Comment by josephg
What camera do you have? Why can't it autofocus when its not recording?
I believe you, but thats very silly.
What camera do you have? Why can't it autofocus when its not recording?
I believe you, but thats very silly.
Makes sense. On my sony camera (a7iv), it does continuous autofocus in video mode. You don't need to hit the record button - just set the focus mode to AFC (autofocus continuous) and it does its thing.
I also just tried connecting it as a webcam over USB, and it does continuous autofocus when set up like that too. I'm sure it uses more power, but the camera can power itself over the USB port while connected, so thats not a problem.
None of my stills cameras focused continuously out of the box, probably to save power (moving potentially heavy lens elements around requires energy). My Olympus mirrorless can be told to focus all the time, but it's not the default.
They -can-, they just don't, unless you specifically enable it for power reasons.
I can force my (canon) camera to autofocus while not recording but usually you want to avoid that. It really hits the battery because the lens is permanentely adjusting.
Most mirrorless cameras a hybrids and you usually do not need this feature while takting stills.