Pentax's updated premium APS-C f/2.8 zoom — PLM AF motor and all-weather construction.
The Pentax HD DA* 16-50mm f/2.8 ED PLM AW launched as the definitive constant f/2.8 standard zoom for Pentax APS-C DSLRs. The DA* designation indicates Pentax's premium tier, PLM provides fast electromagnetic AF, and AW means All-Weather sealing.
Optically very good — sharp throughout with HD coating for improved contrast. The constant f/2.8 provides consistent exposure and subject separation. PLM motor is significantly faster and quieter than the older SDM motor in the predecessor. ED glass controls aberrations.
Pentax K mount with 77mm filter thread. Approximately 680g. All-Weather sealing — dust and splash proof. Minimum focus distance 30cm. Quick-shift Focus System. Compatible with all Pentax K-mount bodies. Covers 24-76.5mm equivalent.
Available used at mid-range to professional prices. The definitive Pentax APS-C standard zoom — nothing better in K-mount. The PLM motor update was a significant improvement. In-body SR stabilisation complements the lens. For serious Pentax APS-C shooters wanting the best.