Tamron AF 10-24mm f/3.5-4.5 SP Di II LD Aspherical (IF) Pentax B001P camera lens

Ultra-wide zoom for APS-C Pentax

The Tamron AF 10-24mm f/3.5-4.5 SP Di II LD Aspherical (IF) is an ultra-wide zoom lens designed for Pentax digital SLR cameras with APS-C sensors. It provides a 10-24mm focal length that delivers a 15-36mm equivalent field of view. This new lens suits photographers who need expansive perspectives for architecture, interiors or landscapes.

Variable f/3.5-4.5 maximum aperture

The aperture ranges from f/3.5 at the wide end to f/4.5 at 24mm, with a minimum of f/22-29 for deep depth of field. This variable maximum aperture is the specification that determines low-light capability and background separation. Buyers who need a constant f/2.8 aperture throughout the zoom range should consider other options.

10-24mm range with 15-36mm equivalent

The zoom covers 10-24mm, giving a 15-36mm equivalent on APS-C cameras and a 16-38.4mm equivalent on other APS-C formats. It comfortably handles wide architectural interiors and sweeping landscapes. The range runs out for telephoto compression, portrait isolation or any subject that demands focal lengths longer than 24mm.