The acclaimed Tamron 18-270mm VC all-in-one zoom for APS-C format DSLRs has reached an astonishing new level of compactness, performance, and speed with the addition of PZD (Piezo Drive), an innovative ultrasonic autofocus motor based on an advanced piezoelectric design. The result is a lens that’s considerably lighter, noticeably shorter with a much slimmer profile than any previous lens in its class, and provides faster, quieter auto-focusing. Signature features that have made this amazingly versatile lens the world standard in its class have been retained. They include a 28-419mm equivalent (15X) zoom range, an improved compact and lightweight Vibration Compensation (VC) system, macro focusing to 19.3 inches throughout, and, of course, superlative imaging performance. Technical Specifications: Focal Length; 18-270, Maximum Aperture: F/3.5 – 6.3, Angle of view (diagonal): 75°33′- 5°55′, Lens construction: 16 elements, 13 groups, Minimum focus distance: 19.3 in (0.49m), Maximum magnification ratio: 1: 3.8 (at f=270mm: MFD 0.49m), Filter size: Ø62mm, Length: 3.8 in (96.4mm), Diameter: Ø74.4mm (2.9 in), Weight: 450g (15.9 oz), No. of diaphragm blades: 7, Minimum aperture: F/22 - 40, Standard accessories: Flower-shaped lens hood. This lens is designed to fit Sony DSLR cameras with APS-C size sensors