Nikon D2HS D2Hs User's Manual - Page 97

Taking Photographs-Exposure 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 blinking will 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 (modes P and S) or the value chosen by the user (modes A and M), allowing depth of field to be previewed in the viewfinder (if an optional SB800 or SB-600 Speedlight is attached, a modeling flash will be emitted). b1-ISO Auto ( 186) 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 exposure 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-AUTO will flash in the rear control panel and a flashing ISO-A will 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-1 or HI-2; similarly, HI-1 or HI-2 can 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. b7-Fine-Tune Exposure ( 189) Optimal exposure can be fine-tuned separately for each metering method (note that the exposure compensation icon is not displayed when exposure is fine-tuned). e4-Modeling Flash ( 197) If Off is selected for Custom Setting e4 (Modeling flash), the optional SB-800 and SB600 will not emit a modeling flash when the depth-of-field preview button is pressed. 83