Sony E lens

Sony FE 40mm F2.5 G

40 mm, f/2.5, made for full frame. It mounts natively on 8 of our APS-C cameras; on the a6400 it frames like 60 mm.

40 mm · 60 mm equiv. on a6400
f/2.5
49 mm filter
173 g
Weather-sealed

45 mm long68 mm49 mm filter thread

Drawn from Sony's published size: 68 × 45 mm. Details simplified.

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On your camera

The view, the weight with the camera (battery and card included) and what the maker says about each pair. It is made for full-frame sensors and covers APS-C with room to spare.

Every camera in our catalogue this lens mounts on: 8
Camera	View (35 mm equiv.)	With the camera	Fit and maker's notes
Sony a6000	60 mm	517 g	Fits and works Native mount: it fits and works. No stabilisation with this pair: neither the lens nor the camera has it. Sony: “The SteadyShot is not supported.” Distortion correction is always on. Sony: “The [Lens Comp.: Distortion] setting will be set to "Auto".” Aperture-ring display quirks. Sony: “When Iris ring is switched between auto iris mode and manual iris mode, on-screen display (LCD monitor /Viewfinder) may flicker for a brief second and focus position may be reset.” (and 7 more lines about it) Sony's page for this pair
Sony a6100	60 mm	569 g	Fits and works Native mount: it fits and works. No stabilisation with this pair: neither the lens nor the camera has it. Sony: “The SteadyShot is not supported.” Distortion correction is always on. Sony: “The [Lens Comp.: Distortion] setting will be set to "Auto".” Sony's page for this pair
Sony a6400	60 mm	576 g	Fits and works Native mount: it fits and works. No stabilisation with this pair: neither the lens nor the camera has it. Sony: “The SteadyShot is not supported.” Distortion correction is always on. Sony: “The [Lens Comp.: Distortion] setting will be set to "Auto".” Sony's page for this pair
Sony a6600	60 mm	676 g	Fits and works Native mount: it fits and works. Distortion correction is always on. Sony: “The [Lens Comp.: Distortion] setting will be set to "Auto".” Sony's page for this pair
Sony a6700	60 mm	666 g	Fits and works Native mount: it fits and works. Distortion correction is always on. Sony: “The [Lens Comp.: Distortion] setting will be set to "Auto".” Sony's page for this pair
Sony ZV-E10	60 mm	516 g	Fits and works Native mount: it fits and works. Distortion correction is always on. Sony: “The [Lens Comp.: Distortion] setting will be set to "Auto".” Stabilisation off in the Standard SteadyShot setting. Sony: “The SteadyShot function does not operate when SteadyShot is set to [Standard].” Neither the lens nor the camera is stabilised; use a faster shutter speed or a support. Sony's page for this pair
Sony ZV-E10 II	60 mm	550 g	Fits and works Native mount: it fits and works. Distortion correction is always on. Sony: “The [Lens Comp.: Distortion] setting will be set to "Auto".” Stabilisation off in the Standard SteadyShot setting. Sony: “The SteadyShot function does not operate when SteadyShot is set to [Standard].” Neither the lens nor the camera is stabilised; use a faster shutter speed or a support. Sony's page for this pair
Sony FX30	60 mm	819 g	Fits and works Native mount: it fits and works. Distortion correction is always on. Sony: “The [Lens Comp.: Distortion] setting will be set to "Auto".” Sony's page for this pair

What it frames

60 mm60 mm68 mm

Highlighted: this lens on the a6400. A zoom's dashed frame is its longest view.

At its closest (25 cm from the sensor) it fills the frame of the a6400 with a subject about 10 cm wide.

On the a6400, to scale

Side view drawn from the published depth of the camera and length of the lens. 576 g together.

Every lens with a 49 mm thread

Other standard primes for Sony E

The nearest in focal length, with the numbers that differ.

Viltrox AF 40mm F2.5 Air60 mm equiv. · f/2.5 · 167 g (−6 g) · 52 mmCompare
Sigma 45mm F2.8 DG DN Contemporary68 mm equiv. · f/2.8 · 230 g (+57 g) · 55 mmCompare
Samyang AF 45mm F1.8 FE68 mm equiv. · f/1.8 · 162 g (−11 g) · 49 mmCompare
Sony E 35mm F1.8 OSS53 mm equiv. · f/1.8 · 154 g (−19 g) · 49 mmCompare
Sony FE 35mm F1.4 GM53 mm equiv. · f/1.4 · 524 g (+351 g) · 67 mmCompare
Sony FE 35mm F1.853 mm equiv. · f/1.8 · 280 g (+107 g) · 55 mmCompare

Questions about this lens

Which cameras does the Sony FE 40mm F2.5 G fit?

8 APS-C cameras in our catalogue: a6000, a6100, a6400, a6600, a6700, ZV-E10, ZV-E10 II, FX30. It is made for full frame, so it also fits the full-frame cameras on its mount.

What does it frame like on APS-C?

40 mm frames like 60 mm on the a6400 (1.5x).

What filter size does it take?

49 mm screw-in filters. Every lens with a 49 mm thread.

Where these facts come from

Facts checked 9 Oct 2026 against the makers' specification pages. How we check

Size, weight, filter thread, close focus and magnification are Sony's published figures. We have not tested this lens; for image quality, read reviews from people who have.

Specifications

Mount: Sony E
Made for: Full-frame sensors (covers APS-C too)
Focal length: 40 mm
Maximum aperture: f/2.5
Lens stabilisation: No
Weather sealing: Yes, per the maker
Filter thread: 49 mm
Weight: 173 g
Size (diameter × length): 68 × 45 mm
Closest focus: 25 cm
Maximum magnification: 0.23x
Autofocus: Yes
Announced: 2021
Model number: SEL40F25G