Gulp! An awful lot of sensor is exposed when the lens is removed. The 44x33 mm CMOS has an effective pixel count of 51.4 million.
Dual SD memory card slots are both compatible with UHS-II speed devices.
Main connection bay includes micro-USB, Type D HDMI and wired remote trigger terminals. Stereo audio in/out are alongside.
As on the X Mount cameras, the focus modes are selected manually via an external switch… which is at the rear of the GFX 50S.