Sony SEL 400mm f2.8 GM OSS

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SEL 400mm f2.8 GM OSS

This wide aperture super telephoto lens incorporates the most advanced lens technologies that Sony has to offer. This enables remarkable speed, great resolution and G Master series bokeh effects, reliability and professional control options. In addition, the SEL400F28GM is the lightest super telephoto lens in its class and offers unprecedented flexibility for handheld shooting.

Newly developed linear XD (Extreme Dynamic) motor

The linear XD motors in the SEL400F28GM have been redesigned to provide greater thrust and efficiency than conventional motors to take full advantage of the rapidly evolving speed of current and future camera bodies. The linear motor design and component layout have been precisely redesigned to achieve significantly higher thrust. Two of these new motors are built into the SEL400F28GM, providing a 5x increase in tracking moving subjects. This means that the extreme speed of modern camera bodies can be used to capture first-class images of the most dynamic sports or nature subjects. The XD motors are also supported by new algorithms developed specifically for them, which significantly improves the motor's response to control signals and reduces the delay and instability that can occur when driving a large aperture focusing unit for silent, low vibration operation.

Outstanding resolution

All G Master series lenses meet very high standards and ensure that excellent contrast is maintained at high spatial frequency across the entire image. The optical design incorporates three fluorite elements that help to minimize axial aberrations, which can be a problem with large aperture lenses, and also limit chromatic aberrations that can reduce resolution towards the periphery of the image. Bleed is successfully suppressed, allowing clear reproduction of the finest subject details.

Great, natural bokeh

In addition to extensive control of spherical aberration during the development phase, each lens is individually tested and adjusted during manufacture to achieve the highest possible bokeh quality. A circular aperture mechanism with 11 blades also contributes to soft, circular bokeh. With the SEL400F28GM, the small depth-of-field range of a 400 mm F2.8 lens can be used to create images with rich, powerful, out-of-focus backgrounds.

Excellent reflex suppression for perfect sharpness and contrast

The Sony nano-coating is applied to the surfaces inside the lens to avoid reflections that can lead to light reflexes and ghost effects. This significantly improves the clarity and contrast of the image.

Absolute lightweight in its class

An innovative optical design with three fluorite elements and a minimal number of elements at the front of the lens barrel is the secret behind the amazingly low weight of this high-quality lens. Another weight-reducing factor is the use of magnesium alloy components in the barrel. Weighing only 2895 grams, the SEL400F28GM offers mobility and handheld handling that active photographers will appreciate. After repeated practical tests by professional photographers, a design was created that is not front-heavy. This reduces the moment of inertia, which absorbs up to 50 % of the rotation compared to the SAL500F40G. Faster and more precise panning is guaranteed for hand-held shots and shots with a monopod.

Fluorine-coated front element

The fluorine coating on the front lens element protects it from dirt and fingerprints and makes it easier to wipe them off if something does stick to the surface.

Integrated optical image stabilizer with new mode 3

Optical image stabilization is integrated, making it easier to achieve razor-sharp images when taking hand-held shots. In addition to Mode 2 for panning, the SEL400F28GM has a new Mode 3 with a complex algorithm that makes it easier to capture subjects when tracking moving subjects. Mode 3 provides optimal stabilization for tracking and shooting dynamic, unpredictable sports scenes. 5-axis image stabilization is available when using the SEL400F28GM with α series bodies that have built-in image stabilization.

Customizable focus hold buttons in four locations

Focus hold buttons in four places on the lens barrel ensure easy access in any shooting situation. The focus hold buttons can be customized via the camera body menu, which means that they can be assigned a user-selected function. For example, AF with eye detection.

With function ring for the first time

The SEL400F28GM is equipped with a new function ring that can be used to select the PRESET (preset focus) and FUNCTION functions. Functions such as Power Focus can be assigned to FUNCTION mode via the camera body menu.

APS-C/full format selection

When the selector switch of the function ring is set to FUNCTION, the function ring can be rotated to switch between APS-C and full-frame angle of view.

Useful filter slot

The SEL400F28GM is equipped with a filter slot that can accommodate ø 40.5 mm ND and other types of filters as well as the VF-DCPL1 circular polarizer. The VF-DCPL1 circular polarizer can be rotated for the desired polarization when it is inserted in the lens.

Focus range limiter

The focus range limiter switch allows you to select a limited focus range when the fastest possible focusing is required. There are three settings to choose from: FULL, 7 m-2.7 m and ∞-7 m.

Versatile, very robust tripod device

The tripod collar is easy to rotate and highly reliable thanks to its ball bearings. The tripod collar also has 90-degree click stops and a switch that activates or deactivates the click stops as required. With the click stops activated, it is easy to switch between horizontal and vertical camera orientation. The click stops can be deactivated if stepless operation with low resistance is required.