NEEWER Speedlite 750II User manual

1.Warning
I
1. Do
not
use
the
unit
in
the
presence
of
flammable
or
explosive
gas.
2.
When
the
speed
lite is
dropped
or
damaged.do
not
touch
any
exposured
inner
metal
parts
3.
Stop
the
speed
lite
and
take
out
the
battery
if
there's
heat,
smoke
or
smell
of
burning
to
av-
id
catching
fire.
4.
If
the
corrosive
liquid
leaked
from
the
battery
and
get
in
your
eyes.please
clean
your
eyes
with
clear
water
and
consult
your
doctor.
5.
The
speed
lite
should
not
be
dabbled
in water, rain,
sweat
or
moisture,
to
avoid
catching
fire
or
causing
electric
shock.
•
6. Do
not
use
the
speedlite
to
photo
the
people
who
need
concentrate
on
his
work,
or
may
cause
accident.
7. Do
not
use
the
speedlite
to
photo
people's
eyes
nearly,
or
may
damage
their
retinal
of
their
eyes.Do
not
use
the
speed
lite
to an
infant
within
1 meter.
8.
It's
forbidden
to
use
activity
reaent
such
as
diluent
or
benzene
to
clean
the
components.
Never
store
the
components
in
somewhere
there
are
camphor
and
benzene.or
the
plastic
package
would
be
damaged
and
catch
fire
or
electric
shock.
9. Do
not
leave
the
small
accessories
to
somewhere
the
children
can
reach.so
as
to
avoid
the
children
swallow
them.
If
it
happened.please
consult
the
doctor
at
once.
10. Do
not
attempt
to
disassemble
or
repair
the
components
of
the
flash.to
avoid
catching
fire
or
causing
electric
shock.
11.
Please
use
the
standard
size(AA)
or
other
ordinary
rechargeable
batteries.Make
sure
to
place
the
positive
and
negative
of
the
batteries
correctly.
12.
To
prevent
overheating
the
flash
head
and
shorten
the
operating
life,do
not
flash
contin-
uously
for
more
than
twenty
times
at
the
(1
/1)
largest
setting.
-29-

I
2.
Features
0
High
GN: 58
0
Wireless
trigger
sensor
0
Electrical
socket
outlet
0
PC
synchronous
interface
0
Recycle
time
4
second
(with 4
pcs
AA
alkaline
cell)
0
Compatible
with
E-TTL flash
automatically
0
Support
Multi-flash
lighting
Appliction
(s1
/s2
mode)
0
Power
saving
mode
0
Accurate
brightness
control
0
LCD
display
0
Metal
hot
shoe
0
Support
front
curtain
synchronous
0
Support
rear-curtain
synchronous
0
Temperature
detection
Automatically
(overheating
protection)
0
Memory
function
-30-

3. Components I
1.
Reflector
panel @
CD
2.
Wide-angle
diffuser
3. Flash head
4. PC
terminal(for
input)
®
5.
Wireless
trigger
sensor
6.
Battery
cover
7.
Externel
power
socket
(connect
SD-SA) ®
8.
Hot
Shoe
9. Locking ring © ®
10.
Hot
shoe pin ®
(j)
11. AF
Assist
Lamp ®
12. Locking pin @ ®
@
-31-

I
Components
13. LCD
display
14.
Mode
switch
button
15.
Charging
indicator
16. Test
button(
PILOT)
13,
J---;r-----m~L__
__
17.
Adjustment
button
~
---1}
~~~==-~~~~'.__j~
-
<up
,
down
,
left
,
right
button>
@
----tt-
-,..
18.
Zoom
button
@
------!\-----';~
~~~__.:::;
!!l!!""'----'~-r
19.
Power
ON
/OFF
20.
SET
Key
Setting
button
@
--~
-32-

4.
Installation
I
1.
Insert
batteries
a.
Slide
the
battery
compartment
cover
in the
direction
of
the
arrow
to
open
it.
b.
Insert
the
batteries
follow
the
direction
inside
the
battery
compartment
cover,
Make
sure
to
place
the
positive
and
negative
of
the
batteries
correctly.
c.Slide
the
battery
compartment
cover
in
the
direction
of
the
arrow
to
close
it.
Note:Please
use 4
pcs
standard
AA
batteries.Please
don't
use
damage
batteries.so
as to
av-
oid
shortcut.
-33-

