Tamron 20mm F/2.8 Di III OSD M 1:2 Lens
The Tamron 20mm f/2.8 OSD M 1:2 is a 20mm f/2.8 lens designed for Sony E mount cameras. Used copies start from $174.08 on GearFocus, with buyer protection on every purchase.
Tamron 20mm F/2.8 Di III OSD M 1:2 Lens
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Lens Overview — Tamron 20mm f/2.8 OSD M 1:2
Key Features — Tamron 20mm f/2.8 OSD M 1:2
20mm Full-Frame Prime: Fixed 20mm focal length covers full-frame Sony E-mount sensors, suitable for landscapes, architecture, and interiors.
f/2.8 Maximum Aperture: Wide aperture allows for better low-light shooting and some background separation at this focal length.
1:2 Macro Capability: Achieves a 1:2 maximum magnification ratio, enabling close-up detail shots without a dedicated macro lens.
Autofocus with OSD Motor: Optimized Silent Drive motor delivers quiet, responsive autofocus suited to both stills and video on Sony E-mount bodies.
Lightweight at 220g: One of the lightest full-frame 20mm primes available, reducing fatigue during extended handheld shooting.
Sony E-Mount Native: Designed specifically for Sony E-mount mirrorless systems, ensuring full electronic communication and compatibility.
Lens Specifications — Tamron 20mm f/2.8 OSD M 1:2
| Spec | Detail |
|---|---|
| Use Cases | Macro |
| Lens Type | Wide-Angle |
| Format | Full Frame |
| Zoom/Prime | Prime |
| Focal Length | 20mm |
| Maximum Aperture | f/2.8 |
| Camera System | Mirrorless |
| Lens Mount | Sony E |
| Autofocus | Yes |
| Focus Type | Auto, Manual |
| Image Stabilization | None |
| Filter Thread | 67mm |
Description — Tamron 20mm f/2.8 OSD M 1:2
The Tamron 20mm f/2.8 Di III OSD M 1:2 is a prime wide-angle lens designed for Sony E-mount mirrorless cameras, with full-frame sensor coverage. Its fixed 20mm focal length and f/2.8 maximum aperture make it a practical choice for wide-angle photography across a variety of subjects. The lens weighs just 220g, keeping your kit light whether you are traveling or shooting on location.
Both autofocus and manual focus are supported, offering flexibility for different shooting styles. A 67mm filter thread provides easy compatibility with commonly available filter accessories. Note that this lens has no built-in image stabilization, so pairing it with a camera body that offers in-body stabilization is worth considering.
Pros — Tamron 20mm f/2.8 OSD M 1:2
- ✓Lightweight at just 220g, making it easy to carry for extended shooting sessions
- ✓Full-frame coverage on Sony E-mount mirrorless cameras
- ✓Wide maximum aperture of f/2.8 for a 20mm prime
Cons — Tamron 20mm f/2.8 OSD M 1:2
- ✗No image stabilization — shooters must rely on in-body stabilization
- ✗Fixed 20mm focal length offers no zoom flexibility
- ✗f/2.8 maximum aperture, while solid for a wide prime, is not as fast as some alternatives in this category
Reviews — Tamron 20mm f/2.8 OSD M 1:2
Videos — Tamron 20mm f/2.8 OSD M 1:2
Tamron 20mm F2.8 Hands-on Review — DPReview TV
Frequently Asked Questions — Tamron 20mm f/2.8 OSD M 1:2
What camera mount does this lens fit?+
This lens is built for the Sony E-mount system. It is designed for mirrorless cameras and covers full-frame sensors.
Does this lens have image stabilization?+
No, this lens does not include built-in image stabilization. Photographers using it on a camera with in-body image stabilization can rely on that system instead.
Does this lens support autofocus?+
Yes, the lens supports autofocus as well as manual focus. Shooters can switch between the two depending on the situation.
What filter size does this lens use?+
The lens has a 67mm filter thread, which is a common size that works with a wide range of polarizers, ND filters, and other standard accessories.
How heavy is this lens?+
The lens weighs 220g, making it one of the lighter options in the full-frame wide-angle prime category for Sony E-mount.