Ärvd kamera, så vet inte om den fungerar.
Kan inte så mycket om den heller så lägger in information från annan källa.

”The B-8L was the first in a series of "Compumatic" cameras that allowed an easy method for determining proper exposure. The system consisted of a photo-electric selenium cell, galvanometer needle and adjustable guide needle (set according to film sensitivity between 10-40 ASA). The cell was moved into position behind the lens, before filming, by pressing a control trigger; the galvanometer needle then reacted to the light intensity. Proper exposure was indicated by turning the lens diaphragm until the two needles were aligned. The photo cell was automatically retracted as soon as the camera was started with the release button.

The compumatic series of cameras featured a newly shaped release button containing a name plate. Unfortunately, the name plate was simply glued on. As a result, these cameras can sometimes be found with the plate missing; it may diminish the appearance but it otherwise has no effect on the operation of the release.

In addition to the light meter, the B-8L featured a slight improvement over the B-8VS: a locking shutter control. The new plexiglass dial included a chrome latch that allowed the shutter to be secured in fully open (165 degree aperture) or half open (82 degree aperture) position."

Läs mer: http://www.bolexcollector.com/cameras/b8l.html