Panasonic LUMIX Micro Four Thirds Camera Lens, Leica DG Vario-SUMMILUX 25-50mm F1.7 ASPH, Stepless Aperture, Video Performance, H-X2550

Leica Lens Performance for All LUMIX Micro Four Thirds Cameras: Strict LEICA quality standards now in a F1.7 Micro Four Thirds (MFT) camera lens for professional photographers and videographers Exceptional optical performance Across the Full Zoom Range: Bright F1.7 aperture is available across the entire zoom range of 25-50mm Stepless Aperture for Smooth, Even Brightness: A stepless aperture ring and micro-step drive aperture system ensure optimal, consistent light when zooming or panning Minimize Image Shifts During Zooming: The optical design achieves exceptional barycentric stability to minimize image shifts during zooming Rugged Design: Dust/splash*/freeze-resistant design withstands heavy field use under harsh conditions. *Dust and splash resistant does not guarantee that damage will not occur if this lens is subjected to direct contact with dust and water