Guide no. table (iso 100), Troubleshooting – Ricoh GF-1 User Manual
Page 19
EN -
Guide No. Table (ISO 100)
Zoom
position
Flash output level
FULL
1/2
1/4
1/8
1/16
1/32
1/64
24mm
20
14
10
7
5
4
3
28mm
22
16
11
8
6
4
3
35mm
24
17
12
8
6
4
3
50mm
26
18
13
9
7
5
3
70mm
28
20
14
10
7
5
4
85mm
29
21
15
10
7
5
4
105mm
30
21
15
11
8
5
4
* All values given at ISO100. For values at ISO200 multiply by 1.4×; for
values at ISO400 multiply by 2×.
* When using slave flash, and with cameras other than Type R, the
zoom position is fixed at 24 mm.
Troubleshooting
The flash unit will not charge.
Check the polarity of the batteries. If a battery was inserted in
the wrong direction, insert it in the correct direction.
Check whether the batteries are empty. In such case, replace
with new batteries.
The flash unit will not fire.
Check whether the flash unit is correctly attached to the
camera. Insert the flash unit all the way into the hot shoe and
tightly close the lock ring.
If the hot shoe contacts are dirty, wipe them clean with a soft,
dry cloth.
If the flash was powered off automatically by the Auto Power
Off function, turn on the flash unit again.
The picture is over- or underexposed.
Check the flash mode. If it is set to Manual flash, set it to TTL
mode.
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