Ikelite Digital Camera C 740 User Manual

Digital Housing  
i n s t r u c t i o n m a n u a l  
f o r  
Olympus  
C-740 & C-750  
H o u s i n g  
#6130.74  
 
OOppeenniinngg tthhee HHoouussiinngg  
1. Lid Snaps have a Lock.  
To open, push Lid Snap Lock  
forward and lift as shown.  
Keep pressure on the Lid  
Snap so it does not fly open  
quickly.  
HHoott SShhooee wwiitthh tthhee CC--774400  
Push Forward  
H
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S
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CConneector  
Hot Shoe  
Connector  
storage  
Mount  
Lid Snap Lock  
S
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MMount  
O'Ring  
The C-740 camera does  
not have a hot shoe, it  
is recommended that  
the housings Hot-Shoe  
be secured in the Hot  
Shoe Storage Mount.  
Make sure the cord  
does not interfere with  
the o'ring when closing  
the housing.  
Hot Shoe  
Connector  
Lift  
Some lid snaps have a lot of  
OLYMPUS  
spring tension once they go over center, have a firm grip on the  
lid snap. Lid Snaps may be opened one at a time.  
IInnssttaalllliinngg tthhee CCaammeerraa  
O'Ring  
1. Remove the back from  
the housing. The  
mounting tray for the  
camera is secured to  
OLYMPUS  
HHoott SShhooee wwiitthh tthhee CC--775500  
the housing back.  
Position the camera on  
the tray and secure it  
with the mounting bolt  
which threads into the  
camera’s tripod socket.  
CAUTION:  
When using an external strobe connect the housings Hot Shoe  
Connector, slide the connector into the hot shoe of the camera  
from the back of the camera as shown. Slide the connector  
forward until it stops. This can be done after the camera is  
secured with the mounting bolt.  
External Strobe Connector  
Waterproof Cap (see caution)  
CCaution:  
Hot Shoe  
Connector  
Storage  
Some camera tripod  
D
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H
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SShoe  
Mounting  
Bolt  
Mount  
Mounting  
Tray  
socket threads are  
Co  
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H
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SShoe  
(see caution)  
O'ring  
plastic. The mounting  
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Housing Back  
tray bolt is metal. Do not cross thread or over tighten as you  
may damage the camera tripod socket threads.  
s
t
robe  
Hot Shoe  
Connector  
Do not remove the External  
Strobe Connector’s  
waterproof cap unless an  
external sync cord is going  
to be plugged in.  
2. Pull out on each housing control until it stops. This will get the  
controls out of the way for installing the camera.  
Camera  
4
5
CClloossiinngg tthhee HHoouussiinngg  
CChheecckkiinngg CCoonnttrroollss  
housing back  
1. Place housing face down in your  
lap.  
Once the housing has been closed, push the controls back into  
place. Make sure they line up with the camera’s controls.  
2. Check to see that there is an  
o’ring on the housing back and  
that it is clean and in its proper  
location.  
3. Guide the back onto the housing.  
The o’ring should touch the  
housing all the way around. There  
should be an even gap all the way  
around between the housing and  
the housing back.  
ZZoooomm CCoonnttrrooll  
(NOTE:) After you have used the  
housing’s zoom control it must be  
returned to the center position to  
disengage. If the housing zoom  
control is pushing the zoom lever  
in either direction you cannot  
take a picture or access any other  
function as the camera is  
o’ring  
receiving a signal from the  
engaged zoom control.  
4. Lift the lid snaps so they are  
extended and place the lid snap  
into the hook on the housing  
back.  
Zoom control  
disengaged  
(centered)  
Zoom control  
engaged  
housing back  
TTuurrnn CCaammeerraa OOnn  
5. To close the housing push  
down on the lid snaps until  
they snap into place . Lid  
even gap  
all 4 sides  
Turn the camera on and operate each of the housing controls to  
get a feel for using the camera in the housing. Take a few  
pictures above water with the camera in the housing.  
snaps on opposite sides of the  
housing should be closed at the  
o’ring  
LLuubbrriiccaannttss  
same time. Be sure they are down  
far enough to engage the lock.  
