For video recording, having a headphone port enables the videographer to use a headphone to monitor the output of the microphone accurately if you are usin the microphone on the camera for recording sound.
Here we have listed the Best 20 DSLR Cameras with Headphone Port sorted by score. Sony A99 II is at the top of our list with a overall Score of 87, followed by Nikon D850 and Nikon D780.