2.
Install
the
speed
lite
on
the
camera.
I
Installation
a.
Rotate
the
locking
ring in
the
direction
of
the
arrow
to
the
hightest
point.
b.
Mount
the
speed
light
into
the
camera's
hot
shoe
completely.
c. Turn
the
locking
ring in
the
direction
of
the
arrow
tighten,
Loosen
the
locking
ring to
the
top,
then
remove
the
flashlight
from
camera's
hot
shoe,
If
you
detach
the
speed
light.
I'~"
I
l~
-34-

5.
Basic
functions I
Meaning
of
<Charging
indicator>:
Status
of
charging
Meaning
Operation
indicator
The
red
light
is
Charging
Normal
blinking
The
red night is lit
The
batteries
Normal
are
full
The
speed
lite
is
locked
The red light goes
because
of
the
frequent
Stop
about
2
minutes,
flash.overheating
waiting
for
flash
cooling
off
protection.
-35-

I
Basic
functions
1.
Basic
Operations
Operation
of
the
buttons:
Components
<Power
Switch>
<ZOOM>
button
<Mode
Switch
Button>
<Pilot
Button>
<UP>and
<DOWN>
button
<LEFT>and
<RIGHT>
button
Operation
Push
up and down to
turn
on/off
the
speed
lite.
Press
the
buttons
and
the
up and
down
keys
to
adjust
the
focal
range
of
the
speed
lite.Press
once,
the
focal
range
will be
among
18/20/24/
28/35/50/70/85/105/135/150/180MM
Press
once,
the
mode
will
change
among
the
TTL/M/IH/S1/S2.
Press
the
buttons
to
test
the
input
brightness
of
the
speed
lite.
Press
the
buttons
to coarse
adjust
the
output
power
of
the
speedlite.
Press
the
buttons
to
choice
the
adjustment
items
or
conduct
djustment.(fine tune flash output index)
-36-

Basic functions
2. Turn
on/
off
the
speed
lite
2.1 Turn on
the
speed
lite
Push the
switch
down to
"ON",LCD
screen
can
display.
If the charging indicator
is
blinking red,it means it
is
in the
process ofcharging.when the speedlite keepslong-time
lighting,it can be used.
2.2
Speedlite
test
•
Press
(PILOT),
then the
speedlite
is
flashing.
-37-

I
Basic functions
Turn
on/
off
the
speed
lite
2.3
Turn
off
the
~peed
lite
"OFF"
in
order
to
turn
off
the
speed
lite.
Push
the
switch
up
to
-38-

Basic
functions
3.
Memory
function
The
speedlite will
recover
the
last
mode
and
setting
when
it's
turned
on
again.
4. TTL mode
The speedlite will flash
automatically
via
the
lense
of
the
camera.
rr1c--------------
--
---
-
-:
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The
speed
lite is
showed
as
the
left
when
it is on.
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1
0
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[II
Decrease
the
exposure
compensation (TTL i
Press
the"T
"button
to
decrease
the
EC,
fine
adjustment
!-
I/
3
g=:
~
§,!§
!
from
0,-1/3,-2/3,
-1
······
-3,+3,-2 2/3......0
nin~teengrades,
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6 •
12
1111
m :
press
"T"
to coarse tune Exposure compensationfrom,-1/3...... :
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-39-
I

I
Basic
functions
TTL
mode
3
Increase
the
exposure
index
Press
the"l!I-
"button
to
decrease
the
exposure
index,
fine
adjustfingfrom
0,1/3,2/3,1......3,-2/3......
0.
nine
grades
4
How
to
use TTL(press ".A· to fine tune the flash EC)
:11L.--·--·-·-·-·---·------·------:
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•
Half
press
the
shutter
button
for
focusing
,-----·-·---·-----
-·-----------,
•
The
speedlite
connects
the
camera
and
show
the
index
ITTL :
of
the
aperture
of
the
camera
and the
focal
length
of
the
i f
~
S,5
i
lense. I
~1152TT'i
1
12
• • m :
•
Press
the
shutter
to photo,
the
speedlite
will
flash
(TTL)
:
00
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-40-

