Zoom In

Think Tank Photo introduces the Sling-O-Matic, the photo industry’s first sling camera bag that can be easily switched to either shoulder. The Sling-O-Matic’s adjustable, fully padded shoulder strap “automatically” slides along a set of rails to change which shoulder the bag can be worn on. This is the innovative solution to the problem inherent with other sling bags: only being designed to wear the sling bag over the same shoulder. With one smooth motion, the Sling-O-Matic can be quickly switched to the opposite shoulder without losing the characteristics that have made sling bags popular among photographers. The Sling-O-Matic series offers three unique bags to choose from, depending on the set of photo gear a photographer needs to carry.

Key Features:

  • Easily switch "automatically" to carry over either shoulder
  • Gear access stays on top when Sling-O-Matic is in front
  • Carries a standard DSLR and a 70-200mm f/2.8 attached, with the lens hood in position
Gear Profile:
  • Carries a standard DSLR and a 70-200mm f/2.8 attached with lens hood in position, plus 3-5 additional lenses
  • Accommodates some pro DSLRs and a 70-200mm f/2.8 attached with lens hood in position, plus 3-5 additional lenses
Technical Specifications:
  • Interior Dimensions: 10.25” W x 15.5” H x 5.5” D* ((27.5 x 39 x 14 x cm*)
    Exterior Dimensions: 11” W x 16.5” H 6” D (28 x 42 x 15 cm)
    *bag flexibility allows expansion to carry some pro DSLR bodies with a lens attached inside the main compartment.
  • Weight: 2.5–3.4 (1.1–1.5 kg)


Exterior: For superior water-resistance, all exterior fabric has a durable water-repellant (DWR) coating, plus underside of fabric has a polyurethane coating. It also has 1680D ballistic nylon, 420D velocity nylon, YKK® RC Fuse (abrasion resistant) zippers, antique nickel-plated metal hardware, nylon webbing, 3-ply bonded nylon thread.

Interior: 210D silver-toned nylon, high-density extruded nylon, removable 210D silver-toned nylon & velex dividers, polyurethane backed velex liner, clear polyurethane mesh pocket (non-PVC), 2x polyurethane coated nylon 210T seam-sealed taffeta rain cover, high-density open & closed cell foam, 3-ply bonded nylon thread.

No Rhetoric Warranty on all Think Tank products
1 The photo industry's first sling bag that can be easily switched back and forth to either shoulder. Sling-O-Matic's adjustable, fully padded shoulder strap "automatically" slides along a set of rails to change which shoulder the bag can be worn on. With one smooth motion, the Sling-O-Matic can be quickly switched to the opposite shoulder without losing the characteristics that have made sling bags popular among photographers.
2 Gear access always stays on top, when the Sling-O-Matic is in front, no matter which shoulder the bag is carried over.  Part of the challenge of creating a "reversible" sling bag is to make sure that the access door to the photo equipment faces up when the bag is swung forward.  No complex reconfiguration of the Sling-O-Matic is required.  Simply flip the bag over, open it up and start taking great photos!
3 Fits a DSLR with up to a 70-200 f2.8 attached and the lens hood in shooting position! Sling-O-Matic can also accommodate some pro size DSLR camera bodies with a lens attached.
4 Discreetly stylized to avoid obviously appearing like a camera bag.  Going incognito is important when carrying expensive photo equipment.  Like other Think Tank bags, the Sling-O-Matic is all black on the outside so it won't attract too much attention when the equipment is stowed away.
6 Up to a medium sized tripod can be carried on one side using the included tripod straps.  Each Sling-O-Matic includes two fully adjustable straps that attach to small, but secure, fabric loops on either side of the long pocket.  Depending on the size of the tripod legs, one or two of the legs can be inserted into the long pocket for additional stability. 
7 Some small tripods can simply be carried in the long pocket, without using the tripod straps.
5 Long side pocket for carrying a large water bottle or other bulky accessories.
8 Large handles on three sides help to swing the bag around or just carry it in hand.
9 Wide zippered pockets on front, back, and side for carrying a newspaper, airline boarding passes, or other items.
10 Business card pocket on the top for carrying a short stack of business cards.
11 Attach the included "chest strap" for additional stability while walking around.
12 The adjustable side of the chest strap can be used as a waist strap, if preferred.
13 A small pocket on the bottom of the Sling-O-Matic is available for storing any of the removable straps.
14 A selection of padded dividers are included to partition the Sling-O-Matic's interior for different types of gear.
15 A seam-sealed rain cover is included for protecting the Sling-O-Matic and its contents from heavy rain, dust or snow.

