Tamron SP 70-300mm F4-5.6 Di VC USD: Digital Photography Review

Descripción

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The Tamron SP 70-300mm F/4-5.6 Di VC was the first lens to feature Tamron's USD (Ultrasonic Silent Drive) auto-focus drive mechanism with full-time manual focus override, and also includes VC (Vibration Compensation) image stabilization (not available on the Sony version). Compatible with full-frame and APS-C cameras, on cropped sensors the SP 70-300mm delivers an effective focal length range of approximately 105-450mm. Construction consists of 17 elements in 12 groups, with XLD (Extra Low Dispersion) and LD (Low Dispersion) elements. Tamron claims that its VC optical image stabilization system allows sharp hand-held images at shutter speeds up to four stops slower than would otherwise be possible - a claim that holds true in our experience of shooting of this versatile lens.