slipped on me just a little. Now, in its defense, I might have been tightening more than necessary. And I might also have failed to tighten the panning lock enough (I don't want to strip any threads so I just snug it down slightly more than finger tight). This might not be the case on the full size GP; I only have a GP-s so I can only comment on its strength. Otherwise, it's an incredibly capable ballhead that also offers a lot without requiring a lot of weight to be carried around.
    Date published: 2012-06-01
    Rated 5 out of 5 by from Great products, great support! HUGE Shout out for the incredible support from the good folks at Acratech! Not only do they make top quality products, but they also stand behind them. I over-tightened a knob and with one 5-minute phone call, they are sending me a replacement for just the cost of shipping. I was always a big fan, but now I'm a customer for life. The only problem is that their products are built so well that I may not need anything new!
    Date published: 2017-10-18
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