A7sii with Zacuto z-finder pro problems

[airosol]

Hi everyone, first post here.

 

Hoping someone can help me with this issue:

 

When using my z-finder pro (that works perfectly with my 5d mark iii) with the A7sii, I find that the A7sii display items, like histogram, f-stop, shutter speed, etc, only display in the z-finder when shooting in 1080p. In other words, if I shoot at 60fps or 120fps at 1080p, I can see all the display items. But when I select 4K, I can only see the image I am shooting in the viewfinder and none of the other display overlays. So if I want to check my histogram or any other settings I have to look on the lcd screen of the camera. They will not display within the z-finder.

 

This has happened with a rental A7sii that I currently have. Am thinking about buying this camera but if I cannot get display overlays to appear in z-finder in 4K, it becomes less of an option as I would have no idea where my exposure is by looking into the z-finder. I would have to constantly check the back screen of the camera. 

 

Again, it works perfectly in any of the 1080p modes. Just not 4K. 

 

Does the hdmi signal out change somehow in 4K mode? I'm stumped.

 

Firmware for z-finder pro is the most recent version.

 

Any thoughts?

 

Thanks very much.

 

-Mark