Metabones EF to E adapter mark iv - Can't change aperture

[WoodworkWolf]

Hey guys!

No matter what I try I can't seem to change my aperture on my a7s ii. I am using the metabones adapter, however, it is up to date with the latest firmware.

Anyone got any advice?

 

Cheers.

[foobar]

Do you mean the aperture does not change when you change it in camera? Or the aperture never changes even when taking photos? Metabones default "Green mode" is simulating Sony LAEA-3 adapter and it only closes aperture when taking a photo (like a SLR). If you want to aperture to change as soon as you change it on camera body (like native E-mount lenses), you can turn the Metabones into "Advance mode". Here is how http://www.metabones.com/article/of/green-power-save-mode.

[DogsAfire]

I may have this same problem. In my case, the camera does not see the lens at all and displays f-- 

The problem is intermittent and sometimes everything works perfectly, with the camera being able to see the lens and change the aperture. 

I have had some luck with fiddling around with the WO/CF (mode) button on the adapter, but I can never figure out which mode I'm in and eventually the problem returns.
I have written to Metabones and they have offered to examine and test my adapter for the cost of shipping - but shipping is to Hong Kong. I'm in the middle of a project that I bought the lens and adapter specifically for, so I told them I had to limp through the work before I could send the adapter back.

[maestrofilms]

Do you by any chance have a Tough E mount installed replacing the factory mount? When I installed one I had to screw it in pretty tight to get the contacts to touch.

Maybe try tightening your mount (the 4 screws) down just a touch, even if it's the factory mount.

[PKmode]

Don't know if you guys have seen this but I thought it may be helpful.

 

http://photography-on-the.net/forum/showthread.php?t=1473718