Overview
The 7Artisans 40mm f/2.5 AF Lens (Sony E) is an ultra-compact full-frame prime designed for everyday photography and creative storytelling. Positioned between traditional 35mm and 50mm focal lengths, it delivers a natural perspective that blends environmental context with subject emphasis.
Weighing just 90 g, this lightweight lens is built for portability without sacrificing functionality, offering autofocus performance, smooth manual control, and pleasing atmospheric bokeh in a remarkably compact design.
Core Features
- Versatile 40mm focal length offering a natural perspective between 35mm and 50mm.
- Bright f/2.5 aperture balances low-light capability with compact portability.
- STM autofocus motor supports real-time face and eye tracking on compatible Sony cameras.
- Autofocus and manual focus modes with dedicated AF/MF switch.
- 9-blade diaphragm produces smooth, rounded bokeh with subtle bubble characteristics.
- Compact design measuring approximately 6.3 cm in diameter and 4 cm in length.
- Integrated FN button and clicked aperture ring for efficient exposure control.
- USB Type-C interface for convenient firmware updates.
Optical Performance
The 7-element, 6-group optical construction delivers sharp rendering with natural contrast across the frame. The f/2.5 aperture creates soft, atmospheric bokeh while maintaining excellent detail for portraits, street scenes, and documentary-style photography.
With a minimum focus distance of 40 cm, the lens offers flexible framing for close-up subjects while preserving environmental context.
Autofocus & Handling
The STM autofocus system enables fast, smooth, and quiet focusing for both stills and video applications. When paired with compatible Sony E-mount cameras, it supports real-time face and eye tracking for accurate subject acquisition.
A tactile aperture ring with click stops, a responsive focus ring, and a dedicated AF/MF switch provide intuitive control. The programmable FN button further enhances workflow efficiency for everyday shooting.
Compact & Lightweight Design
Designed as an everyday companion for full-frame mirrorless cameras, this feather-light lens weighs only 90 g. Its compact plastic construction keeps your setup discreet and portable, making it ideal for travel, street photography, and daily creative use.
Optical
| Focal Length | 40mm |
| Maximum Aperture | f/2.5 |
| Minimum Aperture | f/16 |
| Lens Format Coverage | Full-Frame |
| Angle of View | 56.1° |
| Minimum Focus Distance | 40 cm |
| Optical Design | 7 Elements in 6 Groups |
| Aperture Blades | 9 |
General
| Lens Mount | Sony E |
| Focus Type | Autofocus and Manual Focus |
| Filter Size | 46 mm (Front) |
| Firmware Interface | USB Type-C |
| Lens Material | Plastic |
Physical
| Dimensions (ø x L) | 6.3 x 4 cm |
| Weight | 90 g |
What's Included
- 7Artisans AF 40mm f/2.5 Lens (Sony E)
- Front Lens Cap
- Rear Lens Cap
- Lens Hood
- USB Type-C Cable
- Barcode: 88568
- UPC Barcode: 6971835489213
- Supplier Code: AF40F25B-E