I am using the ATEM switcher. I have 2 cameras and a computer coming in with HDMI and 1080 resolution. I have 1 camera that has an analog RCA video cable ran. I wanted to purchase the Mini Converter Analog to SDI to connect this camera to the ATEM switcher. Will this upscale the quality so that it is able to be connected or do we have to have all the cameras on the same resolution to be able to use them.