AND THE MASSES REJOICE!!!!!!!!!!!!!!!!!!!!!!!!!
You are absolutely right - the central piece did just unscrew (although it took some tough action to budge it!) and, better still, my mint Rodenstock lens fits into it perfectly!!! I am delighted and so very appreciative to all of you, especially RJ (who I have been e-mailing seperately), Bob, Pentaxuser and Ian. I could not have got this far without all your help and generous dedication of time.
Pentaxuser - I hate to think you felt bad at all? It wasn't your fault I failed to check that detail. I just wrongly assumed they all took 39mm. Better still, thanks to you, I have an apparantly good enlarger and now with sweet quality lens stuck to it.
So yes, when we all meet up (which I hope we will one day) the beers are on me (at least the first one, anyway)!
Now all I need to do is replace the negative holder because it's kinda crap - it's a Durst Setoneg and one of the cropping sliders is buggered so it does not stay in place. That said, the bit with the sliders on say it's a Durst Aumet 45? This is no game for a beginner!!!
Thanks again everyone - you really are true stars.
Ted
You are absolutely right - the central piece did just unscrew (although it took some tough action to budge it!) and, better still, my mint Rodenstock lens fits into it perfectly!!! I am delighted and so very appreciative to all of you, especially RJ (who I have been e-mailing seperately), Bob, Pentaxuser and Ian. I could not have got this far without all your help and generous dedication of time.
Pentaxuser - I hate to think you felt bad at all? It wasn't your fault I failed to check that detail. I just wrongly assumed they all took 39mm. Better still, thanks to you, I have an apparantly good enlarger and now with sweet quality lens stuck to it.
So yes, when we all meet up (which I hope we will one day) the beers are on me (at least the first one, anyway)!

Now all I need to do is replace the negative holder because it's kinda crap - it's a Durst Setoneg and one of the cropping sliders is buggered so it does not stay in place. That said, the bit with the sliders on say it's a Durst Aumet 45? This is no game for a beginner!!!
Thanks again everyone - you really are true stars.
Ted