Tamron 20mm F/2.8 Di III OSD M1:2 Full-Frame Lens (2019)
Product Gallery
Product Overview
Tamron 20mm F/2.8 Di III OSD M1:2 is a full-frame wide-angle macro lens for Sony E-mount mirrorless system. It shares with the 24mm and 35mm F/2.8 Di III the same dimensions, filter size, and feature set.
Part of Tamron's recent focus on Sony's increasingly popular mirrorless system, the 20mm F/2.8 Di III OSD M1:2 is exceptionally compact and lightweight. It has good close-focusing capability for its focal length, delivering a 1:2 maximum magnification. Tamron has also designed the lens for fast and quiet autofocusing, making it a good option for stills and video alike.
Ratings
What we found**
Neofiliac score 86% (not directly comparable across industries)
Pros
- Compact and lightweight
- Weather-sealed
- 1:2 maximum reproduction
- Very close focusing distance
- Good color rendition
Cons
- Noisy AF
- Not the sharpest
What external reviewers found***
External score 73% (not directly comparable across industries)
Pros
- Good build quality
- Excellent image sharpness at f/2.8
- Excellent results at all focal lengths with very nice bokeh, background blur, color rendition, AF, low distortion (except at 11mm)
- Very good Bokeh balls, background blur and color rendition
- Good cor...
Cons
- Slow autofocus
- Slow focus response
- No optical stabilization
- No stabilization
- Inaccurate barrel effect
Price Comparison
Specifications
Construction
Aperture Blades
7 blades
Colors
Black
Form Factor
Ultra Wide-Angle Prime Lens
Image Size
Full-Frame
Lens Mount
Sony E-mount
Motor
Micromotor
Optical Formula | Elements
10 elements
Optical Formula | Groups
9 groups
Optical Formula | Special Glass
Low-dispersion and aspherical elements + BBAR and fluorine coatings groups
Dimensions
Filter Diameter
67 mm / 2.64 in
Size | Diameter
73 mm / 2.87 in
Size | Length
64 mm / 2.52 in
Weight
220 g / 7.77 oz
Function
Angle Of View
94.5° Diagonal | 84.0° Horizontal | 61.9° Vertical
Aperture
f/2.8
Autofocus
Yes
Focal Length
20 mm
Focus Type
Internal
Image Stabilization
No
Weather Resistance
Yes
Performance
Max Magnification
0.5x
Min Focus Distance
110 mm / 4.33 in
Production
Accessory
Lens hood included
Debut
2019-10-23
Model Name
F050
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Launch Comparison
Clear List
3rd-Party Review Videos
External Reviews
sonyalpha[1]
Reviewer score 69%The Tamron 20mm F2.8 Di III OSD M 1:2 (330 euros) is an excellent wide angle lens. There is not yet a Lightroom lens profile but I hope it will come in a future release of Lightroom to correct Distorsion and Vignetting automatically. The Bokeh Balls are good wide open and circular but as soon as you close down you see the 7 blades of the aperture and you don't have anymore a circle. The color rendition is very good.
Find the original article here.
Pros
- Very short focusing distance
- Very close focusing distance (1:2)
- Very good bokeh/background blur
Cons
- Not yet a Lightroom lens profile
- Less ” excellent” than the Tamron
sonyalpha[2]
Reviewer score 79%The Tamron 11-20mm F2.8 Di III-A RXD (900 euros) is an exceptional zoom lens for APSC. It provide excellent results at all focal lengths with very nice bokeh, background blur, color rendition, AF, low distortion (except at 11mm) …. The only minus is the resistance to flare.
Find the original article here.
