Nikon os Speedlight SB-102 - Manual (Page 23)

Example 2:
When shooting a subject underwater at 4m (13ft) with
the wide-flash adapter while usihg ASA/ISO 100 film,
you must use f/2.8.
When several f/stops are useable at a specific flash-
to-subject distance, make your seiection by taking the
desired depth of fieid and speedlight recycling time into
consideration.
Example 3:
When shooting a subject on iand at 2m (6.6ft) without
the wide-flash adapter while using ASA/ISO 100 film
and you want the largest depth of field possible, select
f/16. If you want to minimize recyciing time as much as
possible, select f/2.8.
In the TTL automatic mode, the SB-102’s useable
ASA/ISO film speed range is from ASA/ISO 25 to 400,
its useable aperture range is from f/2.8 to f/22, and its
fiash-to-subject coupiing distance range is from 0.3m
(1 ft) to 22m (72.2ft). However, the reiationship between
the useabie aperture range and the fiash-to-subject
coupiing distance range varies according to the
ASA/iSO speed of the fiim in use, the type of photo­
graphy (on iand or underwater), and whether or not the
wide-fiash adapter is being used.
TTL Auto Shooting Range
Unit: m (ft)
400 25
On land
Without adaptor
On land
With adaptor
Underwater*
Without adaptor
Underwater*
With adaptor
2.8 — — — — 4 to 22 (13 to 72) 3 to 16 (9.8 to 52) 2 to 11 (6.6 to 36) 1.4 to 8 (4.6 to 26)
4 2.8 — — — 3 to 16 (9.8 to 52) 2 to 11 (6.6 to 36) 1.4 to 8 (4,6 to 26) 1 to 5.6 (3.3 to 18)
5.6 4 2.8
_
— 2 to 11 (6.6 to 36) 1.4 to 8 (4.6 to 26) 1 to 5.6 (3.3 to 18) 0.7 to 4 (2.3 to 13)
8 5.6 4 2.8 — 1.4 to 8 (4.6 to 26) 1 to 5.6 (3.3 to 18) 0.7 to 4 (2.3 to 13) 0.5 to 2.8 (1.6 to 9.2)
11 8 5.6 4 2,8 1 to 5.6 (3.3 to 18) 0.7 to 4 (2.3 to 13) 0.5 to 2,8 (1.6 to 9.2) 0.3 to 2 (1 to 6.6)
16 11 8 5.6 4 0.7 to 4 (2.3 to 13) 0.5 to 2.8 (1.6 to 9.2) 0.3 to 2 (1 to 6.6) 0.3 to 1.4 (1 to 4.6)
22 16 11 8 5.6 0.5 to 2.8 (1,6 to 9.2) 0.3 to 2(1 to 6.6) 0.3 to 1.4 (1 to 4.6) 0.3 to 1 (1 to 3.3)
— 22 16 11 8 0.3 to 2 (1 to 6.6) 0.3 to 1.4(1 to 4.6) 0.3 to 1 (1 to 3.3) 0.3 to 0.7 (1 to 2.3)
— — 22 16 11 0.3 to 1.4(1 to 4.6) 0.3 to 1 (1 to 3.3) 0.3 to 0.7 (1 to 2.3) 0.3 to 0.5(1 to 1.6)
* These figures should only be used as a guide because flash-to-subject coupling distance ranges are affected by the existing conditions
(water quality, surroundings, subjects, and so on). For best results, test-fire the flash before actually shooting.
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