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16

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. 

Diffuser Installation and Removal

Tab

Push and Lift 

to Remove

Tab

Holes for the 

Lanyard

1.  

The white diffuser features two protruding tabs for use in installation 

and removal. The tabs on the diffuser should be positioned away 
from the strobe.

2.  

Place the diffuser over the front of the strobe. Spread the two tabs 

apart, insert the diffuser into the recessed front, and then rotate the 
diffuser until it locks into position.

Summary of Contents for DS51

Page 1: ...tion 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 DS51TTLStrobe Product Number 4044 1 ...

Page 2: ...trobe Diffuser 0561 2 Bulkhead cap 9104 5 1 Ball Mount 4081 4 Strobes produced after October 1 2016 Silicone lubricant 1cc tube 0184 1 2 year manufacturer warranty Specifications Weight 0 6kg 1 3 lbs with batteries Energy Rating 50 watt sec Coverage Angle 70 80 with diffuser Widest Angle Lens 28mm SLR Guide Number ISO 100 feet 56 surface 28 underwater Guide Number ISO 100 meters 17 surface 9 under...

Page 3: ...art 15 subpart B Section 15 109 for Class B Products OverviewofDS51Features Mode switch features TTL auto and manual exposure settings Battery compartment accommodates four AA batteries alkaline NiCad or NiMH Ready light indicates when strobe has recycled Diffuser provides softer lighting wider coverage angle and reduces strobe output by one f stop ...

Page 4: ...nd 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 The strobe is factory sealed do not disassemble Disassembly will void your Ikelite DS51 limited warranty Do not continuously fire the strobe more than 15 times abov...

Page 5: ...artment 10 Opening the Compartment 10 Opening the Compartment 10 Changing the Batteries 10 Battery Compartment continued 11 Closing the Compartment 11 Compartment Flooding 12 Strobe Ready Light 13 Ready Light with TTL Housing 13 Ready Light with Remote Optical Slave Converter 4403 13 Mode Switch 14 OFF position 14 TTL Auto Exposure Position 15 Manual Exposure Position 15 Strobe Diffuser 16 Using t...

Page 6: ...e over exposed too light 18 Photos are under exposed too dark 19 Strobe will not fire 19 Strobe will not fire when using sync cord 21 Strobe will not fire when using an optical sensor 21 Ready light does not come on 22 Limited Warranty 22 Service and Repairs 23 Contact Us 24 ...

Page 7: ...7 GettingtoKnowYourStrobe ikelite SUBSTROBE DS51 ikelite Knob Battery Door Mode Switch Strobe Ready Light Waterproof Bulkhead Cap Bulkhead Connector Flashtube Mount ...

Page 8: ...e 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 For further information please visit ikelite com 51 ikelite SUBSTROBE DS 4080 05 Compact Ball Arm 4081 4 1 inch Ball Mount Mark II Included ...

Page 9: ...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 The plug should slide easily into the bulkhead If you feel resistance do not force it Remove the plug and check alignment Sync Cord Plug Connector O ring Bulkhead Waterproof Bulkhead Cap 4 Rotate the knurled ...

Page 10: ...er of the battery door Keep the o ring and sealing surfaces clean Lubricant is not necessary for proper sealing of the battery door o ring To extend its life you can lightly lubricate the exposed part of the door s o ring before storing Changing the Batteries Install four AA cell batteries alkaline NiCad or NiMH Refer to the and markings in the battery compartment to help properly install the batt...

Page 11: ...debris getting into the o ring channel and causing a leak If the o ring needs to be removed do not use a screwdriver or other sharp instrument that may damage the o ring channel and result in a leak Replace the battery door Make sure the door fits into the recess around the battery compartment Rotate the knob clockwise several times and firmly hand tighten to assure the proper o ring seal otherwis...

Page 12: ...he flooded battery compartment is the only one available to you at the time and you re desperate to continue shooting please follow these instructions for a temporary fix 1 Air out and thoroughly dry the battery compartment with air from a blow dryer or a SCUBA tank hose 2 Wash out the battery compartment with alcohol Repeat Step 1 3 Replace all batteries after battery compartment flooding Never r...

Page 13: ...trobe ready light does not glow red the batteries may be expended Your camera s ready light lightning bolt in the camera viewfinder may blink while the DS51 is recycling and then glow solid when the DS51 is fully charged Nikon DSLRs and older Canon DSLR models such as the 20D and Rebel XT will always display a solid glow lightning bolt regardless of the strobe cycle Ready Light with Remote Optical...

Page 14: ...sure 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: ...erent power settings Each power setting clockwise from F reduces the light output of the DS51 Strobe in one half f stop increments When shooting in the manual mode it is suggested that you start the strobe at full power and adjust the camera s aperture based on the strobe to subject distance If the subject in the photo is underexposed dark you must move closer to the subject If the subject is over...

Page 16: ... f stop Diffuser Installation and Removal Tab Push and Lift to Remove Tab Holes for the Lanyard 1 The white diffuser features two protruding tabs for use in installation and removal The tabs on the diffuser should be positioned away from the strobe 2 Place the diffuser over the front of the strobe Spread the two tabs apart insert the diffuser into the recessed front and then rotate the diffuser un...

Page 17: ...r from the strobe Most importantly make sure the o ring is in place prior to re attaching the battery door 2 Make sure the battery door is on and tightened down Rinse your strobe in fresh water Do not remove the sync cord prior to rinsing Dry thoroughly 3 NEVER leave your system in a fresh water rinse tank Collisions with other peoples gear can cause scratches or damage to your equipment 4 Stow yo...

Page 18: ...Check the DS51 bulkhead connector threads for debris Gently wipe away with a soft lint free cloth or a cotton swab to clean the threads Afterwards lightly lubricate them 5 Remove the batteries and store the DS51 with the battery door lightly screwed on this will allow any hydrogen air mixture to escape the battery compartment and avoid placing unnecessary pressure on the o ring that could cause it...

Page 19: ...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 3 Check that the batteries are inserted according to the and markings It is possible to buy bad new batteries so check the voltage output with a meter if possible If using NiCad or NiMH batteries make sure the charger is operating properly and t...

Page 20: ...onnect with the paper clip vary based on the type of cord you own Please refer to the diagram below Nikonos Sync Cord Paper Clip Ikelite Sync Cord Ikelite TTL Cord Point the raised half circle at the end of the cord encompassing the receptacles towards you per the above diagram Place one end of the paperclip on the center receptacle and one end on the lower right hand receptacle The DS51 should fl...

Page 21: ...ad Use the two ends of a bent paper clip to connect different pins in the bulkhead contacts as detailed in the diagram below This process known also as shorting creates a temporary circuit that can test fire the strobe Caution When creating a circuit via paper clip or shorting pay close attention to which two receptacles you connect If you short across the wrong receptacles on a TTL sync cord you ...

Page 22: ...ngle Avoid using strobes in extremely turbid conditions LimitedWarranty 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 All other claims of any nat...

Page 23: ... or description of the service request Always include name shipping address email address and phone number inside of the package Send postage paid to Ikelite Underwater Systems Attn Service Department 50 West 33rd Street Indianapolis IN 46208 USA For the separate international customs documentation form that you complete to accompany the shipment please state or designate that the enclosed product...

Page 24: ...g the images you want please contact us and we ll do everything we can to help you capture your unique perspective Ikelite Underwater Systems 50 W 33rd St Indianapolis IN 46208 USA Phone 317 923 4523 Email ikelite ikelite com 4044 1_DS51_Strobe_7 1017 2017 Ikelite Underwater Systems ...

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