Pentax's professional telephoto — same as ID 1178, constant f/2.8 70-200mm with AW sealing.
The Pentax HD D FA 70-200mm f/2.8 ED DC AW is Pentax's flagship constant f/2.8 telephoto zoom with All-Weather sealing and DC motor — the professional telephoto for the K-mount system serving both APS-C and full-frame K-1 bodies.
Optically excellent — HD coating provides outstanding contrast with constant f/2.8 throughout the essential telephoto zoom range. ED glass controls chromatic aberration. DC motor delivers faster and quieter AF than body-driven alternatives on older K-mount bodies.
Pentax K mount with 77mm filter thread at approximately 1755g. All-Weather sealed construction provides full dust and splash protection — essential for outdoor professional use. Quick-shift Focus System enables instant manual focus override during AF operation.
Available used at professional prices as the only constant f/2.8 70-200mm for the Pentax K-mount system. Check DC motor operation carefully — some Pentax SDM/DC motors had reliability issues. In-body SR stabilisation compensates for lack of lens-based optical stabilisation.