The JVC VF-HP790 8.4" LCD Studio Viewfinder is designed for use with studio-configured GY-HM790 and GY-HM700 professional camcorders, mounting to an optional KA-790 Studio Sled to deliver large, sharp 1024 x 768 video images. The fully digital interface provides safety markers, focus assist, and clip management, and is complemented with a large tally indicator and screen hood. Rounding out the list of professional features is an HD-SDI input that lets you monitor external signals.