PRO SWIVEL BOUNCE ZOOM XENON FLASH FOR CANON EOS. PRO SWIVEL ZOOM BOUNCE FLASH FOR CANON DSLR. VIVITAR PRO SWIVEL BOUNCE FLASH2. Vivitar SF 7000 wireless optical slave flash provides guide number of 130 degree at ISO 100 at 85mm position plus a zoom range of 28-85mm for a full coverage.
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