The Panasonic 10-25mm lens offers great image quality and focusing precision for both still and video recording. It features a 20-50mm focal length 35-mm-equivalent with a constant maximum opening of F1.7 – offering very shallow depth of field and expanded low-light recording capabilities – as well as a clickless aperture ring for smooth and silent operation. The closest focusing distance of 28 mm from the sensor plane opens the door to even more creative work. Quiet and smooth operation of the inner focus system is made possible by use of a stepping motor drive while a focus clutch makes switching from AF to manual focusing quick and easy.