Amazon.com : Nikon SB-910 Speedlight Flash for Nikon Digital SLR Cameras : On Camera Shoe Mount Flashes : Electronics
Amazon.com : Neewer TT560 Flash Speedlite for Canon Nikon Panasonic Olympus Pentax and Other DSLR Cameras,Digital Cameras with Standard Hot Shoe : On Camera Shoe Mount Flashes : Electronics
Amazon.com : Nikon 1 SB-N5 Speedlight : On Camera Shoe Mount Flashes : Electronics