Nikon D2H manual Exposure Mode, CPU Lenses, Depth-of-Field Preview, E4-Modeling Flash

Exposure Mode

Exposure mode determines how the camera sets shutter speed and aperture when adjusting exposure. Four modes are available: programmed auto (P), shutter-priority auto (S), aperture-priority auto (A), and manual (M).

CPU Lenses

When using a CPU lens equipped with an aperture ring, lock the aperture ring at the minimum aperture (highest f/-number). At other settings, the shutter release will be disabled and a blinkingwill appear in the aperture displays in the top control panel and viewfinder. Type G lenses are not equipped with an aperture ring.

Depth-of-Field Preview

To preview the effects of aperture, press and hold the depth-of-field preview button. The lens will be stopped

down to the aperture value selected by the camera in programmed auto or shutter-priority auto, or the value

chosen by the user in aperture-priority auto or manual

exposure mode, allowing depth of field to be previewed in the viewfinder (if the op- tional SB-800 Speedlight is attached, a modeling flash will be emitted).

b1—ISO Auto ( 182)

When On is selected for Custom Setting b1 (ISO auto), the camera automatically varies sensitivity in the range 200–1600 (ISO equivalent) to help ensure optimum expo- sure when the limits of the camera exposure metering system are exceeded (exposure modes P, S, and A) or optimum exposure can not be achieved at the shutter-speed and aperture selected by the user (exposure mode M). When sensitivity is altered from the value selected by the user, ISO-AUTOwill flash in the rear control panel and a flashing ISO-Awill be displayed in the viewfinder. In the camera photo information display for pictures taken at altered sensitivities, the ISO value will also be displayed in red. Note that noise is more likely to appear in photographs taken at higher sensitivities.

On can not be selected for ISO auto when sensitivity is set to HI-1or HI-2; similarly, HI-1or HI-2can not be selected when ISO Auto is on. If a flash is used when ISO auto is on, ISO will be fixed at the value selected by the user. If ISO auto is on when autoexposure bracketing is selected in exposure mode M, sensitivity will vary around the value selected by the user as required by the bracketing program.

e4—Modeling Flash ( 195)

If Off is selected for Custom Setting e4 (Modeling flash), the optional SB-800 will not emit a modeling flash when the depth-of-field preview button is pressed.

Taking Photographs—Exposure

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