Loose Adapter Thread

[prandyulo]

Would anyone have discovered a DIY solution to loose threads? My aluminum Patima housing can't keep its 67mm thread tight enough on my macros lens. I tried using lockthread and it worked for quite some time until I decided to remove the adapter (67 mm for AD lens) to accommodate regular 67mm macro lenses. I had a hard time removing it so I'm looking for alternatives to insert a new adapter which won't tighten and always comes loose.

 

[snowdog61]

You really need to add additional material then re-machine your thread form. If you can find some JB Weld, that would be my first attempt. I'd add just enough to fill the threads in a few areas then try to re-cut the threads using a trashed lens with good threads. you will likely need to cut some relief slots in the lens threads to allow chip clearance and act as a tap. If you are just looking at getting the adapter for the AD mount in permanently, then little JB Weld and screw it on and forget it. Good luck

 

[prandyulo]

Thanks for taking time to reply.

 

[Chris Ross]

Some sort of flip adapter, you could thread lock that on and the rely on the threads in the flip adapter?

 

[bvanant]

Another vote for a flip adapter. For adapter rings, you might try to use a 67-67 adapter
67-67 Step Spacer Tube Filter Extension Ring Adapter Male Female 67mm Pack of 2 | eBay

and glue the adapter into the camera.
Bill