Bower SFD328 Digital Automatic Shoe-Mount Slave Flash for Canon, Minolta, Nikon, Olympus, Pentax, Sony and Samsung (Black) High-power off-camera flash that reduces harsh shadows and contrast with fill-in illumination Built-in intelligent slave flash for wireless photography 28mm-85mm zoom coverage Guide Number: 95 feet (ISO 100 @ S Position) Compatible with all DSLR models including Canon, Minolta, Nikon, Olympus, Pentax, Sony and Samsung