Second that!
With this a shield hdmi adapter you can connect the Raspberry pi, or the direct feed out of the camera to a DSI smart phone panel (iphone 4, LG, Samsung). Cheap and High quality. all its missing for the perfect field monitor is the software (ok maybe more then the software but its still sick)
https://hackaday.io/project/364-mipi-dsi-display-shieldhdmi-adapter
With this a shield hdmi adapter you can connect the Raspberry pi, or the direct feed out of the camera to a DSI smart phone panel (iphone 4, LG, Samsung). Cheap and High quality. all its missing for the perfect field monitor is the software (ok maybe more then the software but its still sick)
https://hackaday.io/project/364-mipi-dsi-display-shieldhdmi-adapter