Diopter Adjustment

Rotate diopter adjustment ring for adjustment of diopter.

Diopter adjustment ring

Adjust so that A or B on aperture or black circle indicating measuring area looks clear when observing object through finder.

Adjustment would be easy starting with 1˚ aperture where object near aperture looks blur.

AB

Make sure to adjust diopter before measurement. Diopter should be adjusted for the eyesight of the person who will be taking measurement. If diopter is not adjusted before focus measurement, correct measurement value may not be expect- ed. This is because the focus is actually off even if you think it is correctly in focus. In addition, if diopter is not correctly adjusted, you may see the aperture moving depending on viewing angle.

You sometimes see small black dots or stripes in internal finder. This happens due to characteristics of optical system, not dust or dirt in internal finder. It gives no effect on measuring perfor- mance.

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