[Frameworks] single perf through double perf

[David Tetzlaff]

On Jun 28, 2010, at 4:25 PM, Pablo Marin wrote:

> hello all,
>
> a simple question that i'm sure has been made here before: is  
> possible to run single perf 16mm in an old bolex with double perf  
> bolts (or whatever their name is)?

I assume you mean sprockets? Anyway the answer is NO.


> Can those bolts be replaced?

Yes, if you can find the parts. But a camera with double-perf  
sprockets probably has a double perf claw. Single perf film won't work  
with that either, and replacing or modding the claw is not so easy.  
I've done it on a Filmo, but they're easy to take apart. A Bolex, not  
so much. Also, any Bolex old enough to have a double-perf claw, would  
I think, be so old as to predate the Bolex 'registration claw'  
movement, and I'd guess it would be more efficient to just look for a  
newer body than try to fix up that old one.

The tell-tale sign is the cameras with the old movement have an all  
silver speed setting knob, and the ones with the newer mechanisms have  
a black-ish speed knob.