The Auto-Leader is a very handy carry around exposure meter. It allows the exposure to be measured very easily thanks to its pointer-tracking system which is based on the guide mark.
The Sekonic L-188 is a compact carry-around exposure meter that utilizes a unique pointer-tracking system based on a guide mark to easily measure subject brightness. It features multiple scales for ASA/DIN film speed, shutter speed, f-number, and movie frame rates.
To operate the device, users must first install a 1.5V silver oxide battery and check its voltage using the dedicated button. Film speed is set by rotating the knob to align marks in the window. Exposure is read by pointing the sensor at the subject and adjusting the dial ring until the pointer aligns with the center of the guide mark.
| Measurement system | Reflected light system |
|---|---|
| Measurement range | EV3 to 18 (ASA 100) |
| Angle of incoming light | 65° |
| ASA scale range | 6 (9) to 12000 (42) |
| Shutter speed range | 8 to 1 /2000 sec. |
| Dimensions | 81x 52x 19.3mm |
| Weight | 50 g (incl. battery) |
The unit requires a 1.5V silver oxide battery with the G13 AS designation.
Depress the battery check button; if the needle does not point to the correct value, replace the battery.
Point the sensor at the subject and rotate the dial ring until the pointer aligns with the center of the guide mark.