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The Sony FE 40mm F2.5 G is an ultra-compact full-frame prime for E-mount, built for everyday carry. It pairs a 40mm field of view with an F2.5 aperture, three aspherical elements and one ED element for sharp corners and controlled color fringing. Dual linear motors give fast, quiet autofocus, and the lens adds a manual aperture ring, a focus-hold button and dust and moisture resistance. It suits street, travel and video shooters who want a small, well-built standard lens; rivals like the Sony 35mm F1.8 and 50mm F1.8 are faster but larger, while the 40mm splits the difference in framing.
In stockSold by AVC Photo & Video SpecialtyReturns: Sold by a Walmart Marketplace seller; returns go to the seller under the seller's returns policy.
Owners and reviewers praise the 40mm F2.5 G as a tiny, sharp, well-built prime with fast and quiet autofocus. The main complaint is the F2.5 maximum aperture, which limits low-light use and shallow depth of field next to faster primes.
The Sony FE 40mm F2.5 G is an ultra-compact, lightweight standard prime lens for E-mount cameras. It covers full-frame sensors and also works on APS-C cameras. It is made for both stills and video.
The optics use three aspherical elements for sharpness across the image and an ED (Extra-low Dispersion) glass element to reduce chromatic aberration. The maximum aperture is F2.5, and a 7-blade circular aperture shapes the background blur. Two linear motors drive autofocus for fast, precise tracking.
Controls include an AF/MF switch and a manual aperture ring with a selectable click on/off setting for stills or movies. A programmable focus-hold button can be set to several custom functions. Manual focus has a linear response. The lens is dust and moisture resistant.