Basic functions I
s.
M mode
~dper
the M(
Md
anubaltstettitng)hmode,yt
ouMcan
dset
the output
index:_s_y~_u_~~~~----------------
1..!.J
ress<mo
e> u on o c
ange
o mo e I M :
The
picture
is the M
mode
interface
of
the speedlite. I
81
~~S
I
~
Increase
the
brightness
of
the
speed
lite. i ii.51i.5i'3T & •
12
11
• m i
Press the
HA
"orH
~"button
to
set
the
brightness
:
If.ii@
800
~@llili
SOIMffll
of
the speedlite.
"A
"means coarse
tuning"
T "means fine
~~=~-~-----~~----~-~~-~~-~~~~~~~~~-~--~-~-------:
tuning. The maximum
brightness
value
of
the
speed
lite is1/1: M I
(The-re're3
grades
of
power
fine
adjustment
on
everygear)
I
8/~~S
+
0.3
Ev
I
i
------
i
!,:
00
o.s
1
~~2fiJ3
4 1 a
1l
16
~
m !
I])
Decrese
the
brightness
of
the
speed
lite.
------~~~--~-~Q,,JJ-~:
Press the
"TH
or"
....
"button
button
to
set
the
brightness
--------------------------
of
the speedlite.
"A
"means coarse
tuning"
T Hmeans fine , M 1
tuning. The minimum
brightness
value
of
the
speed
lite
is1
/1
i
8/
~
-
0.3
EV,
(The-re're3
grades
of
power
fine
adjustment
on
everygear)f
ii.Si';.;'i'3T'i'i"U'
11
,.
..,
!
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-41-

6.
Stroboflash(
SSS)
mode
I
Basic
functions
Stroboflash
is a kind
of
model
that
can
analyse
the motion
of
subject.
Under
the
stroboflash
mode.the
flash can photo a
series
of
moving subjects
for
many
photos.
You can
set
the flash rate.( the flash
times
one
second,
use
Hz
to
represent
it),flash times
and flash input.
CIJ
Press
<mode>
to
change
to
the
stroboflash
mode.
The
picture
is
the
interface
of
the
strobeflash.
0
Increase
the
input
brightness
of
the
flash
Press
the".&."
button
or"~"
button to finetune
the
input
brightness
of
the
flash.The
maximum
brightest
setting
of
the
flash
is 1/4
(There're
3
grades
power
fine
adjust-
ment
of
every
gear)
-42-
m :
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8=
811.i
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SSS
:
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)

Basic
functions
, -
-iii-
---
-,
I
Stroboflash(
SSS)
mode
[])
Decrease
the
input
brightness
of
the
flash
1/8
S~
B11.i
@)
([i
Press
the"T"
button
or
"T"
Button to fine
adjust
the
input
brightness
of
the
flash.
The
minimum
brightness
setting
of
the
flash
is 1/128.
The
strobeflash
setting
!
------
I
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o.s
,
~·~J.lf!J]
4
••
12
•
~
rn
I
100
Ol!dll!dl
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_______
-----·---
-·-·-·-----·-·-·-·---·-----·--_/
Press<SET>button,the
"8-"
is
twinkle.then
you can
set
:-------m----------------
the
strobeflash
time
ofspeedlite.
The
times
of
the
strobe-
:
aDB'.'lllfll
Ci
lfll
flash
is
from
1 to
90.
When
the
number
of
the
times
is set, :
au
a:;;
tll
IT!~
a:::D
I!•
you can
adjust
flash
ferquency
press<SET>
button
again.
i
0.STii'i"'i'~'i''i''il''ii'li
"'
The
setting
of
the
stroboflash
Press
the
SET
button.again
there's"
8","twinkle.Then
you can
use""""
"T"
button
adjust
the
frequency
from
1
to
100.
•
The
flash
parameter
will be
saved
and
quit
after
press
set
button
again.
•
The
flash
will be
saved
and
quit
if
parameter
was
chosen
twinkle
in 1O
seconds.
-43-
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~
1
Hz
2Hz
3Hz
4Hz 5Hz 6Hz ?Hz 8Hz
9Hz
10Hz20Hz30Hz40Hz50Hz60Hz70Hz80Hz90Hz 1
SzO
IBasic functions
l!l
Reference
output
frequency
and
times
M1/8 14 14 12 10 8 6 6 5 5 4 4 4 4 4 4 4 4 4 4
M1/16 30 30 30 20 20 20 20 10 10 8 8 8 8 8 8 8 8 8 8
M1/32 60 60 60 50 40 32 28 24 22 20 12
12
12 12 12 12 12 12 12
M
1164
90 90 90 80 70 56 44
36
32 28 24 24 24 24 24 24 24 24 24
M1/128 90 90 90 80 70 56
44
36
32 28 24 24 24 24 24 24 24 24 24
-44-

