This all new 28-300mm lens delivers superb image quality in a remarkably compact, lightweight package. The advanced optical construction includes four LD (Low Dispersion) glass elements, three Molded-Glass Aspherical elements, one Hybrid Aspherical element, one XR (Extra Refractive Index) glass element, and one element of UXR (Ultra-Extra Refractive Index) glass. The full use of specialized glass elements contributes to making the lens as compact and lightweight as possible, while minimizing aberrations, resulting in superior image quality. This versatile high-power zoom is designed for use on both full-frame and APS-C DSLRs incorporates PZD (Piezo Drive)-a standing-wave ultrasonic motor system optimized for swift, quiet AF-and Tamron’s acclaimed VC (Vibration Compensation) mechanism. Its upgraded cosmetic design with elegant tungsten silver brand ring, circular diaphragm for spectacular blur effects and moisture-resistant construction add to the appeal of this exceptional new All-In-One zoom. Specifications: Model Name A010 Focal Length 28-300 Format size Di Maximum Aperture F/3.5-6.3 Minimum Aperture F/22-40 Diagonal Angle of View (on Full-Frame) 75 Degree23′ – 8 Degree15′ Diagonal Angle of View (on APS-C) 52 Degree58′ – 5 Degree20′ Lens Construction 19 elements, 15 groups Minimum Focus Distance 19.3 in at 300mm Max. Mag. Ratio 1:3.5 19.3″ at 300mm Filter Diameter Ø67mm Overall Length 3.8″ Maximum Diameter Ø74.4mm Weight 19 oz. Diaphragm Blades 7 (circular diaphragm) Standard Accessory Flower-shaped Lens Hood
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Vibration Compensation system
Compact and lightweight design
Three aspherical elements