3 Legged Thing Axis Sling Review
Summary Verdict
The 3 Legged Thing Axis Sling is a comfortable and secure camera strap, however, it comes into its own when two are used together to create the Axis Twin Sling. Carrying two cameras comfortably and securely has always been a bit of a juggling act, but it’s a great way for photographers to swap seamlessly between lenses of different focal lengths and it's very popular amongst wedding and event photographers. The Axis Double Sling (also known as the Axis Twin Sling) from 3 Legged Thing provides a well-thought-out solution, combining some of the flexibility and customisation of the Axis Strap System with the ability to carry two cameras at once. It’s a modular system that offers comfort, control and fast switching between setups — and, importantly, it’s designed to work around your body, not against it.
Read Our 3 Legged Thing Axis Anywhere Review
Score: 5/5
For
Can be used as a single strap or combined to make a Twin strap
Fast camera attachment and detachment
More comfortable than two cameras on separate cross-body straps
Against
Initial setup takes a little experimentation
The cameras hang upside down
Extra care is required when putting the straps on or taking them off
The 3 Legged Thing Axis Sling can be bought and used individually, as shown here, or in pairs to create a two-camera strap.
What is the 3 Legged Thing Axis Sling?
The 3 Legged Thing Axis Sling is a camera strap that is worn across your body and has a shoulder pad for extra comfort. There's a short siding strap that attaches to the shoulder pad and can be passed under your arm to help keep the strap in place.
It's a comfortable and secure strap, however, it's especially attractive for anyone who needs to carry two cameras at once, because two Axis Slings can be connected to create the Axis Double Sling. The two straps are connected using the straps that would normally pass under your arm, effectively creating sternum and back straps to keep the Slings on your shoulders. It allows photographers to carry two cameras, one on either side of their body, without them swinging about or getting in the way.
The Axis Sling is part of the wider 3 Legged Thing Axis Strap family, which includes the Axis 24, Axis 34 and Axis 44 in both padded and non-padded versions, the Axis Pulse wrist strap and the Axis Anywhere bag-mount strap.
Two Axis Slings straps can be connected using the straps that normally pass under your arm when they are used individually.
3 Legged Thing Axis Sling Price and Availability
The Axis Sling launched on Kickstarter on 9th September 2025 and it can be bought individually or in pairs to create the Axis Double Sling. Naturally, buying the Twin Sling kit incurs a saving compared to buying two Axis Slings separately. However, if you buy a single Axis Sling strap, you can buy a second at a later date to create the Double Sling configuration.
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The strap that passes under your arm makes the Axis Sling a little more secure and keeps the shoulder pad away from your neck.
Key Features
While the Axis Sling is worn across your body, the two halves of the Axis Double Sling are worn on your shoulders, hanging straight down and not crossing your body. As I mentioned earlier, the two individual Axis straps transform into a dual-camera system by connecting them by the strap that passes under your arm when using the Sling individually. There's no left or right as the Slings are identical, snapping together to make a harness. The cameras sit at your sides, ready for use.
Each Axis Sling strap features a 3 Legged Thing QD Swivel connector that can slide along the strap as you raise or lower the camera.
The straps have a shoulder pad and reinforced Hypalon stitching for comfort and durability. Also, the strap length is adjustable via sliders at two points on each strap.
Importantly, the QD Swivel connectors are compatible not just with the supplied QD plates but also with 3 Legged Thing’s newer L-brackets that feature integrated QD docks — such as the Arnie bracket I used on the Sony A7R IV. You can also attach a QD connector to a telephoto lens tripod foot fitted with a QD plate, enabling the camera system to be supported by its heaviest component. It’s a flexible setup and suits a variety of working styles.
The length of the two straps can be adjusted individually to suit you are the cameras you’re carrying.
Build and Handling
A single 3 Legged Thing Axis Sling makes an attractive alternative to the 3 Legged Thing Axis 24, 34 or 44. While the Axis 34 etc can be used around your neck, on your shoulder or across your body, a single Axis Sling is worn across your body. Alternatively, two can be joined to create a harness-type strap.
