MTF (Modulation Transfer Function) curves describe to what extent the tested lens can faithfully reproduce contrast of the subject in images it captures. The optical design ensures high resolution and high contrast not just in the center of the image but also in corners and at the edges. It was created in pursuit of superior optical performance, utilizing an effective allocation of two GM (Glass Molded Aspherical) lens elements and one aspherical hybrid lens element. Structurally, the optical formula includes 16 elements in 12 groups. The three main advantages of a fast F2.8 aperture are: A) ability to shoot successfully in lower light levels, B) beautiful and dreamy bokeh, and C) better control of depth-of-field which is particularly useful when intentionally limiting depth-of-field to improve portraits by blurring the area behind the main subject. Thanks to the F2.8 and high optical performance, the 17-70mm F2.8 allows you to capture your subjects with clear details from wide-angle to telephoto. The 17-70mm F2.8 maintains its fast F2.8 maximum aperture throughout the entire zoom range (unlike variable aperture lenses where the maximum aperture changes as you zoom). > To learn more about the benefits of VC when shooting video, please click hereįast F2.8 aperture throughout the entire zoom range for Sony E-mount and FUJIFILM X-mount Find an authorized Tamron dealer to get yours today! In your everyday life and on your trips to distant places, this lens captures all the excitement and discoveries with the finest possible detail. Designed specifically for use with APS-C mirrorless lens cameras, it is light weight and compact, even with VC image stabilization and a host of other user-friendly features. The lens was created to achieve a broad zoom range and excellent image quality. With a focal length range of 17-70mm (25.5-105mm full-frame equivalent), it’s the world's first 17-70mm F2.8 standard zoom lens with a 4.1x zoom ratio for APS-C cameras.

Sharp, quiet, and small-this APS-C zoom lens is extraordinarily versatile and perfect for everyday photography. The Tamron 17-70mm F/2.8 Di III-A VC RXD (Model B070) is a fast everyday zoom lens for Sony E-mount and FUJIFILM X-Mount APS-C mirrorless cameras. Tamron 17-70mm F/2.8 Di III-A VC RXD Lens for Sony E Mount & FUJIFILM X-mount Expand your photo experience with an advanced standard zoom lens

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