Internal lens motor for smooth autofocus operation
A DC motor for the autofocus (AF) incorporated within the lens enables smooth autofocus operation. A non-rotating mechanism is also used for locking the focus ring during autofocus so that the lens is held in the same position as manual focus.
*The compatible models are: K-1/K-1 Mark II/K-3 Mark III/ K-3II/K-3/KP/KF/K-S2/K-S1/K-70/K-50/K-30/K-5 II/K-5IIs/K-5/K-01/K-7/K-r/K-x/K-m/K20D/K200D/K10D/K100D Super.
(Depending on the modell, the actual firmware is required)
When mounted on other camera bodies, the focus mode is automatically switched to manual.
Lens Hood included
In addition to a variety of features, such as our unique multi-coating and the prevention of reflections in the lens barrel, a large 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. Most PENTAX lenses are designed so that the lens tip does not rotate when zooming and focusing to facilitate the use of circular polarising filters. This isfurther supported by a small window in the lower part of the aperture to allowthe circular polarising filter to be operated.
Others
Rounded diaphragm
To produce a smooth, beautiful bokeh (defocus) effect, while minimizing the streaking effect of point light sources
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
