Help getting Nikon Sigma 2.8 28-70 to work on a7s ii

[DarkBlades]

Hello,

 

I just got a a7s ii . Prior to getting the Camera, I got the Comix adapter, (the cheap one) so that I can use my Sigma 28-70 to work on the camera...

 

The Lens works, I can shoot... But I CANNOT, control the aperture . It cannot read the aperture.. 

 

This is the lens 

http://www.the-digital-picture.com/Reviews/Sigma-28-70mm-f-2.8-EX-DG-Lens-Review.aspx


I dont really care for any "auto focus stuff" I just want to be able to control the aperture as normal.  The cheapest solution is what im looking for.

 

Thanks

-blades 

[Username]

That lens appears to have no iris control ring. 

  

There are adapters, cheap but about $20 more 

than the very cheap ones, that have a lever to 

control the iris. You don't get an f/stop scale but 

usually there's a numbered scale from 1 to 8, to  

let you set any specific number of stops away

from wide open [or set wide open, too].   

   

Such iris control adapters move the mechanical 

iris actuator lever just inboard of the lens flange. 

Hopefully your lens has such a lever. I just this

minute checked a modern Nikkor 18-200 which 

lacks any iris ring, and find it still uses the same

old iris actuator lever as Nikon used in 1960 :-)