Pentax 20150 HD 43mm F1.9 Limited Silver Prime Lens

The Pentax HD 43mm f/1.9 Limited is a standard prime lens that occupies a special place in the Pentax lineup as a true-standard focal length — 43mm matches the diagonal of the 35mm film frame, producing a perspective that closely mirrors natural human vision. The bright f/1.9 maximum aperture allows for effective subject isolation and low-light shooting, while the 8-blade rounded diaphragm ensures that out-of-focus highlights render as smooth, circular shapes rather than polygonal artifacts. This combination of aperture and diaphragm design gives the lens a distinctive rendering quality with rich tonal gradation from sharp focus through soft bokeh.

Optical performance is supported by Pentax's high-performance HD coating, which significantly reduces ghosting and flare when shooting into backlight or other challenging lighting situations. The front element is treated with SP (Super Protect) coating, an original Pentax formulation that repels water, oil, smudges, and dust, making field cleaning straightforward. The lens focuses as close as 0.45 meters, providing useful close-up capability for detail shots without switching to a dedicated macro lens. True to the Limited series philosophy, the body is machined from high-grade aluminum with a premium silver finish, and it ships with a dedicated lens cap (O-LW54A), hood (MH-RG49), lens mount cap K, and a protective lens case (P60-120).