1. Ikelite provides silicone lubricant with the housing. We recommend  
you use only Ikelite lubricant on Ikelite products as some other  
brands may cause the o’ring to swell and not seal properly.  
2. Use only enough lubricant to lightly cover control shafts and  
o’rings. Wipe off any excess lubricant with a clean cloth.  
Lubricant is not a sealant, it is used to reduce friction. Excessive  
lubricant can collect sand and dirt which may interfere with  
proper sealing.  
Doublee check  
- Once the housing is closed, check the o’ring seal.  
Check the gap between the housing back and the housing, it  
should be even all the way around.  
Look through the clear plastic back at the o’ring. You should see a  
darkened area where the o’ring is compressed against the  
housing back. If you do not see an even black compression seal  
all the way around the back, open the lid snaps, reseat the  
housing back and close the lid snaps. Visually check the seal again.  
CAUTION  
NNeevveerr uussee sspprraayy lluubbrriiccaannttss aass tthhee pprrooppeellllaanntt iinnggrreeddiieenntt ccaann  
ccaauussee tthhee ppllaassttiicc hhoouussiinngg ttoo ccrraacckk..  
6
7
 
This edge against  
housing  
DDiiffffuusseerr && DDeefflleeccttoorr IInnssttaallllaattiioonn  
DDiiffffuusseerr aanndd DDeefflleeccttoorr ccoonntt..  
A diffuser and deflector are  
included with the housing. The  
diffuser is white transparent  
plastic. The deflector is also white  
but is not transparent and has a  
decal on the front.  
Diffuser/  
Deflector  
material  
Port Clamp  
Deflector  
To install the diffuser or deflector  
spread the port clamp at the spring  
end and slide over the lens port.  
The white plastic should be placed  
in front of the camera flash. The  
port clamp should be pushed back  
against the front of the housing.  
Spring  
Spread to Install  
DDiiffffuusseerr  
The diffuser should be installed when using the camera’s built in  
flash. When shooting with the camera’s built-in flash at  
approximately 2 feet (0.6 m) or less, the lens port on the  
housing blocks a portion of the light from the camera’s built-in  
flash, creating a shadow in the lower left of the photo. To  
eliminate the shadow zoom the lens between 1/3 and 1/2 of its  
full telephoto range. (You can test this above water)  
Housing shown with  
deflector installed.  
DDeefflleeccttoorr  
The deflector should be installed when using an external strobe  
such as the DS51 or DS125 Substrobe and EV Controller. The  
deflector will redirect the camera’s flash to the EV Controller  
which controls the external strobes output.  
8
9
Substrobe  
DS51  
UUssiinngg EExxtteerrnnaall FFllaasshh  
UUssiinngg FFllaasshh wwiitthh CC--774400  
External strobes offer several advantages over using the  
camera’s built-in flash. External strobes move the flash away  
from the camera lens which helps reduce backscatter. They also  
expand lighting options to achieve the best lighting for  
different subjects and lenses. A strobe such as the DS51 is ideal  
for use with macro and most standard camera lenses up to  
28mm. When an optional wide angle lens is added a strobe such  
as the DS125 is needed as it has a greater angle-of-coverage. A  
second external strobe can be added to fill the shadows and  
produce more realistic photographs.  
The C-740 cameras can use the  
cameras built-in flash to light  
subjects underwater.  
Using Exteernall FFlash  
For external flash the DS51 or DS125  
can be used with the EV- Controller  
in slave mode. In slave mode the  
camera's built-in flash is used to  
trigger the EV-Controller.  
The EV-Controller provides 10  
manual power settings in 1/2 stop  
increments.  
Ball Socket  
Arm  
DDSS5511 SSuubbssttrroobbee  
The Substrobe DS51 covers the equivalent of a 28mm lens. It is  
the ideal choice when using only the camera lens or the camera  
lens with a macro accessory lens.  
