Rokinon 24-70mm f/2.8 AF Zoom Lens for Sony E

The Rokinon 24-70mm f/2.8 AF Zoom Lens for Sony E is Rokinon’s first autofocus standard zoom lens, designed for full-frame Sony E-mount mirrorless cameras and built with a number of functions specifically optimized for video shooting that set it apart from other standard zoom lenses. It’s aimed at photographers and videographers who want a bright, versatile everyday zoom with premium design and solid build quality at a competitive price point.

Optically, the lens covers a 24-70mm focal range with a constant f/2.8 maximum aperture throughout the zoom, offering a 53-86 degree angle of view on full-frame cameras (36-62 degrees on APS-C). The 17-element, 14-group optical construction includes three HR (High Refractive) elements, three ED (Extra-low Dispersion) elements, two aspherical elements, and one H-ASP (Hybrid Aspherical) element, with Rokinon’s UMC (Ultra Multi-Coating) applied to minimize lens flare and ghosting for improved contrast and color neutrality. A 9-blade diaphragm contributes to smooth background rendering.

A standout feature is the lens’s parfocal design, maintaining its focus point as it zooms in or out, a function optimized for video work and borrowed from cine zoom lens design. Autofocus is handled by a Linear STM (Stepping Motor), controlling a larger, heavier focus lens group more quietly and precisely than typical zoom autofocus systems, delivering fast, accurate performance for both stills and video, including Cinematic Video AF that properly controls focus speed during recording to reduce wobbling and keep footage stable. An AF/MF switch allows quick toggling between autofocus and manual focus, and a Custom Mode switch adds further control options.

Build quality includes weather sealing at seven points along the lens barrel, protecting against light dust, rain, and snow for shooting in less-than-ideal conditions. The lens has a minimum focusing distance of 0.35m (1.15 ft.), yielding a magnification ratio of 0.1x to 0.27x, and accepts an 82mm filter thread. It measures approximately 128.5mm (5.1 in.) in length and weighs around 1,027-1,096g.

As a full-frame E-mount lens, the Rokinon 24-70mm f/2.8 AF delivers its full angle of view on Sony full-frame bodies while remaining compatible with Sony APS-C E-mount cameras at a narrower effective field of view.

Key Features
– 24-70mm constant f/2.8 standard zoom for Sony E-mount (full-frame)
– 17 elements in 14 groups, including 3 HR, 3 ED, 2 aspherical, and 1 H-ASP elements
– UMC (Ultra Multi-Coating)
– Parfocal design (maintains focus while zooming)
– Linear STM (Stepping Motor) autofocus with AF/MF switch
– Cinematic Video AF for stable, wobble-reduced video recording
– Custom Mode switch
– 9-blade diaphragm
– Weather sealing at 7 points
– Minimum focusing distance of 0.35m (1.15 ft.); 0.1x-0.27x magnification
– 82mm filter thread
– Approximate weight: 1,027-1,096g
– Compatible with Sony full-frame and APS-C E-mount cameras