In an announcement today, third-party lens maker Tamron unveiled plans to develop a 15x wide-angle zoom for SLRs.
The Tamron AF 18-270mm f/3.5-6.3 Di II VC LD Aspherical (IF) Macro effectively covers wide to telephoto focal lengths on digital SLRs with APS-C sized sensors. Building on Tamron's tradition of building wide-range zooms that extends back to the company's classic 28-200mm f/3.8-5.6, the 18-270mm f/3.5-5.6 promises a truly impressive coverage range in a reasonably compact, lightweight package.
Earning Tamron's "Macro" badging, the lens will be capable of focusing at distances as close as 20 inches. Likewise, the "VC" moniker indicates that the 18-270mm will sport Tamron's tri-axial Vibration Compensation image stabilization system.
Some tech specs are still TBD, but Tamron outlined basic construction information in today's announcement. The lens will be built of 18 elements in 13 groups, with a conventional 72mm filter diameter at the front element. Multi-layer coatings are employed to control flare; two low-dispersion and three aspherical elements serve to correct distortion and aberrations.
Improved fit and finish details include redesigned rubberized zoom and focus rings, as well as a "delicate matte finish."
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