The Olympus 14-42mm f/3.5-5.6 lens is a great lens for the X5S camera. It is a mid-range zoom lens for Micro Four Thirds cameras with a 35mm format equivalent focal length of 28-84mm. This is an ideal zoom range for everyday use, providing a moderate wide-angle to short telephoto perspective. With an aperture range of f/3.5-22 this is an extremely versatile lens.
For enhanced image quality, this lens utilizes three aspherical elements that help reduce optical aberrations and distortion. Also, there is an extra-low dispersion element to minimize chromatic aberrations as well as a super high refractive index element that ensures uniform light transmission and therefore increases sharpness.