H&Y Filters Swift Magnetic 100mm Filter Holder for RevoRing Swift Bridge Rings (B) Almost any mirrorless/CSC camera (e

Almost any mirrorless/CSC camera (e

Compact daylight-type panel light for soft and even illumination

It is equipped with a balance air valve

These are not flaws

H&Y Filters Swift Magnetic 100mm Filter Holder for RevoRing Swift Bridge Rings (B) Almost any mirrorless/CSC camera (eH&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.