Pentax K-3 almost have clean HDMI output.
Video dataBased just on reviews.
Video output resolutions: 720p?
The screen is disabled when the HDMI is used. Also, you need to disable the information on display. Everything you do on the camera will be shown on the HDMI.
Video output ports: micro HDMI
Lens mount: Pentax K.
Crop factor: 1.5 in respect to a 35mm film. More crop factor means the sensor is smaller.
This camera uses the Pentax K mount to attach lenses to it, and there are a lot of cameras using the same lens mount.
Search cameras with the Pentax K mount.
What is clean HDMI
Clean HDMI output means that a camera is able to output a live video signal through HDMI without any graphics, marks, data, autofocus regions or any other thing that usually shows on the camera display.
The clean HDMI output only includes just the video, nothing more, so it can then be sent without any visual distractions to any other live video equipment (HDMI capture card, professional video switcher) for live video streaming or broadcasting.