Pros
- Excellent results at all focal lengths with very nice bokeh, background blur, color rendition, AF, low distortion (except at 11mm)
- Very good Bokeh balls, background blur and color rendition
- Good corners
Cons
- Resistance to flare is average with strong effect when facing the sun
- Very small aperture and resistance to flare less good than competition
cameralabs[3]
Reviewer score 69%The Tamron 20mm f2.8 Di III OSD M1:2 offers a fairly unique proposition for owners of Sony's full-frame mirrorless cameras. It's a small and light prime lens with weather sealing, delivering good to very good resolution in the APS-C image-circle at normal shooting distances. On the downside, its unique selling point of 1:2 magnification delivered results that looked mushy outside of the centre in my tests. Plus the Tamron is very slow to focus, although this won’t be a big issue for mostly static subjects.
Find the original article here.
Pros
- 1:2 magnification
- Very wide angle of view
- Very good image-circle at normal shooting distances
Cons
- Slow autofocus
- Slow focus response
pcmag[4]
Reviewer score 81%The Tamron 11-20mm F2.8 Di III-A RXD fills a notable gap in Sony's APS-C lens catalog. It's a wide, made-for-APS zoom with dust and splash protection. Its optics are stellar, and it gathers twice as much light as Sony's 10-18mm.
Find the original article here.
Pros
- Wide-angle lens with dust and splash protection
- Sharp center resolution
- F2.8 optics
Cons
- No optical stabilization
- No stabilization
pcmag[5]
Reviewer score 75%The Tamron 20mm f/2.8 Di III OSD M1:2 nabs images with excellent detail. There is some distortion, but in-camera corrections or Raw adjustments make short work of it. The real drawback is the focus system, which is a bit slower and noisier than more modern lenses.
Find the original article here.
Pros
- Compact design
- 1:2 macro focus
- Wide angle of view
- In-body stabilization
Cons
- Inaccurate barrel effect
- No optical stabilization
digitalpicture[6]
Reviewer score 67%The Tamron 20mm f/2.8 Di III OSD Lens delivers excellent image sharpness, especially for the price. The bayonet-mount rigid molded plastic petal-shaped Tamron HF050 hood is rather small. Tamron emphasizes that this lens was "Designed in Japan" but in fine print admits that it was "Made in Vietnam"
Find the original article here.
Pros
- Excellent image sharpness at f/2.8
- Compact design
- Good build quality
Cons
- Very strong barrel distortion
- No manual focus adjustment
User Reviews
Comments
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References
- ^ Tamron 20mm F2.8 Di III OSD M 1:2 (F050). [sonyalpha]. https://sonyalpha.blog/2019/12/20/tamron-20mm-f2-8-di-iii-osd-m-12-f050/. 2019-12-20. Retrieved 2021-06-06.
- ^ Tamron 11-20mm F2.8 Di III-A RXD. [sonyalpha]. https://sonyalpha.blog/2021/05/31/tamron-11-20mm-f2-8-di-iii-a-rxd/. 2021-05-31. Retrieved 2022-01-21.
- ^ Tamron 20mm f2.8 Di III M1:2 review. [cameralabs]. https://www.cameralabs.com/tamron-20mm-f2-8-di-iii-osd-m12-review-2/. Retrieved 2022-01-21.
- ^ Tamron 11-20mm F2.8 Di III-A RXD Review. [pcmag]. https://www.pcmag.com/reviews/tamron-11-20mm-f28-di-iii-a-rxd. 2021-08-03. Retrieved 2022-01-21.
- ^ Tamron 20mm f/2.8 Di III OSD M1:2 Review. [pcmag]. https://www.pcmag.com/reviews/tamron-20mm-f28-di-iii-osd-m12. 2020-02-04. Retrieved 2021-03-22.
- ^ Tamron 20mm f/2.8 Di III OSD M1:2 Lens Review. [digitalpicture]. https://www.the-digital-picture.com/Reviews/Tamron-20mm-f-2.8-Di-III-OSD-Lens.aspx. Retrieved 2022-01-21.
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Scores are not directly comparable across industries.
These key takeaways ("pros" and "cons") and summaries are identified from third-party reviews. They may differ from the original texts.
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