The K-mount lens and aperture range of f/1.4 to f/16 are some of the key highlights of the HD FA-50mm f/1.4 SDMM AW from Pentax. Its other features include an Aspherical element, an unusual spherical dispersion element, an ultrasonic motor SDM, a front coating, and weather-sealed. The Pentax K lens features a full frame optical image and a built-in autofocus feature. It also has a 72mm filter and a minimum aperture of f/16, and it has a maximum aperture of F/1.4.

Part of the Star Series of lenses by Pentax

Rounded 9-Blade Diaphragm

Weather Sealed

K Mount Compability 

Full-Frame Format

The HD FA 50mm F/1.4 SDM AW is a part of the Star Series of lenses by Pentax. It features a bright maximum aperture and is ideal for low-light shooting. It also has a wide range of field control. The HD Coating II and Aero Bright Coating on the 15 elements of the lens help minimize ghosting and flare even when shooting in low-light conditions. Its SP Coating can repel fingerprints and water from the lens' surface. The Sonic Motor SDM from Pentax provides fast and accurate focus, and the lens is weather-sealed to ensure consistent performance even in adverse weather conditions. 

The Pentax HD FA-50mm F/1.4 SDMM AW lens has a minimum focus distance that's 1.36 inches.

It has a magnification of 0.18x and features 15 elements in nine groups.

Key features of the HD FA 50mm f/1.4 lens from Pentax include a 9-blade diaphragm and a round shape for smooth and creamy bokeh.

Limited 1-Year Manufacturer Warranty