Dual-camera straps can be awkward to put on and remove, but the Axis Double Sling is a easier and it doesn't feel overly bulky or restrictive. For a start, you can attach the cameras to the strap very quickly, and detach them in a flash. This means that rather than playing an expensive game of clackers (remember them?) you can leave the cameras off the straps when you put them on.
The easiest way to put on the Twin Sling is to first connect the two straps that will be at the back of the harness. This means you can now slip your arms into the harness like a weird type of cardigan. Next, it's advisable to connect the two straps at the front of the harness to form a sternum strap. Now you can safely connect the Swivels to your cameras.
Each strap has a sliding buckle and, at the opposite end, a loose end of strap that feeds through a second buckle. This second buckle allows you to adjust the overall length of the strap and it's easiest to adjust when this buckle is at the front of the harness. Clips at either end of the strap allow you to swap it around so both loose ends of the Double Strap face forward. In use I find it marginally easier to use the straps if the excess webbing is at the back of the harness because there's less to get in the way of your camera.
As the strap connects to the camera via its tripod bush or the lens tripod foot, the Axis Sling carries each camera upside down by default, which is a common approach with harness-style systems, but it can take a little getting used to.
Because the QD plate is Arca-Swiss compatible, it can be used with many tripod heads, including those from 3 Legged Thing and Peak Design. I used the Sony A7R IV with a 3 Legged Thing Arnie L-bracket, and a Sony A1 with a 70-200mm lens mounted via a QD plate on the tripod foot on the other. This let me keep both camera grips easily within reach, and I could lift either one quickly without disturbing the other.
When you come to take the straps off, I recommend detaching the cameras.
The QD Swivel connectors are quick to attach and remove. After a little practice, I found it easiest to hold the Swivel connector between my index and middle fingers while pressing the release button with my thumb. They pop into place and stay put unless deliberately released.
Like the other straps in 3 Legged Thing’s Axis range, the Sling uses QD Swivel connectors to link the strap to the camera or lens.
Performance
I find the 3 Legged Thing Axis Sling comfortable to use even with heavy camera and lens combinations. The strap that slips under your arm helps to keep the shoulder pad in place and away from your neck while the pad spreads the weight effectively.
In use, the Axis Double Sling distributes the weight of two camera setups evenly and keeps the cameras close to your sides. I particularly appreciated this on long days where I needed to walk between locations or switch cameras frequently. There’s none of the slippage or dragging that you often get with single straps when carrying two cameras, and the padded sections stayed in place throughout.
I also appreciated being able to adjust the length of each strap independently to ensure that both cameras sit at the right height without swinging around.
Being able to mount cameras via a QD Plate, L-brackets or lens tripod feet adds versatility to the setup. When I need to switch one camera to a tripod, I can disconnect the QD Swivel quickly, with no fuss. And because both the QD plates and L-brackets are Arca-Swiss-compatible, it was simple to mount the camera straight into a tripod head.
While the system is comfortable in use, a little extra care is needed when putting it on or taking it off. It’s easy for one camera to swing unexpectedly and you don't want to drop the camera's top-plate down onto a hard surface.
I used the 3 Legged Thing Axis Twin Sling extensively over several days and I never had a QD plate loosen. However, it's advisable to check that the plates are firmly attached at regular intervals.
While the Axis Double Sling is best worn by itself, I have used it while carrying a backpack, with the pack going on after the straps. Naturally, the backpack straps restrict the movement a little, but I found it works well and is still comfortable.
It’s best to carry heavy or long lenses via the tripod foot on their collar.
Verdict
The 3 Legged Thing Axis Sling is a smart and adaptable camera strap that works beautifully on its own or as part of the Axis Twin Sling setup. It’s ideal for photographers who want a secure, cross-body carry system that doesn’t compromise on comfort. Used solo, it’s a solid option for days when you're travelling light. But its true potential is unlocked when used in a pair. The ability to carry two cameras with quick-release security and even weight distribution is a real benefit, especially for wedding, event or press photographers who need to move quickly and work efficiently. It's one of the most considered and flexible strap systems I’ve used, and it’s reassuringly tough.
