Hello.
I would like to mount on a Elgget f:1.5/13 mm C-Mount, a filter and a hood, but I do not know what is the exact diameter of the thread of the filter mount.
It is between 42 and 43 mm, but it is not 42 or 43 mm.
This is obviously in inches.
Do you know what is the exact diameter in inches ?
In advance, thank you for all informations.