How to read the EV range chart, Full-aperture metering

EV RANGE OF THE CAMERA-continued

•How to read the EV range chart

The chart indicates the EV (for ASA 100) vs. shutter speed range.

To determine the shutter speed range, note that the bars in section A indicate the responsive range of the EL2's photosensitive SPD element (i.e., f/8 covers EV 6 ~ 23, f/16 covers EV 8 ~ 23) for the f-stop in use.

In Section B, note the f-stop being used on the appro- priate ASA scale. For example, at ASA 25 with the lens set at f/8, we follow the line diagonally and find that it intersects EV 5 at eight seconds, and at EV 18 runs off the scale at 1/1000 second. ASA 100 at f/8 runs from EV 3 at eight seconds to EV 16 at 1/1000 second.

In any case, it is generally the low end which requires a careful check. The wide exposure (EV) range of the Nikon EL2 will encompass most lighting situations.

It is only under dim-light or rare bright-light situations that any special attention need be paid.

Full-aperture metering

The metering range is determined by the bars (Section A), f/number range in appropriate ASA scale (Section

B)and shutter speed (8 ~ 1/1000 sec, Section C). For example, the area encompassed by the heavy lines dem- onstrates a combination of an f/1.4 lens and ASA 100 film.

Stop-down metering

The metering range is determined by the bars (Section A), f/number in appropriate ASA scale (Section B) which corresponds to the stopped-down aperture in operation, and shutter speed (8 —1/1000 sec, Section

C). The broken line demonstrates stop-down measure- ment in the case of an f/8 lens combined with ASA 100 film, indicating a range from 1 sec. to 1 /1000 sec.