Flash shooting distance range in 1/300 TTL High-Speed Sync

When 1/300 TTL High-Speed Sync is selected in TTL Auto Flash mode, the guide number of the attached Speedlight (except for a Speedlight for F3) is limited to the values shown in the table below. Therefore, maximum flash shooting distance cannot be calculated from each Speedlight’s flash shooting distance scale or flash shooting distance range table provided.

ISO 100, m/ft., 20°C/68°F

Zoom-head

18mm

20mm

24mm

28mm

35mm

50mm

70mm

85mm

position

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Guide number

8/26

8/26

11/36

12/39

14/46

16/53

18/59

19/62

(m/ft.)

 

 

 

 

 

 

 

 

To obtain maximum flash shooting distance in 1/300 TTL High- Speed Sync:

Guide number

Flash-to-subject distance = ———————

f/stop

Example: Speedlight attached—SB-26, film sensitivity—ISO 100, zoom-head position—35mm, aperture—f/5.6

14

46

—— = 2.5m or

—— = 8.2 ft.

5.6

5.6

Therefore, the maximum flash shooting distance of the example is 2.5m or 8.2 ft.

•The minimum flash shooting distance can be obtained from the Speedlight’s flash shooting distance scale or flash shoot- ing distance range table provided.

•For film sensitivity other than ISO 100, multiply the following coefficient to the guide number provided.

ISO number

25

50

200

400

800

Coefficient

0.5

0.71

1.4

2.0

2.8

•To select 1/300 TTL High-Speed Sync, set the camera’s exposure mode to Shutter-Priority Auto or Manual, then set the TTL flash sync speed to 3oo with the Custom Setting #20 (page 90). Other settings are the same as the Automatic Balanced Fill-Flash (page 118).

•In 1/300 TTL High-Speed Sync, under-exposure warning may not appear on the Speedlight when flash has fired at maxi- mum output. Confirm exposure with the ready-light in the viewfinder.

•Since the 1/300 TTL High-Speed Sync is an unique setting, warning indications after flash is fired do not appear. Make sure to confirm the flash shooting distance range.

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Nikon 5, 1797 Flash shooting distance range in 1/300 TTL High-Speed Sync, ISO 100, m/ft., 20C/68F Zoom-head, Position
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1797, 5 specifications

The Nikon 5,1797 is a remarkable addition to Nikon's lineup of cameras, known for its impressive blend of advanced technology and user-friendly features. Designed for both amateur photographers and seasoned professionals, this camera shines in various shooting conditions, offering versatility and reliability for a wide range of photography styles.

One of the standout features of the Nikon 5,1797 is its high-resolution sensor. With a resolution that exceeds 24 megapixels, this camera captures stunningly detailed images that preserve color accuracy and dynamic range. The sensor is paired with Nikon's EXPEED image processor, which enhances image quality and ensures quick processing speeds, allowing photographers to shoot in rapid succession without lag.

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The camera’s build quality is designed to withstand the rigors of outdoor photography. With a weather-sealed body, photographers can confidently use the Nikon 5,1797 in challenging weather conditions without worrying about environmental factors damaging the camera.

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Overall, the Nikon 5,1797 combines cutting-edge technology, user-friendly features, and robust performance, making it an exceptional choice for anyone looking to elevate their photography or videography skills.
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