Measuring thread size.

**Kirk Gittings** · 29-Mar-2012, 15:22

I'll try that. Thanks.

**Jim Galli** · 29-Mar-2012, 15:32

Get a 55 - 62mm stepping ring. Remove material until it is a nice tight friction fit on the O. D. of the Cinephor. Tap it on. Add a drop or 2 of super glue if that makes you even happier.

**Michael E** · 29-Mar-2012, 15:40

Originally Posted by Jim Galli

Add a drop or 2 of super glue if that makes you even happier.

It doesn't look as neat, but hot (melt) glue comes off metal without a trace.

Michael

**John Jarosz** · 29-Mar-2012, 16:29

Originally Posted by Kirk Gittings

So I get 46.59 on the inside so adding .060 gives me 47mm ish. No such animal out there right?

Hmmm. My bad. I was assuming you were measuring in inches (because it's probably an imperial (inches) thread (but I'm guessing). The height of the thread form is about 3/4 of a mm (.030"), so I'd add 1.5 mm to your measurement which should be more like 48mm.

I like the hot glue idea. It will pop right off when you're done

**seawolf66** · 31-Mar-2012, 10:20

Kirk here is something I keep handy to help me with treads on lenses ,
or I could go the supply house for machine shop equipment and the steel thread indicators

**Kirk Gittings** · 31-Mar-2012, 10:48

That's very cool Lauren.

**Leonard Evens** · 31-Mar-2012, 11:03

I don't know if it will help, but there are tools called thread gauges to measure thread sizes. Try google to see if you find something which might be useful.