Amazon.com : NEEWER NW600 Flash Speedlite Compatible with Canon Nikon Panasonic Olympus Pentax Fujifilm Sony DSLR and Mirrorless Cameras with Standard Hot Shoe, GN40 On Camera Flash with Manual, S1/S2 Slave Mode :
Amazon.com : XPIX High Power Auto-Focus Digital SLR Flash for Nikon D Series, F Series and Z Series Cameras + XPIX Rechargeable AA Batteries & Quick Travel Charger, Tripod, Universal Remote and