Sony HVL-F42AM - HVL-F42AM Istruzioni per l'uso Spagnolo
Sony HVL-F42AM - HVL-F42AM Istruzioni per l'uso Spagnolo
Sony HVL-F42AM - HVL-F42AM Istruzioni per l'uso Spagnolo
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ISO speed coefficient<br />
ISO100 ISO200 ISO400 ISO800 ISO1600 ISO3200<br />
1 1.4 2 2.8 4 5.7<br />
Photography distance range = Guide number × ISO speed coefficient<br />
÷ A<strong>per</strong>ture<br />
Ex) 35 mm-format or manual flash, power level: 1/1, focal length: 35 mm, a<strong>per</strong>ture:<br />
F4, ISO: 400<br />
25 (Guide number) × 2 (ISO speed coefficient) ÷ 4 (A<strong>per</strong>ture) = 12 m<br />
The flash light reaches to 12 m.<br />
When using the HSS flat flash (flash<br />
with HSS)<br />
The flash range becomes shorter than that of normal flash photography when the<br />
high speed sync is used. You can get the correct flash range using the following<br />
guide number table and an ISO speed coefficient.<br />
Guide number<br />
35 mm-format or manual flash (ISO100)<br />
Flash Coverage Settings (mm)<br />
Shutter speed<br />
16* 24 28 35 50 70 105<br />
1/250 4.7 8.8 9.1 9.5 10.9 13.4 16.4<br />
1/500 3.3 6.2 6.4 6.7 7.7 9.5 11.6<br />
1/1000 2.4 4.4 4.5 4.7 5.5 6.7 8.2<br />
1/2000 1.7 3.1 3.2 3.4 3.9 4.7 5.8<br />
1/4000 1.2 2.2 2.3 2.4 2.7 3.4 4.1<br />
1/8000 0.8 1.6 1.6 1.7 1.9 2.4 2.9<br />
1/12000 0.6 1.1 1.1 1.2 1.4 1.7 2.1<br />
* When the wide panel is attached.<br />
GB<br />
50
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