I have recently bought a Cineroid EVF4L and i use it with a Canon 5D MK2 in the composite way because de 5D not support the hdmi way without cuting. I appreciate very much this supply but i have a alternating problem with the display. Sometimes i have the full frame in the viewfinder and its ok. Sometimes i loose the low of the picture and i cant see anymore the indications of the camera ( signal batterie, indicator of the exposition, etc...) Have you got an explanation about this problem and what can i do for keeping always the full image?....
Thank you for giving me a quick response.