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- Advance aperture & lens optical design: with 11 elements set in 10 groups design, include two ED lenses and two high refraction index lenses, which helps reduce optical aberration to minimum and provide best quality of picture and sharpness; focal length equivalent to 23mm, the lens suitable for wide range of photography (portraits and landscapes). The 9-blades circular aperture mechanism ensures smooth bokeh has good depth-of-field when take product shots at a medium aperture.
- Lightweight design: Solid metal body with excellent build quality, new optical design helps reduce weight into 260 grams, easy to handle and fits in any pocket and camera bag, with standard lens hood, perfect for long time outdoor portraits、snapshots、landscapes and movies.
- HD Nano Coating: VILTROX HD Nano coating are optimized to minimize the ghosting and flare, increase photo clarity and contrast, also prevent lens from dust and moisture; helps photographers get what they want in the widest range of shooting environment.
- STM：Faster and quieter stepping motor, provide more precise autofocus than old models; allows the lens focus smoothly and quietly when shooting photos and movies.
- Up to date：By continuous upgrade lens firmware through USB port, fix product bugs and improve lens performance, and constantly adapt to newest Sony E-mount cameras