Ikelite DS51 Instruction Manual

Ikelite DS51 Instruction Manual

Ttl strobe
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DS51 TTL Strobe
Product Number 4044.1

Product Registration

Please register your product at ikelite.com within 15 days of purchase.
Our product registration database is the best way for us to contact you in
the event of a product update.

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Summary of Contents for Ikelite DS51

  • Page 1: Product Registration

    DS51 TTL Strobe Product Number 4044.1 Product Registration Please register your product at ikelite.com within 15 days of purchase. Our product registration database is the best way for us to contact you in the event of a product update.
  • Page 2: About This Product

    About this Product Thank you for your purchase of Ikelite equipment. Please read this instruction manual completely before attempting to operate or dive with this product. Please visit ikelite.com to register your product to receive information on any updates or notices pertaining to your equipment.
  • Page 3: Overview Of Ds51 Features

    CE - Compliant with applicable EU directives • Complies with FCC part 15, subpart B, Section 15.109 for Class “B” Products Overview of DS51 Features • Mode switch features TTL/auto and manual exposure settings. • Battery compartment accommodates four AA batteries: alkaline, NiCad, or NiMH.
  • Page 4: Important Notices

    Use of an incompatible chemical compound can damage the plastic and o-rings, and may result in leaking. 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.
  • Page 5: Table Of Contents

    Contents Product Registration About this Product Included in the Box Specifications Overview of DS51 Features Important Notices Getting to Know Your Strobe Mounting the Strobe Ikelite Arm/Mounting System Attaching a Sync Connector Battery Compartment Opening the Compartment Opening the Compartment...
  • Page 6 Post-Dive Cleaning, Travel and Storage Troubleshooting Photos are over-exposed (too light) Photos are under-exposed (too dark) Strobe will not fire Strobe will not fire when using sync cord Strobe will not fire when using an optical sensor Ready light does not come on Limited Warranty Service and Repairs Contact Us...
  • Page 7: Getting To Know Your Strobe

    Getting to Know Your Strobe ikelite Flashtube Mount Knob Mode Switch Battery Door Bulkhead Connector Waterproof Bulkhead Strobe Ready Light...
  • Page 8: Mounting The Strobe

    Mounting the Strobe Ikelite Arm/Mounting System The DS51 will accept several Ikelite strobe arms and mounts on the underside of the strobe body. A 1-inch Ball Mount Mark II is included which will allow attachment to 1-inch diameter ball arms from Ikelite, TLC, Ultralight, Nauticam, and others.
  • Page 9: Attaching A Sync Connector

    1. Remove the bulkhead cap. 2. Lightly lubricate the connector O-ring. We recommend using only Ikelite silicone lubricant to eliminate the possibility of swelling due to incompatible compounds. 3. Line up the pins and receptacles and insert the Sync Cord Plug into the bulkhead.
  • Page 10: Battery Compartment

    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. Opening the Compartment Be aware of the position of the o-ring around the perimeter of the battery door.
  • Page 11: Battery Compartment - Continued

    Battery Compartment - continued Closing the Compartment Check that the o-ring and sealing surfaces are clean. Make sure the o-ring is back in its original position and free of any debris. Lubricating the o-ring will NOT result in a better “seal” to the strobe and is not necessary.
  • Page 12: Compartment Flooding

    Should the battery compartment flood, flush the compartment with fresh water and dry thoroughly. 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.
  • Page 13: Strobe Ready Light

    Strobe Ready Light 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. If the glow disappears for longer than 15 seconds between flashes, it may be time for new batteries.
  • Page 14: Mode Switch

    Mode Switch The DS51 Strobe mode switch has eight different positions: OFF, TTL/ auto exposure setting, and six manual exposure settings. (Fig.1) (Fig.2) (Fig.3) (Fig.4) OFF position (Fig.1) Shows the mode switch in the OFF position. The white indicator on the knob aligns with OFF. Always turn the strobe to OFF before connecting or disconnecting a sync cord or opening the battery compartment.
  • Page 15: Ttl/Auto Exposure Position

    Manual Exposure Position (Fig. 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. Each power setting clockwise from F reduces the light output of the DS51 Strobe in one-half f-stop increments.
  • Page 16: Strobe Diffuser

    Strobe Diffuser 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. The diffuser reduces the DS51 light intensity by one full f-stop.
  • Page 17: Maintenance

    3. To remove the diffuser, bend one tab out towards the edge while lifting simultaneously. A lanyard or string can be attached to the diffuser by threading it through the two circular openings near its edge. Attach the other end to the strobe arm to prevent accidental loss. Maintenance Post-Dive 1.
  • Page 18: Cleaning, Travel And Storage

    Cleaning, Travel and Storage 1. Always rinse the exterior of the DS51 with fresh water after use, especially after exposure to salt water. While rinsing, turn the mode switch to free salt or debris that might have accumulated in the DS51 recesses during the dive.
  • Page 19: Photos Are Under-Exposed (Too Dark)

    Move strobe(s) closer to your subject and check aiming. Strobe will not fire 1. Turn on strobe. 2. Check the DS51 ready light. Turn the strobe’s mode switch to OFF and then back to TTL. Make sure that the switch has actually clicked into position.
  • Page 20 The DS51 should flash. 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...
  • Page 21: Strobe Will Not Fire When Using Sync Cord

    If you short across the wrong receptacles on a TTL sync cord, you may damage the DS51 electronics. If it does not fire through the bulkhead, then the strobe must be returned for repair.
  • Page 22: Ready Light Does Not Come On

    This Ikelite product is warranted against any manufacturing defects for a period of one (1) year from the original date of purchase. Defective products should be returned to Ikelite postage paid. Ikelite will, at its sole discretion, repair or replace such products, and will return to customer postage paid.
  • Page 23: Service And Repairs

    Service and Repairs Ikelite is most interested in performing any service to ensure that all products perform as intended. Evidence of purchase date must be provided to obtain warranty service. No prior authorization is required. You may return directly to us or through your dealer. Please include a brief description of the problem, any relevant email correspondence, and/or description of the service request.
  • Page 24: Contact Us

    Ikelite Underwater Systems 50 W 33rd St Indianapolis, IN 46208 USA Phone: (317) 923-4523 Email: ikelite@ikelite.com © 2017 Ikelite Underwater Systems 4044.1_DS51_Strobe_7-1017...

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