The M.Zuiko Digital ED 12-40mm F2.8 PRO II lens is a high-performance standard zoom lens designed for Micro Four Thirds cameras. Here's a breakdown of its technical details and key features:
1. **F2.8 Brightness Across the Entire Zoom Range:** This lens maintains a constant aperture of F2.8 throughout its zoom range, equivalent to 24-80mm in 35mm format, making it ideal for various shooting situations.
2. **Weather-Resistant Construction:** The lens features IP53 dustproof and splashproof performance, along with freezeproof capabilities down to -10°C, ensuring reliability even in challenging environmental conditions.
3. **Fluorine Coating:** The front lens element is coated with fluorine, providing water, oil, and dust repellent properties. This coating also reduces friction, allowing for easy cleaning.
4. **Optical Design:** The lens consists of 14 elements in 9 groups, including various specialized elements like aspherical, ED, and HD lenses. This design ensures excellent resolution and sharpness across the entire zoom range.
5. **Clear and Sharp Imaging:** Advanced manufacturing techniques reduce surface scattering on aspherical lenses, resulting in reduced flares and improved clarity. Coatings such as ZERO coating enhance resistance to backlighting.
6. **Versatile Macro Shooting:** The lens offers a maximum image magnification of 0.6x and a closest focusing distance of 20cm across the zoom range. This allows for versatile macro shooting capabilities, including support for Focus Stacking.
7. **High-Speed, Silent Autofocus:** The lens features an MSC (Movie and Still Compatible) mechanism powered by a linear motor, enabling high-speed and silent autofocus performance. It's capable of approximately 50 fps sequential shooting on compatible camera bodies.
8. **Manual Focus Clutch Mechanism:** Pulling the focus ring toward you engages manual focus mode instantly, allowing for quick adjustments. The lens also includes an L-Fn (lens function) button for easy control.
In summary, the M.Zuiko Digital ED 12-40mm F2.8 PRO II lens offers exceptional image quality, weather-resistant performance, and versatile shooting capabilities, making it a favorite among photographers and videographers.
