Sensitivity (ISO Equivalency)

Reacting Faster to Light

Taking Photographs

“Sensitivity” is the digital equivalent of film speed. The higher the sensitivity, the less light needed to make an exposure, allowing higher shutter speeds

or smaller apertures.

Sensitivity can be set between values roughly equivalent to ISO 200 and ISO 1600 in steps equivalent to 1/3 EV. Sensitivity can be adjusted using the ISO option in the shooting menu or by pressing the ISO button and rotating the main command dial.

—Sensitivity (ISO Equivalency)

The ISO Menu

1 Highlight ISO in the shooting menu ( 132) and press the multi selector to the right.

2 Highlight the desired option and press the multi selector to the right. The shooting menu will be displayed.

Optimize image N

Long exp. NR

 

 

 

OFF

 

 

 

 

 

 

 

 

 

 

Image quality

 

NORM

 

 

 

 

 

 

 

 

 

Image size

 

 

 

 

White bal.

A

ISO

200

ISO

 

200

OK

250

 

320

 

400

 

500

 

Sensitivity

The higher the sensitivity, the more likely pictures are to be subject to “noise” in the form of randomly-spaced, brightly-colored pixels.

5—ISO Auto (142)

When On is selected for Custom Setting 5 (ISO auto), the camera will automatically vary sensitivity from the value selected by the user to help ensure optimum exposure.

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Nikon D70 manual Sensitivity ISO Equivalency, Reacting Faster to Light, ISO Menu