Exposure

The procedure for shooting images at the desired brightness (exposure) by adjusting the shutter speed or aperture value is called “determine exposure”. The sense of dynamism and amount of background defocus in images to be shot vary depending on the combinations of shutter speed and aperture value even if the exposure is the same.

Adjusting the Shutter Speed

In Bmode, the range is from a maximum of 1/4000 to 15 seconds. In Dmode, the range is from a maximum of 1/4000 to 60 seconds.

See “The Control Range of the Shutter Speed” (A53) for more information.

Features Shooting

Faster 1/1000 s

Slower 1/30 s

Adjusting the Aperture Value

In Cand Dmodes, the range is from f/2 to 8 (wide-angle position) and from f/4 to 8 (telephoto zoom position).

Larger aperture (Small f-number)

Smaller aperture (Large f-number)

f/2

f/8

C Aperture Value (F-number) and Zoom

Large apertures (expressed by small f-numbers) let more light into the camera, and small apertures (large f-numbers) let less light.

The aperture value of the zoom lens of this camera changes depending on the zoom position. When zooming to the wide-angle position and telephoto zoom position, the aperture values are f/2 and f/4, respectively.

•When Fixed aperture (A99) is set to On, zooming can be performed with minimum changes in the aperture value.

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