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Sony makes 100 – 400 mm full-frame zoom lens 80% cheaper and 65% lighter

Sony's latest full-frame zoom lens is lightweight, but not fast.
ⓘ Sony
Sony's latest full-frame zoom lens is lightweight, but not fast.
Sony demonstrates that full-frame zoom lenses with long focal lengths don’t have to be heavy or expensive. While the brand-new FE 100–400 mm f/5.6–8 isn’t particularly fast, it is comparatively compact and affordable. Sony nevertheless promises fast autofocus, optical image stabilization, and sharp photos.

Sony is expanding its lens lineup with a third 100–400 mm zoom lens. However, while the two older models were relatively fast for a telephoto zoom lens with a maximum aperture of f/4.5, the new model has a maximum aperture ranging from f/5.6 to f/8, depending on the focal length. This also makes it more difficult to use teleconverters, which effectively reduce the lens’s light-gathering ability even further.

This decision offers significant advantages in terms of the lens’s price and weight. With a list price of $850, the new lens is $3,450, or 80 percent, cheaper than the Sony FE 100–400 mm f/4.5 GM. Weighing 654 grams, the new lens is also about 1.2 kilograms, or 65 percent, lighter. The lens is 16.4 cm long with a diameter of 7.8 cm. Despite its lower price, Sony has opted for a complex design consisting of 15 elements in 10 groups and includes Optical SteadyShot (OSS).
 


Two ED lenses and two lenses with aspherically ground surfaces are designed to deliver high image quality across the entire zoom range. With a minimum focus distance of 0.86 meters, the lens achieves a maximum magnification of 0.41. The lens barrel features three sliders that can be used to lock the zoom, switch between autofocus and manual focus, and turn image stabilization on and off.

Pricing and availability

The Sony FE 100–400 mm f/5.6–8 OSS full-frame zoom lens will be released in late August 2026 at a suggested retail price of $850.
 

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> Expert Reviews and News on Laptops, Smartphones and Tech Innovations > News > News Archive > Newsarchive 2026 08 > Sony makes 100 – 400 mm full-frame zoom lens 80% cheaper and 65% lighter
Hannes Brecher, 2026-08- 4 (Update: 2026-08- 4)