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Features:
◆ Support Canon E-TTL II
Automatically determines the appropriate flash output by the actual light amount of the lens of camera, high precision; Combined with ± 3 fine-tune light output and power zoom function of the SP-690 flash lamp ,allowing you to capture your favorite moments easily.
◆ Fast recycling time
Fast recycling time
Wonderful presents in an instant and disappears also at the moment.SP-690 can cope it easily, when use of Ni-Mh rechargeable batteries (Ni-MH), to complete charging for only two seconds (1/1 output level); when use of alkaline batteries, to complete charging for only five seconds.
◆Large capacity electrical storage system
Whether the flashlight leak flash when you capture your favorite photograph? The reason is the lack of rechargeable electrical energy , and SP-690 can help you to resolve this difficulty. Equipped with OLOONG 1400UF 360V high-quality capacitors and import charging and discharging chips, formed into a strong power supply and electricity storage systems.Three photographs can be in continues shooting with 1/4 output level.
◆Sound monitoring system
When capture the wonderful scene absorbedly, the sound monitoring system of SP-690 would prompt you the status, just to know "charging complete" “Flash completed” "low battery warning” “xenon lamp overheating protection" by your ears. You can also turn off this feature in a quiet occasion temporarily.
◆High-definition LCD and LED backlit
HD LCD displays more clear and complete information to you, the operation and flash status would be more directly. LED backlit help you use at night, which is more convenient and smaller power consumption.
◆ Xenon lamp overheating protection system
Xenon lamp overheating often shorten the life of the flashlight, the SP-690 flashlight is with overheat protection system for you, enter the overheat protection mode automatically when the temperature sensing system senses that the xenon lamp reaches a certain high temperature; In addition, the SP-690 enters overheating protection mode when the number of continuous firing beyongd 25 times at 1/1 level. The double protection has an effect on extending the life of the flashlight.
◆high-temperature insulation
The moment operating temperature of the xenon lamp can be up to hundreds of Celsius degrees, if there is no protective measures, it likes to cause the lamp optical lenses to turn yellow or accelerate ageing, seriously affecting the flash effect. The SP-690 flashlight, connect the high-temperature insulation glass in front of the xenon lamp, so that the high temperature is isolated, and ensuring that its light transmission is not affected, to ensure the flash effect perfect.
◆Metal mounting foot
SP-690 flashlight use pure copper metal mounting foot design, effective solute the wear and tear of the mounting foot caused by the demolished, and it is more solid.
◆ Auxiliary focus system
When light is not enough, SP-690 flash lamp’s dual af-assist beam emitter will work immediately.
◆ Light lead flashing system
Support application of multi-lamp light (S1/S2 lead flash mode).
◆Advanced application
SP-690 supports Canon SLR camera menu operation , you can set Exposure compensation、Exposure bracketing、Front/Rear-curtain sync of external flash,and it supports Red-eye reduction flash mode、FV LOCK、Power saving mode.
SP-690C
Compatible with Canon SLR camera:450D,500D,550D,600D,50D,60D,5D2,7D,1100D.
SP-690N
Compatible with Nikon SLR camera:D3000,D5000,D3100,D5100,D7000,D50,D60,D70,D70S,D80,D90,D200,D300,D300S,D700,D3S
Flash Diffuser (Optional):
  
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