Kase offers a huge range of filters, with some designed to slot into the rear end of certain lenses, circular filters that attach via magnets and holder-mounted square and rectangular filters in a selection of sizes all the way up to 150x170mm.
Kase uses Wolverine Glass throughout its neutral density (ND) filter range because it’s both tough and scratch-resistant and delivers high optical performance. Sticking with the same material across the range means you get the same results whichever Kase Wolverine filter system you use. For this review, however, I’ve tested the Kase Wolverine 100mm ND1000 (10-stop)