Lens Hood included
In addition to a variety of features, such as our unique HD-multi-coating and the prevention of reflections in the lens barrel, a special lens hood is included with this PENTAX lens to minimise ghosting and flare that occurs in backlit and other adverse conditions. As such, the lens hood is an integral part of the optical system and should always be used when using the lens.
The total lens length does not change even if a 43mm filter is attached to the inner side of the hood.
A 49mm filter can also be attached directly to the lens.
Others
SP Coating
SP coating is a PENTAX-original special coating that provides superior performance inrepelling water and oils. It is used on the front surface of the firsthigh-performance lens for effective protection of the lens surface. This coating not only prevents adhesion of dust, water drops, oils, and other substances, but it also makes it easy to wipe off objects that adhere to the lens.
Round-shapeddiaphragm for beautiful out-of-focus rendition
Featuring a completely round-shaped diaphragm to optimise the performance of their distinctive optics. This diaphragm produces a natural, beautiful bokeh (out-of-focus) effect, while minimizing the streaking effect of point lightsources.
Quick-Shift Focus System
After focusing using the autofocus, the focus ring can be turned to allow immediate focus adjustment using the manual focus. This feature enables smooth operability by eliminating the need for an AF/MF switching operation. This is useful during closeup photography, for instance ,when you want to shoot while making fine adjustments to the focus