Kase K8 Kit – 100mm Holder with Magnetic Slim Polarising Filter


The K8 Slim 100mm holder kit, complete with slimline Magnetic polarising filter. Simply put the best 100mm holder system on the market. Holds up to 3 x 100mm filters plus the polarising filter. Comes with adapter rings to fit 67mm, 72mm, 77mm, 82mm Lens Filter Sizes. The holder will work with most 100mm 2mm filters of any manufacturer.

I love the compact design and light weight of the K8 holder kit with magnetic CPL. No gimmicks, just what you need. – Kase Ambassador Alyn Wallace

SKU: K100K8POM Category: GTIN: 5060641970433


The Kase K8 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 Grad 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.

Key Features

  • Magnetic mounted geared polariser
  • Innovative lightweight design
  • Robust alloy construction
  • Simple to use in the Field

The Kase holder is precision CNC milled from the highest quality aviation grade aluminium with a matt anodised finish to reduce reflections. Both strong and lightweight, the holder uses a screw locking mechanism to prevent accidental removal.

In the Box

  • K100-Slim Filter Holder
  • 86mm Slimline Magnetic X-CPL (Polarising filter)
  • 2 x Geared adapter rings: 77-86mm & 82-86mm – Magnetic
  • 2 x Step rings: 67-82mm & 72-82mm
  • 2mm and 1.1mm filter slots – 2mm fitted as standard
  • Spare Foam Gaskets

To use your holder with other lens filter sizes up to 82mm, use step up rings. For example, to use the K8 system with a 58mm filter thread, you would just need a 58mm-82mm step up ring. Step up rings are standard design and available from many retail outlets.

Lens Compatibility

The K8 holder system is designed to be used at up to a maximum 16mm on a full frame camera, for any lenses wider than this that take an up to 82mm thread then please ask us for advice 1st. There are some exceptions to this rule and if you are not sure about your lens please ask for help.

Exception 1: Sony FE 16-35mm f2.8 GM Lens – When using the CPL and Holder you will get a very small amount of vignetting at 16mm, it is gone by 16.5mm. If not using the CPL it is fine at 16mm.

Exception 2: Nikon NIKKOR Z 14-30mm f4 FX Lens – Both the holder and CPL will show at 14mm to 15mm, but are fine at 16mm.

The Perfect Partnership – Kase Wolverine Filters

The K8 holder system is the perfect companion for the Kase Wolverine 100mm series of filters.

  • Toughened Pro HD Optical Glass
  • No Discernible Colour Cast
  • Scratch Resistant
  • Metallic Nano Coatings
  • Water and Dust/Dirt Repellent
  • Easy Clean


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