Posts: 5895
From: Bristol. United Kingdom
Registered: Oct 2007
posted April 24, 2015 07:15 AM
I assume you mean the front thread and not the barrel. Without specialised equipment I best I can see (using two different tapes), is 45mm. Checked with a basic 2" lens.
[ April 24, 2015, 08:57 AM: Message edited by: Maurice Leakey ]
posted April 24, 2015 08:48 AM
Mark, if you are asking about the size of the part that goes Inside the projector, following the site I give below a link to, it should be 42,5 mm if there is no difference between 16 and super 16, as they precise it's a super 16 lens. http://www.cinemantika.fr/fr/objectifs/1220-objectif-eiki-50mm-super-16.html