7Artisans has announced the AF 40mm f/2.5 FE, a compact full-frame prime lens that emphasizes portability, autofocus performance, and affordability.
Part of the company’s Lite Series, the lens arrives with a retail price of just $159, making it one of the most budget-friendly autofocus primes for Sony E-mount users.
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A Lightweight Everyday Prime
Weighing only 90 grams (3.17 ounces) for the E-mount version, the AF 40mm f/2.5 FE is designed to be nearly unnoticeable on camera. Measuring 63mm in diameter and 40mm in length, the compact form factor aligns with the Lite Series’ focus on portability. The lens features a plastic exterior construction with a 46mm filter thread.
Its optical design consists of seven elements in six groups, paired with a nine-blade diaphragm for smooth bokeh rendering. With a 40mm focal length and a 56.1° field of view, the lens sits between traditional 35mm and 50mm primes, offering a natural perspective well-suited for street, documentary, and everyday photography. The minimum focusing distance is 0.4m (1.31 ft), allowing moderately close subject framing.
For more budget-friendly primes, see Amazon 7Artisans listings or B&H Photo 7Artisans lenses.
Autofocus and Aperture Control
The AF 40mm f/2.5 FE employs an STM stepping motor to support continuous autofocus, including real-time face and eye detection on compatible Sony cameras. This makes it suitable for both still photography and video capture. The aperture range spans f/2.5 to f/16, balancing light-gathering capability with compact size. 7Artisans notes that the lens produces a soft, atmospheric bokeh with a subtle “bubble” character.
A clicked aperture ring provides tactile exposure adjustments, while a one-click switch enables quick transitions between autofocus and manual focus. An additional customizable function button is built into the barrel for workflow flexibility.
Mount Options and Availability
The AF 40mm f/2.5 FE is initially available for Sony E-mount, with Nikon Z and Leica L versions planned for later release. On APS-C bodies, the lens delivers a crop equivalent closer to 60mm, offering a natural short-telephoto perspective. Priced at $159, the lens is set to ship beginning February 26, 2026.
Specifications
| Feature | Specification |
|---|---|
| Focal Length | 40mm |
| Maximum Aperture | f/2.5 |
| Lens Construction | 7 elements in 6 groups |
| Aperture Blades | 9 rounded |
| Filter Thread | 46mm |
| Minimum Focus Distance | 0.4m (1.31 ft) |
| Weight | 90g (E-mount) |
| Mounts | Sony E (Nikon Z, Leica L later) |
| Price | $159 |
| Availability | February 26, 2026 |
Check 7Artisans AF 40mm Prices on Amazon
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View 7Artisans AF 40mm Prices on Adorama
Tip: A compact autofocus prime that balances portability, everyday usability, and affordability.
Conclusion
The 7Artisans AF 40mm f/2.5 FE is a refreshing addition to the budget prime lens market. Combining autofocus, portability, and affordability, it offers a versatile focal length that suits street, travel, and casual portraiture. With its lightweight design and accessible price, it’s poised to become a go-to everyday prime for Sony shooters seeking a compact full-frame option without a premium price tag.
For more third-party lens coverage, see 7Artisans lens news.