DDSS112255 SSuubbssttrroobbee  
The Substrobe DS125 covers the equivalent of an 18mm lens,  
100 degrees (with diffuser). It is the ideal choice when using  
accessory wide angle lenses greater than 28mm.  
EV Controller  
10  
11  
 
UUssiinngg FFllaasshh wwiitthh CC--775500  
OOppttiioonnaall AAcccceessssoorriieess  
The C-750 camera can use the cameras built-in flash to light  
subjects underwater.  
BBaacckk OOrriinngg #0110  
O’rings last for several years if properly maintained. (See  
maintance) Always carry a spare.  
UUssiinngg EExxtteerrnnaall FFllaasshh wwiitthh CC--775500  
UURR//PPrroo FFiilltteerr #6441.41  
TTL Expossure Mode  
The UR/Pro underwater color correcting filter is designed to  
restore some of the warm colors filtered out by the water. For  
available light use only, not recommended for use with flash.  
Ikelite DS Substrobes are fully TTL functional and provide real  
Olympus TTL control with this housing. For TTL exposure you  
must use a DS Substrobe and the Ikelite #4103.51 sync cord or  
#4103.52 dual sync cord for dual strobes. NOTE: Refer to  
camera manual for settings when using an external strobe.  
Manual Expposurree Mode  
This camera can be used in the manual mode with any Ikelite  
Substrobe, DS51, 100A, DS125, or 200. A #4103.51 sync cord is  
required to connect the Substrobe to the housing.  
Manuaal Exppoosure MMode 2  
Use the Ikelite EV-Controller with a DS Substrobe for more  
control over manual exposure. The EV Controller provides 10  
manual power settings in 1/2 stop increments. For housings with  
an external sync cord connection it is recommeded to connect the  
EV-Controller to the housing with a #4103.51 sync cord.  
OOppttiioonnaall SSttrroobbee PPaacckkaaggeess ffoorr CC--775500 (TTTL Expposuree Mode)  
#3944.51 includes  
DS51 Substrobe  
Ikelite TTL Sync Cord  
SA-100R Arm  
#3944.75 includes  
DS125 Substrobe  
1.5 hr. Smart Charger  
Ikelite TTL Sync Cord  
SA-100R Arm  
12  
13  
LLeennss PPoorrtt  
MMaaiinntteennaannccee  
The Ikelite Digital Housing should be given the same care and  
attention as your other photographic equipment. In addition to  
normal maintenance we recommend that the housing be returned  
to Ikelite periodically to be checked and pressure tested.  
The Lens Port is factory sealed, do not remove.  
Treat the glass in the lens port as a camera lens. After use, rinse  
and gently dry the lens port to avoid water spotting. To clean  
use a mild soap solution or lens cleaner.  
Do Not  
1.  
leave the camera and housing in direct sunlight for  
prolonged periods. Heat may damage the camera.  
Do not use alcohol or window cleaner on the Lens Port.  
2. Do Nott ship the camera in the housing.  
3. Before using the housing, always check the tightness of the  
screw in each control knob.  
The Lens Port is threaded so that accessory lenses may be  
screwed onto the port. The threads are very fine, take care not  
to cross thread the lens.  
set  
controol gland  
Check each  
penetrating the housing to make sure  
Wide angle lenses are available from Inon and Sea & Sea. These  
lenses can be screwed onto the lens port above or below water.  
These lenses are designed to have water between the front of  
the port and the accessory lens. Make sure no air bubbles are  
trapped between the port and the accessory lens. There may be  
slight vignetting when these wide angle lenses are installed.  
Any vignetting that occurs  
they are tight. There is a slight chance that either could vibrate  
loose during travel.  
4. Keep the back o’ring clean and lightly lubricated. To lubricate  
remove the o’ring from the back. Put a small amount of lkelite  
lubricant on your fingers. Draw the o’ring through your fingers  
to apply a light coating of lubricant. Only apply enough  
Do Not sstretcch the oo’ring  
lubricant to make the o’ring feel slick.  
