Amazon.com : Anwenk Camera Flash Stand Flash Speedlight Hot Shoe Mount Stand with 1/4" Metal Tripod Thread for Flash Speedlight Speedlite, Compatible with Canon Nikon Sigma Olympus Panasonic Pentax 4 Pack : Electronics
Amazon.com : Canon Speedlite EL-100 : Electronics
Amazon.com : Better Beamer The Flash X-Tender () FX-2 Flash Output Booster for Nikon SB25, SB26, Canon 540-EZ, 550-EZ, Sigma EF-500, Minolta 5600 HS : Electronics
Amazon sells an AmazonBasics flash for Canon and Nikon DSLRs for just $28: Digital Photography Review
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Amazon.com : Sigma EF-630 Electronic Flash for Canon Cameras (F50954) : Electronics
Amazon.com : Sigma EF-630 Electronic Flash for Canon Cameras (F50954) : Electronics
Amazon.com : Sigma EF 500 DG Super Flash for Nikon SLR Cameras : On Camera Shoe Mount Flashes : Electronics
Amazon.com : Sigma EF430 Super Flash f/Minolta AF-I : On Camera Shoe Mount Flashes : Electronics
Sigma EF-630 Electronic Flash for Canon with 57" Tripod, Bag, and AA Batteries - Walmart.com
Amazon.com : Meike MK430 E-TTL Speedlite Shoe Mount Flash for 70D 77D 80D Rebel T7i T6i T6s T6 T5i T5 T4i T3i SL2 and Other EOS DSLR Cameras : Electronics
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Amazon.com : Powerextra Professional DF-400 Speedlite Camera Flash for Canon Nikon Pentax Samsung Fujifilm Olympus Panasonic Sigma Minolta Leica Ricoh DSLR Cameras and Digital Cameras with Single-Contact Hotshoe : On Camera Shoe
Amazon.com : Sigma EF-610 DG SUPER Electronic Flash for Canon Digital SLR Cameras : On Camera Shoe Mount Flashes : Electronics
Amazon.com : Sigma EF-530 DG Super Electronic Flash for Canon DSLR : On Camera Shoe Mount Flashes : Electronics
Amazon.com : Sigma Electronic Flash EF-500 DG ST for Canon SLR Cameras : On Camera Shoe Mount Flashes : Electronics
Amazon.com : Sigma EM-140 DG Macro Ring Flash for Canon SLR Cameras : On Camera Macro And Ringlight Flashes : Electronics
Amazon.com : PHOTOOLEX FK300 Camera Flash Speedlite for Canon Nikon Sony Panasonic Olympus Fujifilm Pentax Sigma Minolta Leica and Other SLR Digital Cameras and Digital Cameras with Single Contact Hot Shoe :
Amazon.com : PLOTURE Flash Light with LCD Display Adapter Rings and Flash Diff-Users Works with Canon Nikon and Other DSLR Cameras : 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
