7artisans AF 40mm F2.5 Full-Frame Lens for Sony E Review
The 7artisans AF 40mm F2.5 is our pick for a tiny full-frame carry lens on Sony E. At about 90g it offers autofocus, a 56.1 degree view and a 0.4m minimum focus. Check 7artisans' compatibility list for your exact body before ordering.
The 7artisans AF 40mm F2.5 is our pick for a tiny full-frame carry lens on Sony E. At about 90g it offers autofocus, a 56.1 degree view and a 0.4m minimum focus. Check 7artisans' compatibility list for your exact body before ordering.
$159.00 listed · Save $7.95
5% off
SEBASTIANBASSOLSony E mount · US
Price checked 2026-10-27. Before tax and shipping. Based on the listed price; final price at the retailer.
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Sony shooters who want a very light autofocus prime for travel, street and everyday carry.
You need a wider maximum aperture for low light or heavy background blur, or you shoot with a body marked incompatible.
A good carry lens is one you forget is on the camera. The 7artisans AF 40mm F2.5 is built around that idea: a full-frame autofocus prime at about 90g in the E-mount version, with a 63mm diameter and 40mm length. We recommend it for Sony shooters who want a very small everyday lens for travel, street and daily life.
A natural 40mm view
At 40mm the lens has a 56.1 degree angle of view, a flexible choice between a wide 35mm and a classic 50mm. Our prime versus zoom lens guide explains why a prime can suit relaxed, walk-around shooting.
Autofocus with a close minimum
The lens offers autofocus and manual focus from 0.4m to infinity. The optical design is seven elements in six groups with nine aperture blades, and the aperture runs from F2.5 to F16. The body is plastic, which is part of how it reaches about 90g.
Check compatibility first
7artisans publishes a camera compatibility list with fully compatible, basically compatible and incompatible bodies. Modern bodies such as the A7 IV and A7 III are listed as fully compatible, while the original A7 is marked incompatible. See our lens mounts guide for the basics, and the AF 50mm F1.8 review for a brighter alternative.
Buying recommendation
Choose the AF 40mm F2.5 if you want a lightweight autofocus prime. Skip it if you want a faster aperture.
Use code SEBASTIANBASSOL for 5% off at 7artisans; the price box above shows the listed and with-code prices. The 7artisans offer page has the code and shopping button.
What we like
- About 90g makes it easy to leave on the camera
- Autofocus with manual focus, covering full frame
- Nine aperture blades and 7 elements in 6 groups
- Standard 46mm filter thread
What to know
- F2.5 is slower than an F1.8 or F1.4 prime
- Some bodies are listed as partially compatible or incompatible
Key specs
| Model | 7artisans AF 40mm F2.5, SKU AF40/2.5-B-E |
|---|---|
| Mount and coverage | Sony E (also made for Nikon Z and L mount), full frame |
| Aperture range | F2.5 to F16 |
| Focus | Autofocus and manual; 0.4m to infinity |
| Angle of view | 56.1 degrees |
| Optical design | 7 elements in 6 groups; 9 aperture blades |
| Filter size | 46mm |
| Size, weight and material | 63mm diameter × 40mm length; about 90g (E mount); plastic body |
| US listed price | $159.00 |
Questions
What is the discount code for the 7artisans AF 40mm F2.5 Full-Frame Lens for Sony E?
The 7artisans discount code is SEBASTIANBASSOL for 5% off at 7artisans.store. For Sony E mount, the estimated price is $151.05 USD with SEBASTIANBASSOL, before tax and shipping (2026-10-27). Eligibility for this exact product or variant is unconfirmed. Use on eligible purchases at 7artisans.store. Check the discount in the order summary before paying.
Who is the AF 40mm F2.5 Full-Frame Lens for Sony E best for?
Sony shooters who want a very light autofocus prime for travel, street and everyday carry.
Who should skip the AF 40mm F2.5 Full-Frame Lens for Sony E?
You need a wider maximum aperture for low light or heavy background blur, or you shoot with a body marked incompatible.
Which Sony cameras does it support?
7artisans publishes a compatibility list. It marks bodies such as the A7 IV, A7 III and A7C II as fully compatible and others, such as the original A7, as incompatible. Check your exact body there.
Does it autofocus?
Yes. It has both autofocus and manual focus modes.
What filter size does it use?
46mm.
How close can it focus?
0.4m minimum focus distance.