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カメラフラッシュ Nikon SB-800のPDF 取扱説明書をオンラインで閲覧またはダウンロードできます。Nikon SB-800 25 ページ。 Speedlight programming & using two or more in wireless mode
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1. I-Ttl Automatic Balanced Fill-Flash

Flash Value Lock (FV Lock)

Without using FV Lock

for an off-center subject

Shooting data

(Without FV Lock)

Camera: D2H

Focal length: 60mm

Speedlight: SB-800 set to

Aperture: f/8

FV Lock is unnecessary when

the main subject is centered.

Shooting data

(Without FV Lock)

Camera: D2H

Focal length: 60mm

Speedlight: SB-800 set to

Aperture: f/8

Using FV Lock, you can obtain the correct

exposure, when the subject is off-center and

positioned against a dark or light background.

Because the flash exposure remains locked in

even if you change the aperture or composition, or

zoom the lens in and out, you can obtain the

correct exposure for the main subject. Without FV

Lock, the main subject is overexposed due to the

dark background (p. 61).

Using FV Lock for an off-center subject

Shooting data

Camera: D2H

Focal length: 60mm

Speedlight: SB-800 set to

Aperture: f/8

(With FV Lock)