Pentax's premium DX telephoto — the DA* 60-250mm f/4 with constant aperture and weather sealing.
The Pentax SMC DA* 60-250mm f/4 ED IF SDM is Pentax's premium APS-C telephoto zoom — a Star (*) designated lens with constant f/4 aperture, weather sealing, and SDM ultrasonic autofocus. Covering 90-375mm equivalent, it provides professional-grade telephoto reach on the Pentax K-mount APS-C system. The Star designation represents Pentax's absolute highest tier.
Optical performance is very good. Sharpness is excellent throughout with Star-tier optical quality. The constant f/4 provides consistent exposure and DOF. ED elements ensure chromatic correction. The SDM motor provides quiet lens-based AF. The weather sealing matches Pentax's professional WR-designated lenses. Benefits from in-body SR stabilisation.
Pentax K mount, APS-C (DA*). Filter thread is 67mm. Weight is approximately 1,040 grams — heavy for APS-C. Build quality is outstanding with DA* weather sealing (dust, splash, freeze resistance). SDM ultrasonic motor is independent of body motor. The Star designation and constant f/4 place this among the finest Pentax DX telephoto lenses.
Available on the used market at moderate prices. Check SDM motor, weather seal integrity, and AF accuracy. One of the finest APS-C telephoto zooms Pentax produced. The Star build quality and constant f/4 are professional features. The 90-375mm equivalent range with SR stabilisation provides excellent handheld telephoto capability.