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Canon EOS R8 Review by Ken Rockwell
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Amazon sells an AmazonBasics flash for Canon and Nikon DSLRs for just $28: Digital Photography Review
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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
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Amazon.com : Sigma EF-610 DG SUPER Electronic Flash for Canon Digital SLR Cameras : On Camera Shoe Mount Flashes : Electronics