Description

Innovative super telephoto lens G Master F2.8

A super-telephoto lens with a wide aperture, featuring Sony’s most advanced optical technologies for exceptional speed, outstanding G Master resolution and bokeh, as well as professional control and reliability. The SEL400F28GM is the lightest in its class, offering unparalleled freedom of shooting without a tripod.

Key features of the optics:

• Super telephoto lens with a large aperture from the high-end G Master series
• New XD linear motor for ultra-fast, precise and quiet autofocus
• Three fluorine-coated lenses for exceptional resolution
• Sony Nano anti-reflective coating to eliminate reflections and the « ghosting » effect
• Full-time DMF (Direct Manual Focus) and other functions for professional shooting

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Optimized case performance thanks to speed

New, more reliable XD (Extreme Dynamic) linear motors deliver 5x faster tracking performance² on current and future camera bodies. Two of these new motors and algorithms silently drive the lens focusing system faster and more accurately. Optimal performance for advanced camera bodies when shooting dynamic subjects.

Remarkable G Master resolution and bokeh effect

Outstanding G Master resolution and bokeh effect.
Strict standards are applied for exceptional resolution right to the edges of the image. Three fluorine lenses minimize chromatic aberration. Spherical aberration is controlled for optimal bokeh quality. Optional high-performance 1.4x or 2.0x teleconverters can be added for exceptional resolution and contrast, even at 800mm.

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The lightest in the world: only 2.895 grams

The lightest in the world¹: only 2.895 grams.
Innovative optical design composed of three fluorine elements for a featherweight 2.895 grams. Robust magnesium alloy used for the components to reduce the lens’s weight. Exceptional portability and handling. Perfect balance for easy and agile use, with or without a monopod.

Reliability in the most difficult conditions

Reliability in the toughest conditions.
Dust and moisture resistant for outdoor use. A robust magnesium alloy is used for the external lens barrel, tripod mount, and internal barrel components for added strength without increasing weight. The front lens has a fluorine coating that protects against dirt and makes cleaning easier.

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Features designed for the needs of professionals

Features designed for professional needs:
Permanent DMF (Dynamic Focus Mode) enabling manual focus even during continuous AF shooting. Optical image stabilizer with a new setting mode (Mode 3)5 for optimal stabilization during sporting events and easier framing. Four focus lock buttons and a zoom ring with linear-response manual focus.

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Lens configuration

The G Master series lenses enable unparalleled levels of photography and expression thanks to exceptional high resolution and a subtle background bokeh.

[1] Fluoride lens [2] ED glass

MTF Chart

The MTF indicator describes the degree of detail reproduction of a lens, measured as the degree of contrast between finely spaced lines.

[1] Contrast (%) [2] Distance from the optical center of the lens (mm) [3] Maximum aperture [4] Aperture F8 [5] Spatial frequency [6] 10 line pairs/mm [7] 30 line pairs/mm [8] R: radial values T: tangential values

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1. Focusing mode

2. Permanent DMF mode

3. Limitation of the focal range

4. Function selection ring

5. SET Button

6. Compensation of movements

7. Movement compensation method

8. Beep Switch

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