F-Stop Small Shallow ICU (Internal Camera Unit) Review

The F-Stop Small Shallow ICU (internal camera unit) is a camera cube insert that organizes and protects all of your camera gear within your backpack or luggage.

Our Verdict

7.8 /10
Good info






Unlock the Pro Summary

Save time. Get access to brief summaries of our reviews so you can browse and make decisions more efficiently.

Join Pack Hacker Pro or, Sign In


  • Endless configuration possibilities
  • Great durability with top-notch materials
  • Turns any pack into a camera bag


  • Not ideal for quick access
  • Foam insert can slip out occasionally
  • Velcro straps are hard to utilize

Technical Details

  • Weight (lb)

    0.71 lb (0.3 kg)

  • Dimensions

    8 in x 11.5 in x 5 in (20.3 x 29.2 x 12.7 cm)

  • Notable Materials

    Ripstop Nylon, YKK Zippers

  • Manufacturing Country


  • Warranty Information

    Limited Consumer Warranty

Buying Options

F-Stop logo
Amazon Logo

Full Review

F-stop is the perfect example of a company that focuses on doing one thing well, and that one thing is carry solutions for camera gear. They offer an Urban series for daily carry, a mountain and ultralight series for traveling, and a wide range of internal camera units that are designed to organize, protect and store camera equipment within your pack.

F-Stop Product Range
F-Stop Product Range

We’ve been testing the F-Stop Small Shallow ICU (internal camera unit) for the last 3 months—it’s been on a few trips to Belgium and Spain, as well as a handful of short trips around town. These ICU’s are engineered to function seamlessly with F-Stop’s Mountain Series packs, but the great thing is you don’t need an F-Stop bag to utilize them—they have the ability to turn ANY bag into a camera bag by just dropping one in.

This idea, of course, had us really excited. Can you truly turn your backpack into a camera bag just by picking one of these up? Let’s find out.

Taking the F-Stop ICU out of a Thule Subterra 34L
Taking the F-Stop ICU out of a Thule Subterra 34L

Material & Aesthetic

The F-Stop Small Shallow ICU features a sleek, minimal design—it’s really just a box, but a great looking box at that. F-Stop only offers one color across all their ICU range, which is—unsurprisingly—black. It’s nondescript and least likely to show any dirt, grime, or stains—which is great!

F-Stop offers the ICU in various sizes ranging from a ‘Micro Nano,’ which is perfect for a small mirrorless camera, to a ‘Cine Master’ that will hold everything but the kitchen sink! It’s safe to assume that no matter how much camera gear you have, F-Stop will have you covered. The Small Shallow ICU that we’ve been testing is 11.5 inches (29.2cm) in width, 8 inches (20.3cm) in height and 5 inches (12.7cm) in depth—which we’ve found to be a perfect size for one bag travel.

F-Stop Small Shallow ICU Dimensions
Dimensions of the F-Stop Small Shallow ICU

The ICU features a tough, weather resistant ripstop nylon on the outside, high-density cross link foam padding with a brushed polyester lining on the inside, and heavy-duty industrial cross stitching. Not only is this thing designed to protect your camera gear, but it’s built to last—and at only 0.71lbs (0.32kg) when empty, it’s also incredibly lightweight.

External Components

The first thing you’ll notice on the F-Stop ICU is the top handle. This comes in handy when grabbing the ICU out of your bag, and it will lay flat against the unit when not in use—it’s nothing fancy, but does its job well.

F-Stop Small Shallow ICU Top Handle
F-Stop Small Shallow ICU Top Handle

The top handle also features metal d-rings on either side for you to attach a shoulder strap to, creating a messenger bag style carry. This is a nice feature if you ever want to take the ICU out on its own, as opposed to carrying it within a bag—not something you’re likely to do often but it’s great to have the option.

F-Stop ICU Shoulder Strap Attachment
F-Stop ICU Shoulder Strap Attachment

Just below the metal d-rings you’ll find a couple of Velcro tabs—these are here to attach the ICU to F-Stop’s mountain series packs. If you have one of these, that’s great… Otherwise they’re rendered useless. We weren’t overly upset about this though, as you don’t really notice them.

