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Tamron 11-20mm F2.8 Di III-A RXD for Canon RF
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Tamron · 11-20 mm · f/2.8 · Canon RF mount · APS-C

Tamron 11-20mm F2.8 Di III-A RXD for Canon RF

From $599 — 1 offer
KEY FACTS
BrandTamron
Announcement dateNov 2024
Released2024
Production started2024
Production statusIn Production
What We Like
+Constant F2.8 aperture across entire 11-20mm zoom range provides superior low-light performance and bokeh control
+Compact and lightweight design (84.2mm length, 340g weight) ideal for travel and handheld use with APS-C bodies
+Fast, quiet RXD autofocus motor delivers quick and silent focusing suitable for both stills and video
+Excellent optical performance with minimal aberrations thanks to advanced element design (GM, XLD, LD elements) and BBAR-G2 coating
+Close-focusing capability with 0.15m minimum focus distance at wide end enables creative wide-angle macro photography
+First Tamron lens for Canon RF mount, marking the brand's entry into the Canon RF ecosystem
Worth Knowing
−Higher price point ($659 USD) at nearly double the cost of Canon's own RF-S 10-18mm F4.5-6.3 IS STM alternative
−Limited to APS-C sensor format only; full-frame Canon RF users experience mandatory crop mode when attached
−Some reported flare artifacts in backlit conditions despite manufacturer claims of flare resistance
−Canon's sensor cleaning function does not work when using third-party lenses like this Tamron on certain RF bodies (e.g., R7)

General

Brand
Tamron
Announcement date
ⓘ
Refers to the date the manufacturer publicly announced the upcoming release and general specs of this camera.
Nov 2024
Released
ⓘ
Refers to the year this camera was officially made available for sale.
2024
Production started
2024
Production status
ⓘ
Current status of lens manufacturing (e.g., in production, discontinued).
In Production
Read our notes on general
The Tamron 11-20mm F2.8 Di III-A RXD is Tamron's first ultra-wide zoom for Canon RF-mount APS-C mirrorless cameras, delivering a constant F2.8 aperture across its entire range. Its compact design (340g, 84.2mm length) and fast RXD autofocus motor make it excellent for travel and video, while advanced optics with GM aspherical and low-dispersion elements provide sharp, well-corrected images with minimal aberrations. At $659, it commands a premium over Canon's kit offerings but delivers superior optical performance and aperture speed for dedicated APS-C shooters.

Optics

Minimum Aperture
F16
Lens Construction
12 elements in 10 groups
Special Elements
2 GM (Glass Molded Aspherical), 1 XLD (eXtra Low Dispersion), 2 LD (Low Dispersion) elements
Coating
BBAR-G2 (Broad-Band Anti-Reflection Generation 2), Fluorine Coating
Angle of View
101° 44′ (wide) to 68° 7′ (tele) for APS-C format
Min focal length
11 mm
Max focal length
20 mm
Focal range
ⓘ
Shortest to longest focal length of the lens (zoom range start - end )
11-20 mm
Zoom lens
ⓘ
Zoom allows you to vary the focal length, change between long shots and close-ups
Yes
Max aperture wide
2.8
Max aperture zoom
2.8
Blades
ⓘ
Number of diaphragm blades in aperture
7020
Autofocus mode
Yes
Closest focusing distance
ⓘ
Minimum distance for a subject to be in focus.
15 cm01500

Focus

Autofocus Motor
RXD (Rapid eXtra-silent stepping Drive)
Maximum Magnification Ratio
1:4 (wide), 1:7.6 (tele)
AF/MF Switch
Yes

Format

Image Circle
APS-C (Di III-A)
Full Frame Equivalent
17.6-32mm (Canon RF mount)

Video features

Video Capable
Yes
Firmware Updatable
Yes, via TAMRON Lens Utility software with USB connection
Standard Accessories
Flower-shaped hood and caps

Physical

Lens mount
ⓘ
The lens mount will tell you what type of lens range you can fit onto the camera body. Often the same camera company will have different lens ranges for different cameras.
Canon RF
Lens length
ⓘ
How long the lens is from front to back.
84.2 mm
Lens diameter
ⓘ
Width of the lens at its widest point
73 mm
Lens weight
340 g
Front filter size
ⓘ
Diameter of attachable filters.
67 mm
Maximum format
ⓘ
Largest sensor size compatible with the lens.
APS-C

Features

Weather sealing
ⓘ
Weather sealing capabilities will give you more confidence when shooting in unfavourable conditions.
Yes