Canon Speedlite 580EX Flash (Canon E-TTL II)
High-Output Professional Speedlight 191′ Guide Number, Rapid Recycling & Advanced E-TTL II Auto Exposure Core
The Canon Speedlite 580EX is a top-of-the-line professional shoe-mount flash designed natively for Canon’s EOS system. Engineered as a powerful, feature-rich lighting core, this flash delivers a maximum guide number of 191 feet (at ISO 100 and the 105mm focal length setting), making it a reliable workhorse for wedding photographers, photojournalists, and studio portraitists. It is fully optimized for digital photography, introducing automatic color temperature communication to ensure the host camera captures natural, consistent color balance on every frame.
At the heart of the 580EX is its seamless compatibility with Canon’s E-TTL II evaluative auto exposure technology. When paired with a compatible EOS body and lens, the system factors in distance data to automatically modulate flash power, eliminating exposure errors caused by highly reflective wedding dresses, dark tuxedos, or off-center subjects. To keep pace with fast-moving action, an improved power supply design delivers a 25% boost in recycling speed over older models. Complete with robust wireless master/slave TTL functionality, an integrated AF-assist beam, and an intuitive control layout, this speedlight provides absolute creative control over your lighting environment.
Key Features & Lighting Performance
Canon E-TTL II Integration: Automates flash exposure calculations by utilizing real-time distance and scene evaluation to produce balanced, accurate lighting regardless of subject size or reflectance.
Exceptional 191′ Guide Number: Offers substantial, high-output power (at ISO 100 and 105mm) to effortlessly light up large wedding venues or fill deep shadows in harsh daylight.
Automatic Color Temperature Transmission: Automatically communicates color temperature coordinates to the camera body at the moment of firing, instantly adjusting the camera’s white balance for optimal skin tones.
Up to 25% Faster Recycling: Features an upgraded high-efficiency power circuit that slashes recycle times to ensure you never miss a critical candid moment.
Comprehensive Multi-Point AF Assist: Built-in red AF-assist beam is fully compatible with Canon’s advanced multi-point autofocus arrays, including specialized 45-point Area AF systems.
Built-In Catchlight Panel & Wide Panel: Features an integrated slip-out white catchlight reflector card to add a natural sparkle to your subject’s eyes, paired with a wide-angle diffusion panel.
Versatile Flash Sync Suite: Fully supports High-Speed Sync (FP mode) for shooting at fast shutter speeds, Second-Curtain Sync for natural light trails, and Flash Exposure Bracketing (FEB).
Wireless TTL & Professional Controls
Wireless Commander & Slave Capability: Serves as a wireless master controller or a remote slave unit. When paired with an ST-E2 transmitter or matching Speedlites, you can easily control multi-flash off-camera configurations.
Advanced Ratio Flash Lighting: Supports sophisticated wireless ratio lighting setups of up to 8:1 when controlling multiple remote Speedlite groups.
Customizable Architecture: Built with 14 distinct custom functions, allowing you to fine-tune and lock in specific flash parameters to suit your personal shooting workflow.
Technical Specifications
Flash Classification: Professional Shoe-Mount Speedlight
Camera Compatibility: Canon E-TTL II / E-TTL / TTL Autoflash Systems
Guide Number: 191 feet / 58 meters (at ISO 100 / 105mm zoom position)
Flash Zoom Range Coverage: 24mm to 105mm (14mm when using integrated wide-angle panel)
Flash Exposure Lock (FE Lock): Yes
Power Source Requirements: 4 x AA Batteries (Alkaline, Lithium, or NiMH Rechargeable)
Dimensions (W x H x D): Approx. 3.0 x 5.3 x 4.5 inches / 76.0 x 134.0 x 114.0 mm
Weight: Approx. 13.2 oz / 375 g (Body only without batteries)

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