Nikon 50DX Instruction Manual - Page 35

69

68

Miscellaneous

•

Microcomputer of the SB-50DX

The SB-50DX is electronically controlled by a microcomputer. In certain cases,

the microcomputer may not correctly control the SB-50DX even with fresh,

properly installed batteries. In the same way, incorrect indications may appear in

the LCD panel. In each of these cases, to resume operation, remove and

reinstall the batteries with the SB-50DX turned on.

•

If

--

blinks in place of zoom-head position indication

Troubleshooting

—continued

• Zoom-head cannot be set.

• Turn off the SB-50DX and camera, detach the

SB-50DX from the camera and reattach it, then

turn both units on. If operation is not resumed,

contact an authorized Nikon dealer or service

center.

•

Blinking ZOOM and mm indications in the LCD panel

Usable film speeds, usable apertures and flash shooting distance ranges in the

TTL auto flash mode are as follows:

(14mm zoom-head position with the wide-flash adapter)

For example, if you select f/8 with an ISO 400 film at 35mm zoom-head

position, flash shooting distance range would be 2.0-18 ft.

ISO film speed

Zoom-head position

25

50 10

0 200 400 800 1600

14mm

24mm

28mm

35mm

50mm

—

—

1.4

2

2.8

4

5.6

2.6-29

3.9-39

4.2-46

4.6-49

5.6-59

—

1.4

2

2.8

4

5.6

8

2.0-20

2.6-30

3.0-33

3.3-36

3.9-43

1.4

2

2.8

4

5.6

8

11

2.0-14

2.0-21

2.3-23

2.3-25

3.0-30

2

2.8

4

5.6

8

11

16

2.0-9.8

2.0-15

2.0-16

2.0-18

2.0-21

2.8

4

5.6

8

11

16

22

2.0-6.9

2.0-10

2.0-12

2.0-13

2.0-15

4

5.6

8

11

16

22

32

2.0-4.9

2.0-7.2

2.0-8.2

2.0-8.9

2.0-11

5.6

8

11

16

22

32

45

2.0-3.3

2.0-4.9

2.0-5.6

2.0-6.2

2.0-7.5

8

11

16

22

32

45

—

2.0-2.3

2.0-3.6

2.0-3.9

2.0-4.3

2.0-5.2

11

16

22

32

45

—

—

2.0

2.0-2.6

2.0-2.6

2.0-3.0

2.0-3.6

16

22

32

45

—

—

—

—

—

2.0

2.0-2.3

2.0-2.6

Aperture

TTL auto flash shooting distance

range (ft.)

TTL auto flash shooting distance range (ft.)

•

ZOOM

and

mm

blink when performing double-

flash operation with F70-series/N70 or PRONEA

600i/PRONEA 6i cameras; however this does

not indicate any malfunction. See “When using

the Nikon F70-series/N70 or PRONEA

600i/PRONEA 6i” on p. 42.

• When performing double-flash operation with

F80-series/N80-series cameras, Power Zoom

function (p. 16) may not operate properly in rare

cases. In this case

ZOOM

and

mm

blink in the

SB-50DX’s LCD panel; turn the SB-50DX power

off and then turn it on again.

Nikon 50DX Instruction Manual - Page 35

Troubleshooting, TTL auto flash shooting distance range ft.

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