Nikon D200 Брошюра - Страница 8

REFLEX

ACTION

When every

millisecond

counts

Shutter Mechanism

When any SLR takes a photograph, a mirror inside the camera must

raise and lower itself during exposure. This happens very quickly, and

can cause camera vibrations often called "mirror bounce." Nikon's

exclusive mirror balancer mechanism can be found in many of their

high-performance SLRs. It keeps mirror bounce to a minimum while

maintaining the shortest blackout time and quietest operation in its

class. This advantage is particularly beneficial during long exposures

and when using Macro lenses. Utterly sophisticated, this elegant

mechanism is yet another reason why you can shoot as high as 8 fps

with the utmost accuracy. And at Nikon, shutter units are tested under

the same conditions as actual pictures are taken: with the unit intact

and inside the camera body. The world's best photographers take it for

granted, but when we say that the D2x shutter is tested more than

150,000 times, we mean it.

Conceptual image of pendulum

Nikon's unique mirror balancer can be explained using

the pendulum in the illustration above. Pendulum P

swings down to Pendulum P'. When these two meet,

Pendulum P stops still exactly at position A'. This is

similar to how the reflex mirror and the mirror balancer

work in Nikon cameras.

Minimized Shutter Time Lag / Start-up time

If you're ready, your camera should be, too. Why? Because a

millisecond can make the difference between capturing a moment and

missing it. With the D2 series cameras, start-up time is near zero, and

shutter lag is the world's shortest at a mere 37 milliseconds. Now you

really can capture the action — just as you saw it.

milliseconds

Conceptual image of mirror balancer.