This videos may be of interest:
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  • Yongnuo YN685 Review - Are they worth the money? ( in English)
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  • Yongnuo YN660 Speedlight Hands On Review
  • Yongnuo YN685 Review - Are they worth the money? ( in English)
  • How To Use The Optical Slave Modes On Your Flash - Understanding Speed...
  • Yongnuo YN685 Review: TTL HSS Walkthrough Flash For $100 Bucks
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