Recently Artur reviewed a 1200TVL camera, and compared it to a 600TVL. Just some more background knowledge on this topic.


Higher resolution camera normally also has worse lag, as it takes longer to process the better image (higher resolution).

However as most of our current video transmitter (VTX) are transmitting the video with PAL or NTSC analog signal, the resolution is defined such as for PAL the resolution is 720x576 px. So why can higher resolution still produce better image than lower ones? 


My guess is that because if you downscale (compress) higher resolution images it could still end up looking better. This is an example from Samuel posted in our FB group. So really the better image quality isn't from the resolution, but probably from post image processing (and therefore more delay in most cases).