A light bulb in my Bolex H16 Rex 3 ???

[Kenichi Rei]

Hello!

I recently bought a Bolex H16 Rex 3 and it has a sync socket on the lid and a spike with a tiny hole in the back side of the lid.

I connected a flash on it but it doesn't flash, so I opened it and found there is something like a light bulb inside.

Does anyone know what it does?

[Dom Jaeger]

It’s a “bloop light”, to fog a few frames as a form of in-camera slate. They were used to sync with sound recorders like Nagras back in the day.

[Phil Rhodes]

51 minutes ago, Dom Jaeger said:

It’s a “bloop light”, to fog a few frames as a form of in-camera slate. They were used to sync with sound recorders like Nagras back in the day.

Is that a little neon tube?

[Kenichi Rei]

3 hours ago, Dom Jaeger said:

It’s a “bloop light”, to fog a few frames as a form of in-camera slate. They were used to sync with sound recorders like Nagras back in the day.

oh, I see.

I can’t find this on other Bolex but is this was original or someone modified it?

 

2 hours ago, Phil Rhodes said:

Is that a little neon tube?

It doesn’t have filament inside so I think it is some sort of discharge lamp like neon tube.

[Dom Jaeger]

I’d say it was an after-market modification. No idea what sort of bulb they used.

[Philip Forrest]

I bought a Filmo 70-KRM with one of these built into the door. It was placed there by a 3rd party years after the camera was made. 

Phil Forrest