Kase Soft Filter Bag 100mm at a glance:

  • £37
  • For 100mm filter systems
  • Holds ten filters
  • Front pocket for filter holder
  • Multiple carrying options
  • kasefilters.com

If you buy a high-quality 100mm filter holder system, chances are it’ll come with a padded case to hold the holder, polariser, and lens rings. But when it comes to those all-important square filters, you’re usually expected to carry them separately in their individual protective cases, which can add up to considerable bulk. Thankfully Kase has realised this isn’t an ideal solution and has done things differently. The Kase Soft Filter Bag 100mm offers a practical means of carrying your entire filter kit in one convenient package.

Kase Soft Filter Case 100mm

The Kase Soft Filter Case 100mm will accommodate your entire 100mm filter system in one bag. Image credit: Andy Westlake / Amateur Photographer

I first came across this bag when reviewing the excellent Kase Wolverine K9 100mm filter system. But it’s so good that it merits a standalone review.

Kase Soft Filter Bag 100mm key features:

  • Front pocket: This will hold most 100mm filter holders, along with lens adapter rings, etc.
  • Concertina design: Undoing the double-pull zip allows the case to open generously, giving easy access to your filters
  • Straps: A generously long adjustable shoulder strap is supplied, along with a shorter strap for hanging the case on a tripod
  • Tripod grip: A wrap on the back, with a velcro closure, allows the bag to be fixed to a tripod leg

So what makes this design stand out from the crowd? Firstly, it holds everything you need in a single, relatively compact case that measures approximately 18 x 14 x 7cm when full. It’s robustly made and provides good protection for your expensive, yet fragile filters, while still making them easy to access.

Kase Soft Filter Case 100mm attached to tripod.

The case attaches to your tripod, giving easy, practical access to your filters while shooting. Image credit: Andy Westlake / Amateur Photographer

An adjustable shoulder strap of generous length is supplied, which can be swapped out for a shorter strap that allows the bag to be easily attached to a tripod while shooting. A wrap-around grip on the back is designed to secure it to one of your tripod’s legs, but I find it equally useful for attaching the filter case to the shoulder strap of my main camera bag.

Kase Soft Filter Case 100mm attached to camera bag

The Kase Soft Filter Case 100mm can be attached to your camera bag’s strap. Image credit: Andy Westlake / Amateur Photographer

Your filter holder and lens adapter rings simply drop into the front pocket. While this is obviously designed to take Kase’s K9 holder, I’ve found that most other brands will fit, too. There’s space inside the main section of the bag for ten filters up to 100x150mm in size, protected within softly lined pockets.

Kase Soft Filter Case 100mm contents

The case will accommodate your filter holder, lens adapter rings, and up to ten filters. Image credit: Andy Westlake / Amateur Photographer

Each pocket has a little tab so you can mark which filter goes where, with a sheet of pre-printed labels provided in the box. A good-sized top flap provides protection against the elements and tucks neatly out of the way while you’re shooting.

Kase Soft Filter Bag 100mm: Our Verdict

I dislike filter systems that force you to carry multiple cases, and much prefer being able to pick up a single bag that holds everything together. So I’m a big fan of the Kase Soft Filter Bag 100mm. It organises your kit neatly, is very practical to work from, and has space for as many filters as most photographers will probably need. In fact, I like it so much that I bought one myself.

Amateur Photographer Testbench Gold - 5 stars

Also consider:

If you want a neat filter system case but are planning on carrying it inside a backpack, the Lowepro GearUp Filter Pouch 100 might fit the bill. It’ll hold ten filters inside, plus a holder in an external elasticated pocket.

Lowepro GearUp Filter Pouch 100. Image: Lowepro

If you want to carry your filter kit within a backpack, the Lowepro GearUp Filter Pouch 100 is also worth considering. Image: Andy Westlake / Amateur Photographer

The Lowepro GearUp Filter Pouch 100 has an RRP of £54, but you’ll often find it cheaper.


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