Sony FE 28-70mm f/2 GM Lens (Sony E)

The FE 28-70mm f/2 GM is a standard zoom that holds f/2 throughout — a full stop
faster than the f/2.8 zooms it competes with, which is the argument for carrying
it instead of a set of primes. It weighs 2 lb and measures 5.5″, about 28% larger
than the 24-70mm f/2.8 GM II for twice the light.

Optics

• XA (extreme aspherical), Super ED, ED and aspherical elements against aberration.
• Nano AR Coating II to suppress flare and ghosting.
• Floating focus design holding sharpness from infinity down to the 1.2′ minimum focusing distance.
• 11-blade rounded diaphragm for circular bokeh.

Autofocus and video

• Four XD linear motors, near-silent, supporting continuous shooting to 120 fps and video AF to 240 fps.
• Internal focusing for consistent length on a gimbal.
• Minimal focus breathing, with Breathing Compensation support on select Sony bodies.

Controls

• Manual aperture ring with a de-click option for silent adjustment.
• Zoom smoothness switch to set torque between smooth and tight.
• Two customizable focus hold buttons and a focus mode switch.
• Lockable lens hood with a filter window for adjusting a polarizer without removing it.

Build

• Rear-weighted balance for handheld use.
• Dust and moisture resistant with rubber gaskets and seals.
• Fluorine coating on the front element.