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DS51 4044 1 Thank you for your purchase of Ikelite equipment. Please read this instruction manual completely before attempting to operate or dive with this product. Please refer to the back page of this manual to register your Ikelite product.
TABLE OF C ON TE N T S IKELITE DS51 DIG. STROBE ..3, 4 RECOMMENDATIONS....17 DS51 Specifications ......3 Visual Inspections ......17 Introduction ........4 Insurance ........17 DS51 Strobe Use ......4 Tips ..........17 Overview of DS51 Features ....4 Lubricant ..........17 Starting Out ........4 MAINTENANCE ......18...
Light Caution: The DS51 bulkhead connector is not waterproof and must be capped when not connected to a cord or sensor. Using a DS51 underwater with the bulkhead connector uncapped or unconnected will cause the strobe to flood. Do not continue to use a flooded strobe: return to Ikelite for repair.
The Ikelite DS51 strobe is equally suited for general and wide-angle photography, covering up to 80° with a diffuser. The compact size of the DS51 makes it ideal for macro photography while its 5700°K color temperature helps bring out the true colors of the underwater world.
MOUNTING T H E S T R OB E IKELITE ARM/MOUNTING SYSTEMS Ikelite offers several arm choices compatible with the DS51. Arms and mounts are NOT supplied with the strobe unless purchased as part of a complete package. The DS51 will accept several Ikelite strobe...
STR OBE CON N EC TI ON The female Ikelite bulkhead connector permits Ikelite sync cords to be connected to the strobe. The sync cord relays a signal from the camera to the strobe that tells the DS51 when to flash.
Ikelite Sync Cord TTL SYNC CORDS Ikelite offers interchangeable sync cords so that the DS51 strobe can be connected to different camera systems. A TTL sync cord (illustrated above) is required to send the TTL/auto exposure signal from the camera to the strobe.
Non-Ikelite housings for digital cameras and compatible TTL adapter Connect the strobe using an appropriate Ikelite TTL sync cord. Digital cameras require the use of a Digital TTL sync cord. These cords are designated by a blue band at one end.
TTL conversion circuitry Non-Ikelite housings for digital cameras with Nikonos-style strobe connector Connect the strobe using an appropriate Ikelite sync cord. The DS51 must be used in manual exposure modes. Strobe output is not automatically adjusted for proper exposure when set to TTL/auto mode.
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Diagram A ikelite S U B S T R O B E DS-51 Strobe Bulkhead O-ring, O-ring Sealing Groove Plug Lock Retainer 4403 Optical Slave Converter Threaded Fiber Optic Port Attachment 0314.4 Plug Attachment Point for Ikelite, SEA&SEA-type and Olympus cables...
Do not remove the knob from the battery door. The battery compartment is sealed separately from the main electronics. Do not disassemble the strobe. Disassembly will void your Ikelite limited warranty. BATTERY COMPARTMENT O-RING Be aware of the position of the o-ring around the perimeter of the battery door. Keep the o-ring and sealing surfaces clean.
Determine the cause of the flooding to the best of your ability. Send the DS51 and other system components involved to Ikelite for inspection and testing as soon as possible.
S T R O B E DIF FU S E R USING THE DIFFUSER The white diffuser can be secured to the front of the DS51 strobe when softer lighting or a coverage angle of up to 80° is desired.
STROBE RE AD Y LI GH T The Ikelite DS51 Strobe features a ready light at the rear of the strobe that glows red when the DS51 has recycled and is ready to fire its flash again. This recycling time should not exceed 15 seconds.
Controller #4100.6 (page 10). MANUAL EXPOSURE POSITION (Refer to illustrations on page 16) Figure 3 shows the mode switch in the manual exposure mode with the DS51 Strobe turned to the F (full power) position. Rotate the mode switch clockwise to access the different power settings.
INSURANCE It is recommended that you add an all-risk floater to your homeowner’s and/or renter’s insurance policy to cover your equipment against loss or damage. While the Ikelite DS51 Strobe has a limited warranty against manufacturing defects, it does not cover customer neglect.
MAI NTENAN C E Your Ikelite DS51 Strobe should be given the same care and attention as your other photographic equipment. After using your strobe in water, please follow these instructions to insure the DS51 longevity and good working order.
If the DS51 flashes, the source of the problem lies somewhere in the camera. If the DS51 does not flash, please send both the strobe and cord used in the test to an authorized Ikelite dealer or to Ikelite (see “Returning Products for Service”...
R E T U R N I N G P R O D U C T S F O R S E R V I C E Ikelite is most interested in performing any service to ensure that all products perform as intended.