Overview

Kase K9 100mm Filter Holder utilizing a modular filter slot system, allows for the convenient use of up to three separately available 100mm wide, 2mm thick filters . The slot system can also be reconfigured so that the kit's filter holder accommodates up to three, separately available 100mm wide, 1.1mm thick filters along with the circular polarizer filter. 
In addition, it can be used with a 90mm magnetic CPL (need to be purchased separately), While in use, the circular polarizer filter magnetically fits within the filter holder system so it can be quickly installed, removed, or switched with a different Kase 90mm magnetic filter depending on the subject or changing lighting conditions.

Constructed for durability while remaining lightweight, use of the Kase K9 100mm Filter Holder Kit is easily accomplished by first screwing one of its included 77-82mm or 82mm adapter rings onto a lens or step-up ring with corresponding front filter threads. After being fitted onto an adapter ring, the filter holder's locking knob helps to provide a reliable, yet adjustable connection that allows the holder to be rotated 360°, which benefits the use of graduated neutral density or other filters that are enhanced by varied positioning. The included circular polarizer filter can then be placed within the filter holder assembly, followed by 100mm wide filters that are either 2mm or 1.1mm thick.

Material

Filter Holder: Aluminum Alloy
Step-Up Rings: Aluminum Alloy

Compatibility   

2.0mm-slots: Accepts up to One Kase 90mm Magnetic Filter Along with up to Three 100mm Wide, 2mm Thick Filters

1.1mm-slots: Accepts up to One Kase 90mm Magnetic Filter Along with up to Three 100mm Wide, 1.1mm Thick Filters

Package list:

K100-Slim K9 Holder
82 mm Adapter Rings;
77-82 mm Step Up Rings
1.1mm and 2mm card slots.