The Lumix Vario-Elmarit 14-50mm f/2.8-3.5 ASPH Lens is a versatile zoom lens designed for Four Thirds mount cameras. INCLUDES M4/3 ADAPTER. Lens works well but zoom gets stuck occasionally at 20mm zoom. Takes a few tries to fully extend to 50mm. With a maximum aperture of f/2.8-3.5, this lens offers a smooth and precise focus in both auto and manual modes. The lens has a focal length range of 14-50mm, making it suitable for a wide variety of photography and videography needs. This high-quality lens from Lumix is further enhanced by its compatibility with 72mm filters, ensuring that photographers can easily attach filters for added creativity and functionality.