The Kase K9 Slim 100mm holder kit is a revolutionary new Kase filter holder system for photographers which comes complete with a 90mm slimline magnetic circular polariser. It can hold up to 3 x 100mm filters plus the polarising filter and comes with adapter rings to fit 67mm, 72mm, 77mm and 82mm lens sizes. The holder will work with most 100mm 2mm filters of any manufacturer.
Improved Design
The Kase K9 holder has some small but perfect updates from the K8 holder, it is now compatible with modern lenses up to 14mm on a full frame system* without vignetting. We have also improved the ergonomics of the holder, adding small touches that improve on the overall ease of use whilst keeping it a simple innovative design. Finally we have managed to make it just a little bit lighter too, as we know you all want to keep weight down.
In the Box
- K9 100mm Alloy Filter Holder
- 90mm Slimline Magnetic X-CPL (Polarising filter)
- 2 x Geared adapter rings: 77-90mm & 82-90mm – Magnetic
- 2 x Step rings: 67-82mm & 72-82mm
K9 Holder System Key Features
- No vignetting even at wide angles
- Magnetic mounted geared polariser
- Innovative lightweight design
- Robust alloy construction
- Simple to use in the field
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The Kase K9 holder system has an innovative solution to the problem of using circular polarisers with slot-in systems. Rather than being mounted as the last filter, making it large and allowing the possibility of light being reflected back into the lens. The Kase solution is to mount the polariser at the back of the system, allowing you to have up to three Neutral Density or Graduated Filters in front of the polariser.
The polariser is mounted to a geared lens adapter ring, that is then turned simply by using a gear on the holder when attached to your camera. To mount the polariser, it’s simply a case of placing it into the geared ring magnetically, removing the hassle of trying to screw a polariser into place. The K9 holder is compatible with modern lenses up to 14mm on a full frame system* without vignetting.
The Kase holder is precision CNC milled from the highest quality aviation grade aluminium with a mat anodised finish to reduce reflections. Both strong and lightweight, the holder uses a screw locking mechanism to prevent accidental removal.
Other lens sizes
To use your holder with other lens filter sizes up to 82mm, simply use step up rings. For example, to use the K9 system with a 58mm filter thread, you would just need any 58mm-82mm step up ring, no need for special ones only compatible with our system.
*The K9 holder has been tested with the Nikon Nikkor Z 14-30mm F4 S lens and Sony 16-35mm F2.8 lenses and produces no visible vignetting.