Have you looked at the Sony VG-20, VG-30 and VG-900?
They're a very good family of video cameras, that use APS-c sensors, and FF in the VG-900, and take E-mount lenses, so any manual lens can also be adapted.
The stock lenses support continuous AF, as does the majority of the Sony E-mount lenses.
The downside to them for me, may be an upside for your usage - they don't have adjustable colour profiles, only 'video' colour, you record what you see on screen, and they have a range of audio options, from the onboard mics to add-on units for broadcast balanced audio input.
They have one major downside in 2018,... HD only, no 4K.
The only current cameras with similar feature set, and that would not need post-processing, would be the Panasonic G7, G85, new G9, up to the GH4, GH5 and GH5s.
---------- Post added 09-02-18 at 11:14 AM ----------
Originally posted by LensBeginner That's why I've always wished for a K-mount camcorder...
A Pentax version of the VG-30, with the KP sensor, and Sensor Shift, Pentax colour profiles, and a high data rate all-i-frame recording format, would be stunning.
Even though I now have an Aja Cion wearing my SMC primes,.. a Pentax Camcorder of this format, would easily become my favorite go-everywhere camera.
Last edited by PiDicus Rex; 02-08-2018 at 05:16 PM.