Full-Frame Workhorse. The 24-70mm focal length covers the wide to portrait/short-tele focal ranges, making it one of the most popular lenses for working photographers. The constant f/2.8 aperture keeps you shooting even when the lights go down while offering great subject-background isolation.

Supersonic Drive Motor Autofocus System. Provides fast, silent autofocus performance with compatible Pentax DSLRs (all of ours are compatible). Additionally, it offers full-time manual override for quick adjustments.

Build and Optics. Calling something pro-caliber means it has to withstand punishment while outputting, and the Pentax D FA 24-70mm is definitely up to the task. This durable, weather-sealed lens uses three aspherical elements, three ED elements, and one anomalous-dispersion aspherical elements to maximize image quality. There’s a zoom lock switch to keep the lens in its proper resting position, and the included petal hood helps to alleviate sun flare.