FUJIFILM XF 16mm f/2.8 R WR Overview Continuing FUJIFILM's series of compact, portable primes, the black XF 16mm f/2.8 R WR is a 24mm-equivalent wide-angle lens, well-suited to landscape, nature, and architectural shooting. Its f/2.8 maximum aperture balances size and speed, and is suitable for working in available lighting conditions while also limiting the overall size and weight of the lens for everyday use. The optical design features two aspherical elements to reduce distortion and spherical aberrations in order to produce greater sharpness and accurate rendering. A Super EBC coating is also used to control flare and ghosting for improved contrast and color fidelity when working in bright and backlit conditions. Complementing the optics is a stepping motor, along with an internal focusing design, which provides quick and especially quiet focusing performance. Additionally, the lens is weather-sealed to suit working in inclement conditions. The HOYA 49mm PRO 1D Protector is the ultimate in clear filters. It will not affect the color balance or performance of your lenses in the slightest. However, constant use will protect your valued lenses from expensive front element damage which could be caused by dirt, knocks or scratches.