Sony SEL40F25G FE 40mm f/2.5 G Full-Frame Ultra-Compact G Lens


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Sony SEL40F25G FE 40mm f/2.5 G Full-Frame Ultra-Compact G Lens

  • Sony SEL40F25G FE 40mm f/2.5 G Full-Frame Ultra-Compact G Lens
  • Lens Hood (ALC-SH166)
  • Lens Front Cap (ALC-F49S)
  • Lens Rear Cap (ALC-R1EM)

From The Wavelength Blog Read more

Sony SEL40F25G FE 40mm f/2.5 G Full-Frame Ultra-Compact G Lens

The Sony FE 40mm f/2.5 G lens has clear advantages for both photographers and moviemakers. With a wide 40mm angle of view on full-frame bodies and 60mm on APS-C bodies or super 35mm cameras. Packed with features like dual linear motors for fast, precise autofocus and tracking, a bright f/2.5 maximum aperture for beautifully defocused background bokeh, excellent close-up performance, this lens has an ultra-compact and lightweight design making t ideal for all types of content creators.

High-Resolution Performance

The inclusion of three aspherical lens elements compensates for various aberrations and result in high-resolution performance from corner to corner of the image, even from the widest aperture with shallow depth of field. Additionally, the f/2.5 aperture has the maximum light gathering capability during low-light situations and also provides a shallow depth of field. It also delivers beautiful natural bokeh effect with minimal spherical aberration.

Impressive Results

The incorporation of a 7-blade circular aperture allows for round defocused light sources.  This mechanism maximizes the beauty of this large-aperture prime-lens while the wide f/2.5 aperture and circular aperture blades contribute to impressive images in which the subject stands out against a smoothly defocused foreground and background. Additionally, featuring a wide 40mm angle of view contributes in getting a unique perspective through close-up, wide angle shooting.

Dual Linear Motors and Linear Response MF

The Linear Response MF (manual focus) ensures that the focus ring responds directly and linearly to subtle control when focusing manually. The focus ring rotation translates directly to a corresponding change in focus, so control feels immediate and precise in both still and movie modes. The FE 40mm f/2.5 Lens is equipped with two linear motors for fast, precise autofocus tracking allowing you to take full advantage of the continuing rapid advances in the speed and performance of newer camera bodies. Despite instantaneous changes in subject motion, this lens delivers excellent tracking performance making it ideal for situations require tracking a moving subject.

Dust and Moisture Resistant

Designed with adventurers in mind, this ultra-compact FE 40mm f/2.5 G employs dust and moisture resistant design that makes it appropriate for outdoor use, especially when combined with a camera that employs weather-resistant measures.

Additional Features

The lens features a programmable focus-hold button for multiple custom functions. This button performs the traditional function to lock focus when recomposing and can also be customized to a number of other functions depending on your needs. You can also instantly and quickly switch between auto and manual focus, thanks to the AF/MF switch on the side of the lens. This makes operation faster and easier as you let the camera and lens focus for you or decide to take control and manually focus on the precise point you choose. Additionally, the responsive manual aperture ring offers positive action that will satisfy photographers and moviemakers alike. 


Maximum Aperturef/2.5
Minimum Aperturef/22
Focal Length40mm
Maximum Magnification0.2 x (AF), 0.23 x (MF)
Angle of view57°
Minimum Focus Distance0.92 ft (AF), 0.82 ft (MF) (0.28 m [AF], 0.25 m [MF])
Focus TypeAuto and Manual Focus
Image StabilizationYes
Diaphragm Blades7
Fixed Focal Length40mm
Lens FormatFull Frame Sensors
Lens TypePrime Lens


Lens MountSony E-Mount


Weight6.2 oz (173 g)

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