The Sony Vario-Tessar T* FE 24-70mm f/4 ZA OSS is a compact standard zoom lens designed for Sony’s full-frame E-mount mirrorless cameras, developed jointly by Zeiss and Sony and one of the first two zoom lenses announced alongside the original full-frame Sony a7 and a7R. It’s built for photographers who want a versatile, all-day walk-around lens covering landscapes, portraits, and everything in between with the sharpness of Zeiss optics.
Optically, the lens covers a 24-70mm focal range with a constant f/4 maximum aperture throughout the zoom, offering consistent exposure settings at any focal length. Based on the Zeiss Tessar optical concept, the 12-element, 10-group design includes five aspherical elements and one extra-low dispersion (ED) glass element, helping keep the lens compact while minimizing flaring, distortion, and chromatic aberrations. Zeiss’s signature T* anti-reflective coating further reduces flare and boosts contrast, and a 7-blade circular aperture diaphragm contributes to smooth, natural-looking bokeh.
Autofocus uses an internal focusing design driven by a linear (stepper) autofocus motor, delivering quiet, essentially noiseless focusing well suited to both stills and video. As a fly-by-wire E-mount lens, manual focusing is achieved electronically through Sony’s DMF (Direct Manual Focus) mode rather than a direct mechanical connection. Optical SteadyShot (OSS) image stabilization is built in, helping counteract camera shake for sharper handheld results, particularly useful on Sony bodies without in-body stabilization.
Build quality includes an all-metal barrel construction with a ribbed metal zoom grip and dust- and moisture-resistant sealing, giving the lens a solid, premium feel in hand despite its compact size. The lens measures approximately 2.87 x 3.72 in (73 x 94.5mm) and weighs about 426g, with a minimum focusing distance of 1.31 ft (0.4m) at 24mm, extending slightly at longer focal lengths.
As an FE lens, the Vario-Tessar T* FE 24-70mm f/4 ZA OSS is compatible with all Sony E-mount cameras, delivering its full wide-to-short-telephoto field of view on full-frame bodies while producing an effective 36-105mm equivalent range on Sony’s APS-C E-mount cameras.
Key Features
– 24-70mm constant f/4 standard zoom (Zeiss Vario-Tessar T*, ZA) for Sony full-frame E-mount
– 12 elements in 10 groups, including 5 aspherical elements and 1 ED element
– Zeiss T* anti-reflective coating
– Linear (stepper) autofocus motor; internal, non-rotating front element
– Optical SteadyShot (OSS) image stabilization
– 7-blade circular aperture diaphragm
– Dust- and moisture-resistant, all-metal construction
– Minimum focusing distance of 1.31 ft (0.4m) at 24mm
– Compact, lightweight design (approximately 426g)
– Compatible with Sony full-frame and APS-C E-mount cameras

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