Looking for creamy smooth bokeh and a soft, dreamy, atmospheric quality from a lens? Look somewhere else. The SK 45mm LS is the brutalist in Phase One’s SK family of lenses. At an equivalent focal length of 28mm, the SK 45mm is about as close as you can get to a truly distortion free medium format wide angle lens, and is almost impossibly sharp corner to corner. Looking for some optical softness to cover up some mistakes? You’ll need to fix it in post. Absolutely perfect for architecture due to its surgical sharpness and ultra-low distortion, the SK 45mm LS is larger than its Phase One 45mm AF brother, but in a different league in terms of image quality. This 45 is also part of Phase One’s Blue Ring line of lenses, meaning that its built-in leaf shutter is capable of syncing with strobes at up to 1/1600s.