Adapt the Tiffin PRO100 adapter to fit your lens with this 72mm adapter ring. Perfect for larger prime or long zoom lens. Simply screw the adapter on to the front of your lens where the filter would normally screw in and attach the PRO100 using the quick release pin on the side. When connected, the PRO100 has the ability to rotate on the step ring which is perfect when using graduated filters to move the horizon. When finished with the adapter, simply disconnect. You can still leave the adapter connected in case you need to quickly snap the adapter back on. Tiffin PRO100 Series Camera Filter System is a sleek and innovative design, our filter holder enables you to use up to two Tiffin Award Winning 4mm thick glass Motion Picture/Television filters at once, giving you the opportunity to create images like never before.