Why there is no video output when recording 4K ? Hollyland Tech December 08, 2020 12:01 Updated This is the Limitation caused by the DSLR/Mirrorless camera itself. To have it work normally, it is required to connect the camera first to the Atomos Monitor and then connect the Monitor to our Device. Besides, you could also choose to use our HollyView App to monitor the video feed directly. Related articles How to set them up when multiple sets of MARS 300 PRO are used at the same location ? Why there is no video display when using the system with a switcher ? Why there is no video when using SONY camera? How to install the transmitter and receiver to get the best performation ? How to choose different fan modes? Comments 0 comments Article is closed for comments.