.
Wide Angle  
Lens  
can be eliminated by  
This light coating of lubricant will help to keep the o’ring from  
drying out and will help to show a dark sealing line when the  
housing back is properly sealed.  
zooming the camera lens  
slightly. The camera’s built-in  
flash cannot be used with  
wide angle lenses. The front  
of the lenses are so large  
they block the camera’s  
flash. To properly light  
subjects when using a wide  
angle lens an external strobe  
should be used. Due to the  
wide angle coverage of the  
Inon and Sea & Sea lenses,  
the DS125 Substrobe is  
5. Keep the area where the o’ring fits and the sealing surface of  
the housing clean.  
6. Rinse the housing exterior thoroughly in fresh water after each  
salt water use. Dry with a soft cloth. Dry lens port to eliminate  
water spotting.  
After several uses in salt water soak the housing in a mild soap  
solution, rinse and dry before storage. When storing the  
housing, remove the back o’ring, lightly lubricate and place in a  
plastic bag. Place the plastic bag with o’ring inside the housing  
for safe keeping.  
Housing shown with accessory  
wide angle lens.  
recommended or two DS51  
Substrobes.  
CCAAUUTTIIOONN  
NNeevveerr uussee sspprraayy lluubbrriiccaannttss aass tthhee pprrooppeellllaanntt iinnggrreeddiieenntt ccaann  
ccaauussee tthhee ppllaassttiicc hhoouussiinngg ttoo ccrraacckk..  
14  
 
3. Some of the controls have a short shaft and cannot be pulled  
out exposing the shaft for lubrication. In the unlikely event one  
of these controls sticks or becomes difficult to operate you can  
remove the control from the housing and lubricate it, or return  
the housing to Ikelite for maintenance. To remove the control,  
loosen the set screw in the knob (allen wrench required);  
remove the knob. If there is salt or dirt build-up on the exposed  
control shaft, clean the shaft. Open the housing and gently slide  
the control shaft out of the control gland. Clean and lightly  
lubricate the shaft, including the end of the shaft. Slide the  
shaft back into the control gland and gently slide it back and  
forth a few times without fully removing the shaft from the  
gland. Replace the knob, NOTE the flat area on the shaft, the  
set screw in the knob should tighten down against the flat area  
on the control so the knob does not turn on the shaft.  
CCoonnttrrooll MMaaiinntteennaannccee  
Ikelite controls are designed to provide years of reliable service  
with minimal maintenance.  
1. Push button controls require no maintenance other than rinsing  
in fresh water after saltwater use. If a push button control  
becomes difficult to push or if it sticks when depressed, soak the  
housing in luke warm fresh water. After a few minutes operate  
the push button. If this does not correct the problem, return the  
housing to Ikelite for maintenance.  
2. Some of the controls have long shafts. These controls can be  
lubricate shaft  
housing  
pull out to  
expose shaft  
housing  
gland  
control  
shaft  
pulled out, exposing the shaft (see drawing).  
To lubricate the control, gently pull on the knob until the  
stainless steel shaft is exposed. Lightly lubricate the shaft, then  
move the shaft in and out several times. This will lubricate the  
x’ring in the Ikelite control gland. This should be done before  
using the housing after a prolonged storage period, or once a  
week when the housing is in use.  
Loosen set screw  
(allen wrench required)  
Flat  
Tighten set screw down  
against this area when  
replacing the knob.  
Lubricate end of shaft  
before reinserting into  
gland  
16  
17  
GGeenneerraall TTiippss  
PPhhoottoo TTiippss  
1. Due to the power required to operate the camera, flash, and  
LCD screen it is a good idea to start each dive with a fresh set of  
batteries.  
