Pentax's classic AF 50mm f/1.4 — fast normal prime for the KAF-mount film and digital system.
The Pentax SMC FA 50mm f/1.4 is Pentax's autofocus fast normal prime for the K-mount system — the FA designation indicates full-frame coverage with autofocus. It provides the classic 50mm f/1.4 specification for Pentax film and digital bodies.
Optically good — sharp from f/2.8 with pleasant rendering at f/1.4. SMC coating for contrast and flare control. Autofocus via body-driven screw. The f/1.4 provides excellent low-light capability and subject separation for portraits.
Pentax K mount (KAF) with 49mm filter thread. Approximately 220g — compact. Full-frame coverage — works on K-1. Body-driven screw AF. SMC coating. 7 aperture blades. Minimum focus distance 45cm.
Available used at mid-range prices — Pentax fast primes hold value. Works on modern Pentax DSLRs including the full-frame K-1. For Pentax system users wanting a fast normal prime. Check for smooth focus and clean optics.