Avo exposure meter, model 1. Photoelectric exposure meter with two brightness scales. To operate, moveable pointer attached to aperture/speed scale is aligned with cell pointer. Turning moveable pointer beyond the ends of the scale brings in or removes bright light baffle. Calibrated f/11.4-32, 60 seconds to 1/2000. Bs 5-40. No 2827. Automatic Coil Winder and Electrical Equipment Co.
Avo exposure meter model 1 leatherette case. Automatic Coil Winder and Electrical Equipment Co.
Avo exposure meter, model 1. Photoelectric exposure meter with two brightness scales. To operate, moveable pointer attached to aperture/speed scale is aligned with cell pointer. Turning moveable pointer beyond the ends of the scale brings in or removes bright light baffle. Calibrated f/11.4-32, 60 seconds to 1/2000. Bs 5-40. No 2827. Automatic Coil Winder and Electrical Equipment Co.
