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JJC - FX Series Flash Multiplier for telephoto or zoom lenses 580EX, 580EX II
The FX Series Flash Multiplier designed by JJC is for use with telephoto lenses of 300mm or longer. It is excellent for photography on wildlife, birding, wedding, evening party, portraits and more. The Flash Multiplier increases the flash output by about 2 to 4 f/stops and allows you to shoot at greater distances and shoot …