Amerline Extinction meter light meter cine movie, antique vintage camera photo

Maker: Amerline
Circa: 1947
Cell type: Optical/Extinction
Measure type: Reflecting / Averaging

The calculator is a two-step affair; two dials, and inner (red) and an outer (black and white). You start with the inner dial and set the pointer up against your film speed (which tops off at ASA 200, which says something about how old this is). Then you pick the lighting condition on the outer dial (e.g. “Bright”) and put its pointer next to the letter that’s just barely visible on the scale. So for instance, at ASA 100, a bright day set at letter E gives you 1/100th @ f/11.

Nice meter. It’s shaped to fit the hand nicely, and the calculator window is fairly easy to read.