Nikon N70 instruction manual Depth of field, Type AF Nikkor lenses, OX code, Exposure bracketing

Models: N70

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Depth of field

The zone of sharpest focus in front of, behind and around the subject on which the lens is focused. When this zone of sharpness is large, the depth of field is said to be deep; when it is small, the depth of field is said to be shallow. Depth of field varies according to numerous factors such as focal length, aperture, shooting distance, etc.

D-type AF Nikkor lenses

AF Nikkor lenses that send to the N70'smicrocomputer the Distance Information used for 3D Matrix Metering or 3D Multi- Sensor Balanced Fill-Flash (with Nikon SB-28/SB-27/SB-26/ SB-25 Speedlight).

Identified by the letter "0" which follows information on maximum aperture (e.g., AF Zoom-Nikkor 35-80mm f/4-5.60). All AF-S/AF-I Nikkor lenses are O-type.

OX code

Film information code printed on film cartridge. The N70, when set to automatic film speed setting mode, senses the film speed (ISO 25 to 5000) of OX-coded film when it is loaded.

EV

Exposure Value: A number representing the available combinations of shutter speeds and apertures that give the same exposure effect under conditions of similar scene brightness and ISO.

At ISO 100, the combination of a one-second shutter speed and an aperture of f/1.4 is defined as EV 1.

The camera may be used only within the EV range of the exposure meter. For example, with the N70, the exposure metering range is from EV -1 to EV 20 for Matrix metering and Center-Weighted metering, at ISO 100 with an f/ 1.4 lens.

Exposure bracketing

Shooting the same subject at a range of different exposures. The N70 camera provides All Mode Exposure Bracketing and Flash Exposure Bracketing.

Exposure compensation

Exposure compensation for available light is activated by changing shutter speed and/or lens aperture- by Auto exposure lock button, by exposure compensation function or by exposure bracketing.

In flash photography with a Nikon-dedicated TIL Speedlight, exposure compensation can also be performed by varying the amount of flash output. (See "Flash Output Level Compensation. ")

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Nikon N70 instruction manual Depth of field, Type AF Nikkor lenses, OX code, Exposure bracketing, Exposure compensation