Ultra-Wide 20mm to Mid-Telephoto 70mm Zoom Range.
This zoom range makes the lens an optimal choice for a wide range of movie and still subjects. The 20mm end allows for a wide angle of view when shooting movies with a 16:9 or 2.35:1 aspect ratio that reduces field of view. You’ll also have a minimum focus distance of 11.8" to 9.8" when using AF, and 9.8" throughout the zoom range when focusing manually. The lens’ maximum magnification is 0.39x for detailed close-ups.
G Lens Image Quality.
The Sony FE 20-70mm f/4 G Lens has two AA elements, one aspherical element, three ED glass elements, and one ED aspherical element. This allows for high optical performance that corrects both chromatic and spherical aberration.
Lightweight, Trustworthy Design.
The Sony FE 20-70mm f/4 G Lens is a great lightweight option for photographers on the go. It features an updated dust and moisture resistant design for extra reliability when outdoors. This includes silicon seals around buttons and rubber gasket around the lens mount. The front lens element also features a fluorine coating that repels water, oil, and other contaminants.
Peak AF Performance.
The lens’ two XD linear motors provide smooth and fast focus drive with high AF speed. Moving subjects — like wildlife and sports photography — are reliably tracked when shooting continuous stills at up to 30 fps, or up to 4K 120p, with cameras such as the Sony Alpha 1.
F4 Maximum Aperture.
The F4 maximum aperture remains consistent with any focal length. Therefore, there is no need to use extreme ISO settings at the telephoto end of the range, and high shutter speeds can be used as needed to achieve the desired effect.
Aperture Ring and Iris Lock Switches.
There are an aperture ring click stops that can be turned on and off. There is also an iris lock switch that prevents the aperture ring from being accidentally moved between settings. You’ll also find two customizable focus hold buttons and alternative functions can be assigned from your camera's menu.
Manual Focus Response.
The Sony FE 20-70mm f/4 G Lens has a linear response MF to ensure the focus ring responds correctly to subtle control when focusing manually. This also works effectively with the AF Assist function in cameras, such as the ±7 IV and FX6. You can easily switch between manual and auto focus with the AF/MF switch on the lens’ side.