Released September 2013

This ultra-wide-angle lens features HD Coating and a circular diaphragm for sharp imaging. Mount: K-mount for APS-C format. Focal length: 15mm (equivalent to 23mm in 35mm format). Maximum aperture: f/4. Filter diameter: 49mm. [HDDA154 Limited BK] HDDA154 Limited BK Released September 2013
This lens features our unique, high-performance multi-coating "HD Coating" for enhanced imaging performance. Compared to conventional multi-coatings, it offers lower reflection and higher transmittance, reducing ghosting and flare even in challenging lighting conditions such as backlighting, resulting in clear images.
A circular diaphragm for beautiful bokeh. The new circular diaphragm reduces the appearance of streaks of light when photographing point light sources, enhancing the imaging performance unique to this limited-edition lens and achieving more natural and beautiful bokeh.
Following the design concept of the Limited Lens series, which is particular about depiction and texture, the lens is designed not only based on numerical evaluations using test equipment, but also on repeated evaluations of image quality using actual images, which are then fed back into the design to pursue the "flavor of the lens." It has also been optimized for digital imaging, ensuring sharp, high-contrast, clear images even at wide open apertures. The lens barrel, hood, and cap are made of high-quality machined aluminum, giving the body a high-quality finish. ■ Specifications ■

Mount: PENTAX KAF mount Lens construction: 6 groups, 8 elements Angle of view (when mounted on a PENTAX digital SLR camera): 86° Focal length (35mm equivalent): 23mm Maximum aperture: F4 Minimum aperture: F22 Number of aperture blades: 7 (F4-F5.6: circular aperture) Minimum focusing distance: 0.18m Maximum magnification: 0.15x Filter diameter: 49mm Maximum body diameter: Approx. 63mm Total body length: Approx. 39.5mm Weight: Approx. 189g Accessories: Case □ Manufacturer's warranty period 1 year