The Pentax limited edition lenses show off a polish and refinement you don't see in average lenses. From the first moment you mount the 43mm f/1.9 you can tell it's been manufactured with an eye to detail.
With a 35mm image circle, the 43mm is fully backward-compatible with all Pentax K-mount film bodies. On a subframe sensor body, the lens will give an effective field of view of around 65mm, a very unusual focal length. It's quite light for its construction, and makes a very compact camera package when mounted to a Pentax body. It takes 49mm filters, and is available now for around $470. Read the whole test here