Mounting lens without the original flange~

[alex from holland]

Machining a new flange wasn't an idea. Sure he knew that himself....

[premortho]

I wondered if that would work! Thanks for telling us it does.

[premortho]

My highly prized 150/5.6 EL Nikkor came,as they often do,without the retaining ring. I greased up the threads with petroleum jelly,and molded Epoxy Putty into a collar. The jelly allowed the putty to press into the threads without bonding,so the lens can be unscrewed if needed.

I've wondered if that would work! Thanks for the confirmation.

[Lightbender]

I use a hot glue gun. I even have black hot glue sticks.
The melted glue does not permanently stick to the metal. it works like a big rubber band except does not deteriorate like rubber.
If you want to remove it, just cut a notch in it and you can pull it off.

[pierre506]

Universal clamp from Chamonix~
Largest diameter 90mm for the barrel.

[jesse]

Universal clamp from Chamonix~
Largest diameter 90mm for the barrel.

I'm now using it, very good for barrel lens.