Basic
functions
7.
S1 /
S2
mode
S1/S2
mode is used as
off-camera
auxiliary
to
creat
various
lighting
effects. The S1
mode
is
suitable
for
manual flash
environment
, the
S2
mode is
suitable
for
TTL
flash
environment.
Under
these
two
modes
, the
adjustment
of
the
output
brig
htness
of
the
speedlite
is as
the
M
mode.
51
When
the
flash
is in S1
mode.it
will
flash
with the
first
work
of
the
master
flash
sync,
the
same
effect
as
the
use
of
radio
slave
.
To
use
this
mode
correctly,
the
master
flash
should be
set
as
manual
flash.And
the
TTL flash
systm
with
preflight
function
and the
red-reduction
function
with
multiple
flashes
should
not
be
used
.
S1
flash
once
can
press"
A
··
..-·
to
adjust
the
brightness
of
the
flash.
-45-
l~-
-
-
-
-
-
-
-
-
-
·
51
-
·
-
·
-
·
-·
-
-
·
-
·
-
·
-
·
-
·
-
·
-·1
:
u~~s
-
~.3
fV
i
!
~1i.i2J~~~Uti11
m!
i O
lflllfll
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fRJ
I
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-- -~
~
-
~
-
--~--~-
~
~-:
I

Basic
functions
S1/S2
mode
~
S2
mode
is
namely"pre-flash
cancel
mode".
lt
is si
milar
to
S1
mode.But
it can ignored the pre-flash
given
byTTL
flash
.
Therefore
.it can
support
the main flash working in
TTL mode.
In
particular.if
S1
mode
can not flash
correctly
and
synchronically
with your
internal
flash.you can try the
S2 mode.(The
function
is
suitable
for
the
cameras
of
CANON and
NIKON)
S2
preflash
can through the".&"
"T
"to
adjust
exposure
brightness
r·----
-·--·--
---
-
---
--·-·-2 ·-·----·--
---
-
--
-1
I
~!8~~
-
Cl~fV
i
!
45~~~j~~T~ts1i
m i
• a
!ft!ft
IE
!ft
!
l~·---~~-~-~~--~-~~-:
A
Whenever
which
mode
your
flash.press
the"~"
T 'button
for
more
than 2
seconds,
then
you
can
reset
the
parameter
of
the
flash
by
fast-forward
or
fast-backward
.
-46-

Basic
functions
8.
Sleep
mode
The
flash
will
entry
sleep
mode
if
have
any
operation
in
30
seconds.
it can be
wake
up
through
any
button.
9. ISO
Display
Camera
ISO
synchro
to
flash
when
shutter
release
half-
press,
flash
screen
will
hint
"ISO-A"
when
camera
set
"auto
ISO
sensitivity
control"
on.
10. High
speed
sync
The
flash
LCD
will
hint
"H"
word
when
set
camera
to
"auto
FP" on
(Pay
attentiion:
software
support
shutter
release
1/320
sync).
-47-
!-
--11
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----·-·---·-·-·-·-·---·---------·-·-·-·-·-·-·-·-·------
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I
Basic
functions
11.
Rear-curtain
synchronous
display
Flash LCD will
hint"~"
when
camera
set
to
rear-curtain
synchronous.
12. Manul
setting
the
flash
head
zoom
position
iTTL
i
f~
S.6
i
i
ctti-05~15~3
• s a
11
1S
11
m i
:
oo~~
;g:@@U11il
5[]111Jilll1Jil:
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-·-·-·----
-·-·-·-·-·-·-·-·-·-·-
-·-·-·-·-·-·-·-·-)
You can
adjust
the
zoom
position
of
the flash
head
whenever
which
mode
the speedlite is.
The
default
focal
length
of
the
speed
lite is
SO
MM.Press
the
ZOOM
button, the "50" is
twi-
nkle,
then
you can
adjust
when
press
the"..&."
·..-·button,
It
will be saved
when
you
press
zoom
button
again.
-48-
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