Manual for B8L

Using the Lightmeter:

1. Set the galvanometer control knob with the index number corresponding to film sensitivity, lens focal length, and variable shutter opening.
2. Position the photo-electric cell by pushing the trigger.
3. Adjust the lens diaphragm until the mobile indicator on the galvanometer aligns with the guide-mark.
4. Run the camera.

Variable Shutter:

The variable shutter allows control over exposure time without changing filming speed, enabling effects like fades, depth of field adjustment, improved picture quality in strong light, and enhanced sharpness for moving objects.