Notes on Optional Speedlights

Refer to the Speedlight manual for detailed instructions. If the Speedlight supports the Creative Lighting System, refer to the section on CLS-compatible digital SLR cameras. The D70S is not included in the “digital SLR” category in the SB-80DX, SB-28DX, and SB-50DX manuals.

The shutter will synchronize with an external flash at speeds of 1/500 s or slower.

i-TTL and Auto Aperture (AA) flash control are available only with CPU lenses. Selecting spot metering while an SB-800 or SB-600 Speedlight is attached activates standard i-TTL Flash for Digital SLR.

i-TTL flash control is available at all sensitivity (ISO equivalency) settings. If the flash- ready indicator blinks for about three seconds after a photograph is taken with i-TTL flash control, the photograph may be underexposed.

When an SB-800 or SB-600 is mounted on the camera, AF-assist illumination and red- eye reduction are performed by the optional Speedlight. With other Speedlights, AF- assist illumination is performed using the AF-assist illuminator on the camera ( 72).

Auto power zoom is available only with SB-800 and SB-600 Speedlights.

In P,

,

,

,

,

,

, and

modes, the maximum aperture (minimum f/-number)

is limited according to sensitivity (ISO equivalency) as shown below:

 

 

 

 

 

 

 

 

 

 

 

Maximum aperture at ISO equivalent of

 

 

 

Mode

 

 

200

250

320

400

500

640

800

1000

1250

1600

P,

,

,

,

,

,

4

4.2

4.5

4.8

5

5.3

5.6

6

6.3

6.7

 

 

 

 

 

 

8

8.5

9

9.5

10

11

11

12

13

13

For each one-step increase in sensitivity (e.g., from 200 to 400), aperture is stopped down by half an f/-stop. If the maximum aperture of the lens is smaller than that listed above, the maximum value for aperture is the maximum aperture of the lens.

When an SC-series 17, 28, or 29 sync cable is used for off-camera flash photography, correct exposure may not be achieved using i-TTL Balanced Fill-Flash for Digital SLR. We recommend that you choose spot metering to select Standard i-TTL Flash for Digital SLR. Take a test shot and view the results in the monitor.

In i-TTL mode, use the flash panel provided with your Speedlight. Do not use other panels such as diffusion panels, as this may produce incorrect exposure.

Accessories Optional—Notes Technical

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