Chinese manufacturer Yongnuo is known for their cheap (but effective) speedlights and radio triggers. Today they announced a new speedlight, the YN510EX, which is compatible (off camera only) with both Canon and Nikon’s E-TTL and I-TTL flash systems. Also, unlike previous Yongnuo flash models the YN510EX is dual compatible with both systems, so there is no need to buy a Canon or Nikon specific version.