Metabones Mount Speed Booster | Ef M43

Metabones Mount Speed Booster Ef M43 Carry Case Great Working Condition Great Condition

🎯 What it actually does

Unlike a normal adapter, this is an optical reducer (“speed booster”), meaning it:

🔽 Reduces crop factor (~0.71x)
🌞 Increases light by about +1 stop
📷 Makes your EF lenses:
wider
brighter
closer to “full-frame look” on MFT

👉 Example:
A 50mm f/1.8 becomes roughly a 35mm f/1.2 equivalent look (with some optical tradeoffs).

⚙️ Key features (real-world use)

Based on Metabones EF-MFT Ultra / Smart Adapter systems:

🎛️ Electronic aperture control (from camera body)
🔍 Autofocus support (lens + body dependent)
🎥 Image stabilisation support (Canon IS / IBIS cameras)
📊 EXIF data transfer (focal length, aperture, etc.)
🔧 Firmware updates for lens compatibility improvements