Can you use a Canon Speedlite flash with a Sony A7R III? Yes! Here's how!
Mini TTL Speedlite Flash Automatic Flash Compatible with Sony MI Hot Shoe DSLR and Mirrorless Cameras A6000 A6300 A6500 A7 A7II A7RII A7RIII A7III NEX6 A7SII A7R A7S : Electronics
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Neewer TT560 Speedlite Flash Kit compatible with Canon Nikon Sony Pentax DSLR Camera with Standard Hot Shoe,Includes: (1)TT560 Flash + (1)Flash Diffuser + (1)Re…
👍【Compatibility and TTL autoflash】Godox TT350S camera flash compatible for Sony DSLR cameras, such as A7 A7II A7III A7R II A7R III A7R IV A7S A7S II
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Using a Canon Speedlite Flash with a Sony A7R III