Schneider Componon-S Problem

[mattk]

Schneider Componon-S 150mm I recently aquired was on a Beseler lens board. The lens was too pretty not to play with so I took it off the lens board. Long story short I reassembled the lens' rear element without the lens board and now the whole thing is jammed up. I can't get it loose! I won't be printing 4x5 for a while but it bothers me that its not right. It appears that there are still threads that would allow it to be mounted with a jam nut, but the opening on the lens board is to small to accept the lens.

Signed,
A big kid who can't resist playing with his new toys.

 

[Petzi]

I never jammed up a lens, you had to apply a lot of force I guess?
I don't see how you could unjam it without correct application of force.

 

[mattk]

No extreme force was used, just spun it on. What to do what to do.

 

[richard ide]

Try using a couple of wide rubber bands for additional grip.

 

[Bruce Osgood]

I've found when I've jammed a brass filter ring on a lens that cupping it in my hand to raise the temperature and using a little evenly dispersed force from the flat of my palm will loosen it.

 

[mattk]

I like the rubberband idea and the use of small amounts of heat. If it doesn't work, I'll just send it out to Schnieder.

 

[mattk]

All Hail to Infinite Knowledge Base of APUG!

All Hail the Infinite Knowledge Base of APUG!

The rubberbands worked! Amazing the amount of torque I could get with one little rubberband! I am storing that one away for a multitude of puposes.

Thank you Richard!

 

[richard ide]

You are most welcome.

 

[Petzi]

Clean the thread before re-assembling the lens. The is probably some fine swarf in the thread.