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Amazon.com : Commander Optics Speedlight TTL-613C Camera Flash for Canon DSLR Cameras (Good Upto 180 Ft) + Flash Pouch + Accessory Bundle with 4 AA Batteries & Charger : Electronics
Yongnuo YN24EX TTL Macro Ring LED Flash Head Adapter with Auto Save Se – JG Superstore
Amazon.co.jp: Godox V860IIIC Camera Flash for Canon Wireless Flash GODOX 2.4G Built-in TTL GN60 1/8000s HSS First Curtain and Second Curtain Sync Mode LED Modeling Lamp TTL M Mode Button for Canon
Canon 430EZ Speedlite
Amazon.com : Godox Camera Flash Speedlite TT685II-C for Canon, E-TTL 2.4G Wireless GN60 HSS, Flash Compatible with Canon Camera 6D 7D 50D 60D 500D 550D 600D 650D 1000D 1100D 1DX 580EXII 5D