Was totally wrong about ultrasonic cleaners for old lenses

I always thought those cheap ultrasonic cleaners would wreck vintage glass, but a buddy in Chicago talked me into trying his setup. Ran a 1950s Elmar lens through 3 cycles at 40C and it came out cleaner than anything I've done by hand. Anyone else have good or bad experiences with these on older coatings?

2 comments

Log in to join the discussion

Log In

2 Comments

wendygarcia5mo ago

Gotta keep it under 50C though or you'll soften old lens cement.

2

wells.amy5mo ago

60C worked perfect on my old brass scope last week.

1