Nauticam n85-n120 port adapter

For sale is a lightly used port adapter. Size N85-N120. This is the correct adapter if you want to use either the Zen 170 or Nauticam 180 dimes with a Sony A6xxx setup. 
 

includes rear cap and O ring.  
$200 shipped

Hello  I pm ed  you

Which N85 to N120 adapter is this?  35, 50 or 60mm? With or without a focus knob?

Thanks