The Zacuto Z-finder 16x9 Sun Mask lessens the amount of sunlight passing through the Z-Finder to the EVF screen or camera LCD. This will lessen the likelihood of having sun damage on your EVF or camera LCD screen. This does not protect 100% so users must still use the lens cap when working outside every time the Z-Finder is not in use.
The Z-Finder 16x9 Sun Mask is included with all EVF units as well as every Z-Finder. To install, simply take off your eyecup and anti-fog shield. Place anti-fog shield on the lens and then place the 16x9 sun mask on top of the ant-fog shield. Make sure the sun mask is centered. Re-install your eyecup and you are ready to shoot.