Direct-reading electroscope type pocket exposure meters???
Let's have a look at the exposure meter.
Light meter: An electrical exposure meter for measuring light intensity.
You'd better consult the exposure meter if you are not sure of the time for exposure.
Mode dial: Selects the following modes: Self-time, multi exposure, auto bracketing, continuous shooting, Normal, exposure metering user setting (center-weighted average metering or spot metering), previewAE lock user setting, and ISO user setting.
Indirect-reading capacitor type pocket exposure meters and accessory electrometers???