Cokin X-Pro Series Filter Holder Adapter Ring (77mm) Hoya A-77YA3 Both wrenches may also be

Both wrenches may also be used to separate up to two stacked filters on a single lens

Alligator clips (or Crocodile clips

UPC: 084017802703

the sensor can detect when an object passes between the uprights

EOS 1DX/1DC/1D MK lV

Cokin X-Pro Series Filter Holder Adapter Ring (77mm) Hoya A-77YA3 Both wrenches may also beEnables Use of Cokin X Pro Filter Holder Anodized Aluminum This 77mm X Pro Series Filter Holder Adapter ring from Cokin attaches to the lens and adapts it to fit the X Pro Series Filter Holder. Once the adapter and holder are attached, the lens filters can be slid into the holder and used accordingly. The adapter ring is made from aluminum, which has been anodized for durability. UPC: 085831520101 Lens Compatibility For a lens with a 77mm filter mount