Sigma EF-500 DG ST MA-ADI Flash for Minolta

The Sigma EF-500 DG ST flash is a powerful, dedicated shoe-mount speedlight engineered for Minolta MA and Sony ADI-compatible cameras. With a guide number of 50 at ISO 100, this flash delivers ample power for portraits, events, weddings, and on-location shoots. Full ADI (Advanced Distance Integration) metering compatibility ensures precise, consistent flash exposures by communicating directly with your camera's metering system — eliminating guesswork and delivering professional results straight out of camera.

Key Features

• Guide Number 50 (ISO 100, 105mm) — powerful output for indoor and outdoor flash photography
• Full ADI metering compatibility with Minolta MA and Sony Alpha mount cameras
• DG designation — optimised for digital sensors with accurate colour temperature output
• Bounce and swivel head for versatile off-camera and bounce flash techniques
• Zoom flash head automatically adjusts to match lens focal length
• AF assist beam for reliable autofocus in low-light conditions
• Compact and lightweight design for everyday carry

Technical Specifications

• Model: Sigma EF-500 DG ST
• Guide Number: 50 (ISO 100 / 105mm)
• Compatible Mount: Minolta MA / Sony ADI
• Flash Coverage: 24–105mm (auto zoom)
• Bounce: 0–90° vertical
• Swivel: 0–270° horizontal
• Power Source: 4 x AA batteries
• Recycle Time: Approx. 0.1–6 seconds

What's in the Box

• Sigma EF-500 DG ST Flash unit
• Flash stand
• Protective pouch
• User manual