Flash Photography Care

(TTL) metering, you need not worry about adjusting the aperture. However, when an independent exposure meter is used, slight adjustment is required, depending on the focal length setting.

Diagram 1

4.5

(f3.9)

£3.3

I =

355070

*• Focal Length

Follow the instructions below when you take pictures with the speedlight unit because the maximum aperture ot this lens varies according to the focai length settings.

•In TTL automatic flash photography (when using the SB 18, SB 17, SB-16A/B, SB-15 or SB-20)

No adjustment is required because the variation in aperture is automatically accounted for. However, when the flash-to-subject distance is close to either the near or far limit of the auto shooting range corresponding to your working aper- ture, the working aperture may need to be changed as you zoom in or out.

•In non-TTL automatic or manual flash photography

Slight adjustment is required. You can obtain the roughly correct exposure over all focal length settings by using the intermediate setting between the green and brown aperture indexes. For perfect exposure, adjust the coupling aperture according to Diagram 1.

•In combination with the speedlight SB-19 or SB-E mounted on the Nikon FG-20 or EM

Make sure to set the shooting mode selector of the SB-19 or camera selector of a new-type SB-E at the "A" position. With an older-type SB-E, set it to "FE- FM". Otherwise, you can obtain the correct exposure only in the telephoto (70mm) setting, while your picture will be overexposed in the wideangle (35mm) setting due to the change of the maximum aperture of this lens. With negative-type film (for example, color negative film), this shift might not affect the picture itself, because it has a larger exposure latitude. But, it is not recommended to use slide film, because it has a narrower exposure latitude.