Olympus zm2000qdk, OM-2 manual Diagram of light path in conventional SLRs

Models: OM-2 zm2000qdk

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THE MOST IMPORTANT FEATURE OF THE OM-2-TTL DIRECT(OTF)LIGHT MEASURING

Diagram of light path in conventional SLRs

 

Light Sensor

Before shutter release

Position

Stray

Light

The instant the shutter has been released

(A memory device controls the shutter speed, based on the light reading taken before actual exposure.)

In the automatic mode, the OM-2 measures the subject brightness very differently from any other automatic camera — faster and with much more accuracy. With the OM-2, light entering the lens is measured directly at the film plane by the sen-

Diagram of light path in OM-2

Before shutter release

The instant the shutter has been released

Light Sensor Position

sors at the precise moment the film is being ex- posed. When sufficient light has reached the film, the electronic brain senses the information and instantly closes the shutter.

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Page 48
Image 48
Olympus zm2000qdk, OM-2 manual Diagram of light path in conventional SLRs