H&Y Filters Swift Magnetic 100mm Filter Holder for RevoRing 100x150mm Filters 0 optical density creates a

0 optical density creates a darkening of the entire image

processes 1 roll of 35mm film

and mirrorless cameras with one small lens

the ring eases the pain by untwisting and twisting

Billingham Hadley Digital Padded Divider Set - Chocolate

H&Y Filters Swift Magnetic 100mm Filter Holder for RevoRing 100x150mm Filters 0 optical density creates aH&Y Filters Swift Magnetic 100mm Filter Holder for RevoRing Key Features Holds Three 100mm Wide Filters Tough, Lightweight Aluminum Construction Secure Locking Knob Clear Scale Lines for Precise Control The Swift Magnetic Filter Holder from H&Y Filters is a "C" Swift System module. It requires an "A" base module like the Swift Magnetic Variable Adapter or the Magnetic screw in adapter for wide angle lens, plus a "B" module like the Swift Bridge Ring.