Hello
hi, is the seller a George ? or an Igor ?
I bought one after some research on this board. You can look through my previous posts.
I've also emailed Schneider and yes, they are the same as the Digitar lenses except they have slightly different spacing. To convert an enlarging lens (I'm not sure if the early megavision lenses fall into this category as well) into a "modern" Digitar lenser, you need to send the lens back to Schneider to be mounted on a shutter which they need to put in some spacers optimize the lenses for photography instead of the darkroom.
I have the 90mm, without another lenses to compare it with, it does look pretty good to me.
Here are the replies from schneider, compiled from my exchange with them.
------------------------------------------
basically the Apo-Componon and Apo-Digitar is same construction.
He Digitar range is optimized for studio magnification range 1:10 to 1:20.
The Apo-Componon range is optimized for 10:1 magnification.
You should look to get a Apo-Componon that is already adjusted for photographic and not for enlarging purpose
Yes, if you will use the shutter between the front and rear element as usual you have to return to our factory for "spacing" otherwise you might lost up to 50% performance.
With the new shutter you will get a new scale for right iris adjust.
spacing is done with washers between the front cell of the lens and the shutter in steps of 1/100 to 1/1000
------------------------------------------