The olympus 25mm f18 mzuiko digital lens in black is an ultra compact lightweight prime lens with bright f18 aperture to ensure excellent optical performance in all situations the lens optical construction ensures your point of interest is stunningly sharp while the surrounding background is beautifully soft with a natural bokeh blur effect the lens features a built in msc mechanism for quick and quiet autofocus operation and offers a 25mm minimum focusing distance which can be incre