Camera lens threads

[TitaniumBlue]

I am modeling an adaptor to mount lenses.

The thread I need to model is 67mm-0.5mm pitch.

While I see that it is possible to create a custom thread, I am curious to know what is the standard designation for this one.

I am inclined to believe it is a DIN metric standard, but I coulndt find it in the drop down menu.

There is also a 77mm-0.5mm in the same model...

[TMC.Engineering]

I think you will have to go with the custom route.  I did not see 0.5 pitch for any of the metric threads with large diamaters.  

I would also reccomend you going to vote for this feature request