Sony FE 40mm f/2.5 G Lens
The Sony SEL40F25G is a 40mm f/2.5 lens designed for Sony E mount cameras. Used copies start from $619.99 on GearFocus, with buyer protection on every purchase.
Sony FE 40mm f/2.5 G Lens
Used Sony SEL40F25G Listings on GearFocus
Lens Overview — Sony SEL40F25G
Key Features — Sony SEL40F25G
40mm F/2.5 Prime: A natural field of view close to human perspective, well-suited for street, travel, and everyday photography.
Sony G Lens Optics: Built to Sony's G series optical standards, delivering strong sharpness and rendering quality across the frame.
173g Compact Build: One of the lightest full-frame E-mount primes available, making it easy to carry all day without fatigue.
Full-Frame E-Mount Coverage: Designed for Sony's full-frame mirrorless bodies while remaining fully compatible with APS-C E-mount cameras.
Fast, Quiet Autofocus: Linear motor-driven autofocus delivers quick, near-silent focusing suited to both stills and video recording.
Aperture Ring with De-Click: A dedicated aperture ring can be switched between clicked and de-clicked operation for smooth exposure transitions in video.
Lens Specifications — Sony SEL40F25G
| Spec | Detail |
|---|---|
| Use Cases | Portrait, Street, Travel, Video / Cinematography |
| Lens Type | Prime |
| Format | Full Frame |
| Zoom/Prime | Prime |
| Focal Length | 40mm |
| Maximum Aperture | f/2.5 |
| Camera System | Mirrorless |
| Lens Mount | Sony E |
| Autofocus | Yes |
| Focus Type | Auto, Manual |
| Image Stabilization | None |
| Filter Thread | 49mm |
Description — Sony SEL40F25G
The Sony FE 40mm f/2.5 G is a prime lens designed for Sony E-mount mirrorless cameras with full-frame coverage. With a 40mm focal length sitting squarely in the standard range, it delivers a natural perspective that suits a wide variety of shooting situations — from street photography to everyday documentation. The f/2.5 maximum aperture allows for pleasant background separation and helps maintain usable shutter speeds in less-than-ideal lighting.
At just 173g, this lens is genuinely lightweight, making it easy to carry without fatigue during extended shoots or travel. It accepts 49mm filters, a compact thread size that keeps accessory costs in check. Both autofocus and manual focus are supported, giving photographers the flexibility to work in whatever mode suits the moment.
There is no optical image stabilization built into the lens, so stabilization-dependent shooters will want to factor in their camera body's capabilities. For Sony E-mount photographers seeking a compact, capable standard prime, the FE 40mm f/2.5 G offers a well-balanced combination of focal length, aperture, and portability.
Pros — Sony SEL40F25G
- ✓Exceptionally lightweight at just 173g, making it ideal for travel and all-day carry
- ✓f/2.5 maximum aperture provides meaningful depth-of-field control and low-light capability
- ✓Full-frame coverage on Sony E-mount ensures compatibility with a wide range of Sony mirrorless bodies
Cons — Sony SEL40F25G
- ✗No image stabilization, which may be a limitation in low light without a body that provides in-body stabilization
- ✗f/2.5 maximum aperture, while useful, does not match the light-gathering of faster f/1.4 or f/1.8 alternatives
- ✗Single focal length with no zoom flexibility means you'll need to reposition rather than reframe
Reviews — Sony SEL40F25G
- Sony FE 40mm F/2.5G Lens Review
ePHOTOzine · 2021-01-01 - Sony FE 40mm f/2.5 G review
Digital Camera World · 2021-01-01 - Sony FE 40mm f/2.5 G SEL40F25G Review
Imaging Resource · 2021-01-01 - Sony 24mm F2.8, 40mm F2.5, and 50mm F2.5 – Review
DPReview TV - Sony Compact Trio of Lenses - Nearly Perfect (24mm f/2.8G, 40mm f/2.5G, 50mm f/2.5G)
Kai W
Videos — Sony SEL40F25G
Sony 40mm f2.5 G: BETTER than a 50? Full review — Gordon Laing
Frequently Asked Questions — Sony SEL40F25G
What camera mount does the Sony FE 40mm f/2.5 G use?+
This lens is built for the Sony E mount. It is designed for full-frame Sony E-mount mirrorless cameras.
Does this lens have image stabilization?+
No, the Sony FE 40mm f/2.5 G does not include optical image stabilization. Stabilization, if needed, would need to come from a compatible camera body with in-body stabilization.
How heavy is this lens, and is it practical for travel?+
The lens weighs just 173g, making it one of the lighter full-frame prime options available for Sony E-mount. This low weight makes it well-suited for travel, street photography, and situations where keeping your kit light is a priority.
What filter size does the Sony FE 40mm f/2.5 G accept?+
The lens has a 49mm filter thread. This is a compact and commonly available filter size, which helps keep the cost of compatible filters relatively affordable.
Does this lens support autofocus?+
Yes, the lens supports both autofocus and manual focus. You can switch between the two modes depending on your shooting situation.
Is this a zoom or prime lens?+
This is a prime lens with a fixed 40mm focal length. It falls within the standard focal length range and does not offer any zoom capability.