Nikon F55 Instruction Manual - Page 42

Confirm, appears in the viewfinder, make sure the subject is, within the flash shooting distance

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Using Built-In Speedlight-continued 3 Confirm fi appears in the viewfinder, make sure the subject is within the flash shooting distance range and shoot. • The shutter cannot be released unless fi appears without blinking in the viewfinder. • fi in the viewfinder blinks approx. 3 sec. after full flash output. This may indicate underexposure has occurred. Check the focus distance, aperture or flash shooting distance range and shoot again. • When the subject is dark, the AF-Assist Illuminator automatically turns on to guide autofocus. See page 50 for details. • Available shutter speed and aperture in each exposure mode Exposure mode Available shutter speed Available aperture Page a 28 s Automatically set to 1/90 sec. 37 f 38 Automatically set h Automatically set to 1/90-1 sec. 39 P Automatically set to 1/90 sec.*1 54 S 1/90-30 sec.*2 56 A Automatically set to 1/90 sec.*1 58 M 1/90-30 sec.*2, -- (Time) Desired setting*3 60 *1 Shutter speed is prolonged up to 30 sec. with Slow Sync and Red-Eye Reduction with Slow Sync. *2 Shutter speed shifts automatically to 1/90 sec. when the shutter speed is set to faster than 1/90 sec. and the built-in Speedlight pops up. *3 Flash shooting distance range depends on the ISO speed of the film in use and aperture setting. In A or M exposure mode, set the aperture according to the flash shooting distance range table on the next page. 82 • Flash shooting distance range Flash shooting distance for the built-in Speedlight changes according to the film speed in use and aperture setting. ISO film speed Guide number Aperture value 25 50 100 200 400 800 6 8.5 12 17 24 34 - - 1.4 2 2.8 4 - 1.4 2 2.8 4 5.6 1.4 2 2.8 4 5.6 8 2 2.8 4 5.6 8 11 2.8 4 5.6 8 11 16 4 5.6 8 11 16 22 5.6 8 11 16 22 32 8 11 16 22 32 - Flash shooting distance range 2-8.5m 1.4-6m 1-4.2m 0.7-3m 0.6-2.1m 0.6-1.5m 0.6-1.1m 0.6-0.8m • The maximum flash shooting distance can also be calculated by dividing the guide number by the selected aperture value. Example: When f/2.8 is selected with ISO 100 film using the camera's built-in Speedlight, the maximum flash shooting distance will be: 12/2.8 = approx. 4.2m 83 Speedlight

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82
83
Speedlight
Exposure mode
Available shutter speed
Available aperture
Page
a
28
s
Automatically set to 1/90 sec.
37
f
38
h
Automatically set to 1/90-1 sec.
Automatically set
39
P
Automatically set to 1/90 sec.*
1
54
S
1/90-30 sec.*
2
56
A
Automatically set to 1/90 sec.*
1
58
M
1/90-30 sec.*
2
,
--
(Time)
Desired setting*
3
60
*1
Shutter speed is prolonged up to 30 sec. with Slow Sync and Red-Eye Reduction with Slow
Sync.
*2
Shutter speed shifts automatically to 1/90 sec. when the shutter speed is set to faster than
1/90 sec. and the built-in Speedlight pops up.
*3
Flash shooting distance range depends on the ISO speed of the film in use and aperture
setting. In A or M exposure mode, set the aperture according to the flash shooting distance
range table on the next page.
• The shutter cannot be released unless
fi
appears without blinking in the
viewfinder.
•
fi
in the viewfinder blinks approx. 3 sec. after full flash output. This may indicate
underexposure has occurred. Check the focus distance, aperture or flash shooting
distance range and shoot again.
• When the subject is dark, the AF-Assist Illuminator automatically turns on to guide
autofocus. See page 50 for details.
Using Built-In Speedlight
—continued
3
Confirm
fi
appears in the viewfinder, make sure the subject is
within the flash shooting distance range and shoot.
•
Available shutter speed and aperture in each exposure mode
•
Flash shooting distance range
Flash shooting distance for the built-in Speedlight changes according to the
film speed in use and aperture setting.
• The maximum flash shooting distance can also be calculated by dividing the guide
number by the selected aperture value.
Example: When f/2.8 is selected with ISO 100 film using the camera’s built-in
Speedlight, the maximum flash shooting distance will be: 12/2.8 = approx. 4.2m
ISO film speed
25
50
100
200
400
800
Flash shooting
distance range
Guide number
6
8.5
12
17
24
34
—
—
1.4
2
2.8
4
2-8.5m
—
1.4
2
2.8
4
5.6
1.4-6m
1.4
2
2.8
4
5.6
8
1-4.2m
Aperture value
2
2.8
4
5.6
8
11
0.7-3m
2.8
4
5.6
8
11
16
0.6-2.1m
4
5.6
8
11
16
22
0.6-1.5m
5.6
8
11
16
22
32
0.6-1.1m
8
11
16
22
32
—
0.6-0.8m