The zip that opens the main enclosure and covers three-quarters of the entire unit is a nice, chunky YKK 8RCz—the go-to brand for quality zips—ensuring reliability and a smooth opening. The plastic tabs on the zipper pulls are a nice touch too, making them easy to find and grab hold of.

F-Stop ICU YKK Zips and Velcro Tab
YKK Zips and the Velcro Tab

Internal Components & Organization

Open up the ICU and you’ll find five foam dividers, one long and four short. The idea here is to arrange these in a configuration that best accommodates all of your camera gear. This can be a bit tricky, but the five dividers should be able to handle every scenario you can think of. Even if it takes a little while, you’ll crack it eventually—and it’s worth it once you do.

F-Stop ICU Small Shallow Internal Dividers
F-Stop ICU Small Shallow Internal Dividers

The configuration we came up with actually involved taking two of the small dividers out. We were able to fit everything you would need for a day out shooting—which ended up being a DSLR, two lenses, spare batteries, shotgun mic, lavalier mic, mini tripod and a small LED light. A pretty solid kit for a relatively small bag!

If you do want to carry more gear you can get one of the bigger ICU’s, however we’ve found the Small Shallow ICU to be perfect for one bag travel—anything bigger and you’re going to struggle with having enough room for clothes and other essentials.

One thing we’ve been very impressed with is how well the velcro secures the dividers to the brushed polyester material. It can actually be quite tough to remove the velcro—these things are seriously grippy. This all shows just how well-built and well-designed this thing is. You pay premium prices for F-Stop gear but they return the favor by delivering a premium product, which we’re always looking for.

The Small Shallow ICU also comes with two velcro elastic straps that are designed to secure items within the dividers. They are a nice touch but they don’t really seem to do anything. When packed well enough, the items inside ours are pretty secure—maybe these straps come in handy for heavier items in larger ICU’s, but in our case they’re just not needed.

F-Stop ICU Velcro Straps
Internal Velcro Straps

One last little touch that F-Stop has included is the removable foam insert on the top part of the unit. This thoughtful addition increases the protection for your expensive camera gear, and can even be used to kneel on when you’re taking photos.

We would have liked to see a zip across the bottom where the insert slides in, as the foam sheet tends to slide out a little when you open the lid. This isn’t a huge gripe, but there’s room for improvement here.

F-Stop Small Shallow ICU Foam Sheet
F-Stop Small Shallow ICU Foam Sheet

Durability and Testing

The F-Stop Small Shallow ICU is clearly built to last. At the time of this review, we’ve been testing it for about 3 months, but it has held up incredibly well—you could still pass this thing off as brand new. It has also done a solid job of protecting our camera gear—the dividers secure everything tightly so nothing moves around, and the high-density foam puts our mind at ease, knowing our gear is safe in our pack.

Close-up of the F-Stop Small Shallow ICU
Close-up of the F-Stop Small Shallow ICU

One downside we’ve found with the ICU is that there’s really no quick access features. If you need to get the shot quickly, this thing won’t be much help—you’ve got to open your bag and then open the ICU just to grab your camera. For most people this won’t be an issue, but for more serious photographers it can be a hassle.

If you do need instant quick access there is an easy option—you can buy a mountain series F-Stop pack that has back panel access straight to the ICU. For the casual photographer, the durability and organization that this thing can add to your standard backpack should far outweigh the accessibility problems.

F-Stop ICU in a Fjallraven Kanken
F-Stop ICU in a Fjallraven Kanken

The best thing about this ICU is undoubtedly its versatility. You can slot the unit inside your 40L travel bag, 20L daypack, carry it on its own, or just use it for storage. If we’re being honest, our camera gear only leaves the ICU when it’s actually in use.

Usage Timeline

Initial Usage

Condition: Excellent

Wow, this velcro is grippy! Love the look of this thing.

3 Months of Use

Condition: Excellent

Still looks brand new & functions well. It’s doing great.

By Pack Hacker Team
Created May 6, 2018 • Updated July 18, 2023
Access the Pro Community Discussion

Get your questions about the F-Stop Small Shallow ICU (Internal Camera Unit) answered from our team and the Pro Community right here on the page. Plus, join discussions with other members about gear, guides, and more.

Join Pack Hacker Pro or, Sign In