Wide Angle Lens
Housing shown with accessory wide angle lens.

Using Flash with C-750

The C-750 camera can use the cameras built-in flash to light subjects underwater.

Using External Flash with C-750

TTL Exposure Mode

 

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 Exposure 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.

Manual Exposure Mode 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.

Optional Strobe Packages for C-750 (TTL Exposure 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

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Lens Port

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 use alcohol or window cleaner on the Lens Port. 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.

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

can be eliminated by 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 recommended or two DS51 Substrobes.

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Optional Accessories

Back O’ring #0110

O’rings last for several years if properly maintained. (See maintance) Always carry a spare.

UR/Pro Filter #6441.41

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.

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Maintenance

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.

1. Do Not leave the camera and housing in direct sunlight for prolonged periods. Heat may damage the camera.

2. Do Not ship the camera in the housing.set 3. Before using the housing, always check the tightness of the

screw in each control knob.

Check each control gland penetrating the housing to make sure 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 lubricant to make the o’ring feel slick. Do Not stretch the o’ring. 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.

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.

CAUTION

Never use spray lubricants as the propellant ingredient can cause the plastic housing to crack.

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Ikelite Using Flash with C-750, Using External Flash with C-750, Optional Strobe Packages for C-750 TTL Exposure Mode