M M O O D D E E S S W W I I T T C C H - Ikelite DS51 User Manual

M M O O D D E E S S W W I I T T C C H H
The DS51 Substrobe's mode switch has eight different positions: OFF, TTL/auto exposure
setting, and six manual exposure settings. Refer to illustrations on page 1 6.
O O F F F F P P O O S S I I T T I I O O N N ( ( Refer to illustrations on page 1 6)
(Fig.1 ) Shows the mode switch in the OFF position. The white indicator on the knob
aligns with OFF. Always turn the substrobe to OFF before connecting or disconnecting a
sync cord or opening the battery compartment.
T T T T L L / / A A U U T T O O E E X X P P O O S S U U R R E E P P O O S S I I T T I I O O N N ( ( Refer to illustrations on page 1 6)
(Fig.2) Shows the mode switch in the TTL (Thru-the-Lens) / auto exposure position.
From the OFF position, rotate the switch clockwise to access the TTL/auto exposure
setting; the white indicator on the knob aligns with TTL. When taking pictures with the
mode switch in this position, the camera automatically signals the strobe to turn off
when the exposure is correct.
• When the DS51 is connected directly to the camera, the camera must feature
compatible TTL/auto exposure to utilize this mode.
• The TTL/auto firing mode must be selected when connecting the EV Manual Controller
#41 00.6 (page 1 0).
M M A A N N U U A A L L E E X X P P O O S S U U R R E E P P O O S S I I T T I I O O N N ( ( Refer to illustrations on page 1 6)
Figure 3 shows the mode switch in the manual exposure mode with the DS51 Substrobe
turned to the F (full power) position. Rotate the mode switch clockwise to access the
different power settings. Each power setting clockwise from F reduces the light output
of the DS51 Substrobe in one-half f-stop increments. When shooting in the manual
mode, it is suggested that you start the strobe at full power and adjust the camera's
aperture based on the strobe-to-subject distance.
If the subject in the photo is underexposed (dark) you must move closer to the subject.
If the subject is overexposed (light), then you can rotate the mode switch clockwise to
reduce the light output of the strobe until the desired exposure is obtained. The DS51
provides five reductions in power in one-half f-stop increments from the full power
setting. (Fig.4), for example, shows the mode switch set to -1 and 1 /2 f-stops.
D D o o n n o o t t u u s s e e m m a a n n u u a a l l s s t t r r o o b b e e s s e e t t t t i i n n g g s s w w i i t t h h a a c c a a m m e e r r a a t t h h a a t t e e m m i i t t s s " " p p r r e e - - f f l l a a s s h h " " . . L L e e a a v v e e t t h h e e D D S S 5 5 1 1
i i n n t t h h e e T T T T L L p p o o s s i i t t i i o o n n a a n n d d a a d d j j u u s s t t e e x x p p o o s s u u r r e e u u s s i i n n g g y y o o u u r r c c a a m m e e r r a a s s e e t t t t i i n n g g s s o o r r h h o o u u s s i i n n g g
c c o o n n v v e e r r s s i i o o n n c c i i r r c c u u i i t t r r y y ( ( i i f f a a p p p p l l i i c c a a b b l l e e ) ) . .
1 5
M M O O D D E E S S W W I I T T C C H H
Knob
Strobe
Ready
Light
(Fig )
(Fig )
( ( i i l l l l u u s s t t r r a a t t i i o o n n s s ) )
Battery Door
Mode Switch
Waterproof
Bulkhead
Cap
(Fig )
(Fig )
1 6