Elgato on Twitter: "Camcorders, DSLRs, action cams, mobile devices — capture any clean HDMI signal in 4K or Full HD. Check out our compatibility list to see if your camera will work
Atomos Ninja Flame 7" 4K HDMI Recording Monitor Full Kit **USED VERY GOOD** | eBay
Atomos Shinobi HDMI – Thomann United States
Amazon.com: Atomos Ninja V+ 5" 8K HDMI H.265 Raw Recording Monitor Bundle with Accessory Kit for Shinobi SDI and Ninja V Monitors and Anti-Static Screen Cleaning Wipes : Electronics
Using an External HDMI Recorder with a Canon 5D Mark IV
Capturing HDMI Video | DSLRBodies | Thom Hogan
Compatible Cameras
Ninja V , 5-inch 4K HDR HDMI Monitor-Recorder from Atomos