WHAT IS VARI-PROGRAM?
Programmed exposure control enables the camera'scomputer to automatically adjust both lens aperture and shutter speed for the correct exposure. The N90 camera's Matrix Metering System determines the correct exposure, applying exposure compensation as deemed necessary by the computer's program. However, other factors can affect the picture, including the use of different shutter speeds and different apertures.
The N90'sAuto Multi-Program is designed to coordinate the selection of shutter speed and aperture for average situations. It guides the exposure control system into using reasonably high shutter speeds to avoid blur due to camera shake. The N90 incorporates a versatile Vari-Program System that gives you the option to choose from different programs, each designed to accommodate different picture-taking situations. Please review the concept behind and recommended use for each program, using each as described, or in a different way to express your own picture-taking creativity. Once you understand how each program operates, you'll be able to experiment, using each program for an application different from its originally intended use.
Please note that the effect achieved by using each Vari - Program can be reproduced with the use of other exposure control methods such as Shutter, Priority Auto, Aperture-Priority Auto and Manual. But with Vari-Program control, you allow the camera'scomputer to take care of all exposure control tasks while you concentrate on composition. This versatility is one of the highlights of the N90 camera'sadvanced exposure control system.
