Featuring a constant f/1.7 aperture across its 10-25mm zoom range (20-50mm equivalent), this lens uses 17 elements with 3 aspherical and 4 ED lenses to deliver sharp, aberration-free images. Its weather-sealed, 690g build ensures durability, while the inner focus system provides fast, precise autofocus compatible with 240-fps sensor drives. This optic best serves landscape photographers and videographers seeking a bright, professional-grade wide-angle zoom for Micro Four Thirds.