Overall Product Rating:     

I have at least 5 thinktank bags. Possibly more. A few rollers, shoulder bags etc. I needed a bag that I could take with me on vacation that was easy to hike with, explore and not worry about weight hurting my shoulders and I wanted hands free. I got all of the above with the Sling-O-Matic. I am able to fit inside the 20, a 5dmk2 with 24 1.4 attached (hood on) a 70-200 2.8 mk 2 with hood, a 50mm 1.2, a 7d body, 2 chargers, pixel pocket rocket, extra batteries, business cards and an iPad, all comfortably with extra room to spare. I bet I can even get a flash in there. Great bag. Highly recommended for those *grab and go* situations. :)

I was surprised how comfortable this bag proved to be, even heavily loaded with two Canon 5D mark II bodies, 4 heavy L lenses (35mm f/1.4, 50mm f/1.2, 85mm f/1.2, and 16-35mm f/2.8,) extra batteries, other odds and ends, and an iPad. It was comfortable enough to keep slung over one shoulder for hours -- and when that shoulder did get tired, switching to the other shoulder proved quick and easy. I was also pleased with the abundance of grab handles (which make the bag easy to use while on the shoulder,) the abundance of pockets (including the very useful large pocket running along the length of the bag) and the overall smallness of the bag (considering its large capacity.)

This is my first think tank bag.(Sling-O-Matic 20) I have a backpack but it's a pain to take off when you need to get something quickly. I wanted something that I could carry my gear comfortably and yet have quick access. WOW! The quality and thought that went into this bag is awesome. Smooth and functional. Very pleased!

My second ThinkTankphoto bag, after the revolutionary Rotation360° Backpack. I was looking for a bag to carry a medium format on the back. The Rotation 360°, otherwise a great bag, I love it, is too small for medium format. the Slin-O-Matic is very versatile and easy to carry. A Hasselblad 203FE with three lenses (e.g. 110, 40, 250) and accessoiries fits in well. Easy access still possible, without put it down! Another great bag!

I had a small sling bag in the past, used it for holidays and such and it was so handy but the gear out grew the bag. I was ready to purchase a Lowepro Slingshot 202 AW but when I was looking at the photo store the Sling-o-matic 20 caught my eye and was very impressed with space, size and more importantly the dual shoulder capability. When I brought it home I was very impressed with the versatility of the bag and the amount of gear it van hold. Do you Know anybody who wants a back pack, I don't need it any more, it all fits in the new bag

This is actually a great bag...if your camera body fits. I bought this bag in anticipation of a shoot I had the following week. The evening before the shoot was the first time I tried to configure the bag for the gear I was packing. My camera body would not fit in this case with any lens attached. All of my bodies are Canon 1 series bodies. Shame on Think Tank to market this in an ambiguous way. Pro bodies will not fit in this bag with an attached lens. If it had enough depth to accomodate an actual pro sized body, it would be a phenomenal bag. Please make a Pro version of this bag, Think Tank!

Im carrying a toyo 4x5, meter, 6 holders, pack of25 sheets, changing bag, tape, lens, and it is perfect, compactm beautiful design, minimal...loving it

Sorry to say it but four days into a two week Ireland trip, I said to my wife, "I officially hate this pack". It is awkward to use. Without the camera in the pack it deforms when brought to the front. It knocked my hat and glasses off almost every time when taking off and broke glasses hanging around my neck. The pack is very well made though. Plus the pockets are too tight to store much of anything.

