Help turned on the camera and all I see is black

[GrahamH]

To anyone that might know,does the Atomos Shogun record 4K from my AF100 ?

No, since the AF100 is not (and never has been) a 4K camera.

 

[drn]

this is the new "what's that clunk sound?"

turn off LENS CHECK in the OTHER FUNCTIONS menu.

Thanks that scared me too !