The EVF35 is the a viewfinder designed to work with our popular VL35 4K monitor. This accessory makes your existing VL35 into a high quality electronic viewfinder that supports 4K. The EVF35 is made out of a soft touch plastic that is durable and lightweight. The viewfinder also incorporates a diopter that allows focus adjustments to acheive the sharpest picture from the VL35. The EVF35 makes your VL35 even more vesatile!