Nikon D70 manual Flash Sync Modes, Taking Photographs-Flash Photography, Flash Angle

Flash Sync Modes

The following flash sync settings are available in P, S, A, and M modes:

Flash sync mode

Front-curtain sync

Red-eye reduction

Slow sync

Slow sync with red-

eye reduction

Rear-curtain sync

Slow rear-curtain sync

Description

This mode is recommended for most situations. In P and A modes, shutter speed will automatically be set to values between 1/60 and 1/500 s.

Red-eye reduction lamp lights for approximately 1 s before main flash, causing pupils in subject’s eyes to contract and reducing “red-eye” effect sometimes caused by flash. Ow- ing to 1 s shutter-release delay, red-eye reduction is not recommended with moving subjects or in other situations in which quick shutter response is required. Do not move camera while red-eye reduction lamp is lit.

Flash is combined with shutter speeds as slow as 30 s to capture both subject and background at night or under dim light. Available only in P and A modes. Use of tripod is rec- ommended to prevent blurring caused by camera shake.

Combines red-eye reduction with slow sync. Available only in P and A modes. Use of tripod is recommended to prevent blurring caused by camera shake.

In S and M modes, flash fires just before shutter closes, creat- ing effect of stream of light following moving subjects. In P and A modes, slow-rear curtain sync is used to capture both subject and background. Use of tripod is recommended to prevent blurring caused by camera shake.

Taking Photographs—Flash Photography

Flash Angle

The flash angle of the built-in Speedlight can cover the field of view of a 20 mm lens. It may not be able to light the entire subject with some lenses or apertures (101).

ISO Auto

When On is selected for Custom Setting 5 (ISO auto; 142), sensitivity will automati- cally be adjusted as required for optimal flash output. If a high sensitivity is required, this may result in the background being overexposed when the flash is used at slow shutter speeds (slow sync), in bright daylight (daylight sync), or when the background is brightly lit.

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