My bag arrived Saturday; it’s just what I’ve wanted. I can swing it around get what I need and send it back out of the way. Just one huge problem, my camera won’t fit, I have a Canon 5D with a battery grip. To store the camera I have to take the grip off. There just seems to be no way to store the camera in the bag with the grip on the camera. Other than that it’s a Super Product, great design and craftsmanship as all ways with ThinkTank products.

I'm disappointed to read over the 'negative' reviews of folks who don't like this bag simply because of lack of planning on their part! Didn't even try it until the moment you needed it? That sounds more like your problem than any fault of the bag, I regret to say. I got the Sling-o-Matic 20 to use with a Chamonix 4x5 view camera outfit, to use a quick "grab and go" bag that's easy to carry. It's ample capacity easily holds the camera with three lenses, plus loupe, meter, darkcloth and many smaller accessories. Film holders are carried in separate F.64 cases, two of which strap nicely to the side of the bag. A complete and compact kit! This is my first Think Tank bag and after seeing first hand the superb quality and thoughtful design that went into this bag, I plan to begin the process of changing out all my trusty old Tamracs for Think Tanks! Nice job Think Tank! I have no reason to search further for the perfect solution for gear storage and transportation now.

After several months trying to convince me to keep the bag, I'm going back to kata. This bag deforms and doesn't stay upright when on a table. Knocked two pro lens on the ground already... no way a 160$ bag will kill my lens. And don't try to tell me it's for lack of planning... I've tried every possible combination and really tried loving the bag :-( Might be good for others but not for me.

This bag is basically a box. It doesn't have pouches or compartments to hold all your extra gizmos and doodads. And carrying it is kind of like having a box on your back. It would be ok for large format or a specific piece of gear, but it's not suitable as a general-purpose bag you can work out of. It's the only ThinkTank bag (out of 8 or so I own) I don't really get any use from.

I got a 10 model a year ago. It works great. Now getting the 20 as outfit has grown.
You can make your purchase directly from Think Tank Photo. We ship directly to all U.S. states. When you place your order into the shopping cart and enter your zip code, you will be presented with a variety of shipping methods and their costs. Please select the one that best fits your requirements.

Alternately, you can visit our U.S. retailers. All Think Tank Photo authorized dealers who sell on the internet, sell at our MSRP ( Manufacturer’s Suggested Retail Price ). Please choose the dealer that you feel will give you the best service.

We have established distribution in many countries worldwide and are prepared to assist you in every way possible so that you can receive your product. To save shipping costs for each of our customers, we recommend to visit our Store Locator page to find the closest International Retailer in your location for your Think Tank Photo purchase.

Sling-O-Matic™ 20 Sling Camera Bag

Product: TT434
Industry’s first sling camera bag that “automatically” switches back and forth to either shoulder and still keeps gear access upright! Carries a DSLR, 70-200 f2.8, and 3-5 more lenses.
Customer Rating:
(13 reviews)
$167.75 $124.75

Become A Friend - Join Our Facebook

The rotation180° professional from MindShift Gear will change the way you shoot! Learn more about MindShift Gear.

© 2014 Think Tank Photo, Inc. All Rights Reserved.  Website Optimization by Blast Advanced Media

 Welcome friend of 
 Photography Bay 
Welcome Photography Bay readers!

As a special offer to our friends, when you order $50 or more of Think Tank gear online, at checkout you will be able to select a gift to receive for free.  You can use this special code as many times as you want and share it with friends and colleagues.  Enjoy the free gift!

Start Shopping
The shopping cart will automatically ask you which free gift you’d like to add to your order.
Rate This Product

Please rate this product from a scale of 1 to 5 stars.