1. The number one rule in underwater photography is eliminate as  
much water between camera and subject as possible. Get as  
close as you can to the subject, then use the zoom. If you are  
using flash, subjects beyond 6 feet (1.8m)will not have much  
color.  
2. Some cameras reset their flash to AUTO when the camera is  
turned on. If you prefer another setting be sure to select it.  
3. As soon as you enter the water, take a moment and check the  
housing to see that it is properly sealed.  
4. Next, check to see if there are any bubbles on the face of the  
lens port. If there are, take your finger and remove them. If  
there are bubbles on the lens port they can produce soft focus  
spots in your photographs.  
5. If you use the housing Zoom control, make sure to move it back  
to the center position. If the housing Zoom control is pushing  
the camera zoom lever to either side the camera will not  
function. (See page 8)  
2. The camera’s built-in flash is very close to the camera lens. The  
flash can light up any suspended particles in the water and they  
can be recorded in your picture. This effect is called backscatter.  
To eliminate as much backscatter as possible, photograph close.  
Photograph in clear water; do not stir up the sand or silty  
bottom. If backscatter becomes a problem in the environment  
you are photographing, an external flash will help eliminate  
much of the backscatter.  
3. Digital cameras have a slight lag time between when you press  
the shutter release button and the camera actually takes the  
picture. Hold the camera steady a second or two after pressing  
the shutter release button.  
4. Do not shoot down on subjects as they will quite often blend  
into the background and be difficult to see in the photograph.  
Shoot subjects straight on or shoot up at a slight angle using  
the blue water as a contrasting background.  
5. Underwater flash is used to restore the warmer colors filtered  
out by the water as well as to illuminate the subject. When  
photographing underwater, set the camera to use flash on  
every shot. If the camera’s flash is set to AUTO and the sun is  
behind your subject, the camera may see enough light that it  
does not fire the flash. With the sun behind the subject the  
subject is shaded (dark) and needs flash for a good exposure.  
NOTE  
6. If you are shooting with the camera’s built-in flash at  
approximately 2 feet (0.6 m) or less, zoom the lens to  
maximum telephoto. The lens port on the housing blocks a  
portion of the light from the camera’s built-in flash when  
shooting close up. If you do not zoom to maximum telephoto, a  
shadow may appear in the lower left corner of close-up  
photographs. (You can test this above water)  
To shoot wide angle photographs closer than 2 feet (0.6m), you  
need to use an external strobe such as the DS51 or DS125. With  
an external strobe you can position it so nothing blocks the  
light path between the strobe and the subject.  
continued on next page  
18  
19  
 
PPhhoottoo TTiippss CCoonntt..  
6. Many photographers transfer their images to the computer  
where they can fine tune the appearance of the image. Image  
manipulation programs make you think you can magically  
correct any image taken and make a good picture. One thing to  
remember, if the image is overexposed much of the color is  
missing. If the color is missing there is nothing to adjust. If  
images are underexposed the color is there, it is just dark and  
you can adjust it to some degree. So if you error in exposure it  
is better to have the image slightly underexposed than over  
exposed.  
IIkkeelliittee LLiimmiitteedd WWaarrrraannttyy  
All Ikelite products are warranted against any manufacturing defects for a  
period of one (1) year from the date of purchase. Defective products should  
be returned prepaid to Ikelite. Ikelite will, at its discretion, repair or replace  
such products, and will return to customer prepaid. All other claims, of any  
nature, including but not limited to bulb failure are not covered. Except as  
mentioned above, no other warranty expressed or implied, applies to this  
Ikelite product.  
RReettuurrnniinngg PPrroodduuccttss ffoorr SSeerrvviiccee  
Ikelite is most interested in preforming any service to assure that all  
products perform as intended. For repair or service, return the product  
to the address below with your name, address, phone number and a  
brief description of the problem. Evidence of purchase date must be  
provided to obtain warranty service.  
Ikelite Underwater Systems • 50 W 33rd Street • Indianapolis, IN 46208 USA  
317-923-4523  
Digital 6130.74-02-0304  
 

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