Overview

The HD Pentax FA645 35mm F3.5 is a well-regarded wide-angle lens for Pentax 645 systems, praised for its exceptionally low distortion and high sharpness at smaller apertures (f/5.6-11), though sharpness falls off in the outer image circle. It handles flare gracefully but requires a hood for direct light. Build quality is excellent, with a smooth, damped focus ring and solid construction. It suits landscape photographers who value manual focus and filter use, as it accepts 77mm filters without vignetting.