Filmshooting

I can't understand nobody is able to solve this problem !
We still can use it in manual mode with a cable release screwed in the black hole.
When you use Kodak 64 T, this is a 40 iso film in daylight. How to use a handheld meter like a Profisix Gossen to find the correct exposure ?

All is in the subject
Thank you a lot.

Yannick Michel

Hello again,
I tried to get information about Zeiss movie camera and a man from Zeiss gave me this answr:

"Dear Mr. Michel,

Thank you very much for your inquiry. We regret to tell you that your camera was not produced by us.
The company Zeiss Ikon discontinued the production of camera equipment ...

Hello from France !
I've just bought a Moviflex GS8 and have EXACTLY the sama problem as the man who post the first message. I try to find the solution but no idea for the moment.

Yannick MICHEL