N°8666037 · Family detail
TamronZoom·CANON EF mount·2000
Tamron SP AF 20-40mm F/2.7-3.5 ASPH [IF] 266D
Specifications01
MountCANON EF
Focal length20-40mm
Max aperturef/2.7
TypeZoom
Release year2000
Weight525 g
Filter size77 mm
Min focus distance0.5 m
Max magnification0.098
Aperture blades6
Optical elements15
Groups12
Min aperturef/3.5
AutofocusYes
StabilizationNo
Aperture controlNone
The aperture is controlled from the camera(Canon EF, Minolta/Sony A)
Aperture ring (Manual settings + Auto Exposure setting)(Nikon F)
Lens hood1C0FH - Bayonet-type petal-shaped
EraFilm era
Production statusDiscontinued
Additional Info02
Lens TypeWide-angle zoom lens
Summary02
Tamron SP AF 20–40mm zoom lens for Canon EF mounts, with a maximum aperture of f/2.7–3.5 across the zoom range. Intended for general-purpose wide-to-standard coverage.
AI-assisted summary — verify against linked sourcesWhere can this lens be adapted?
The Canon EF mount has a flange distance of 44 mm. A plain adapter fits a camera whose flange distance is at least 1.46 mm shorter. How lens adapters work
- Native lenses set the aperture, and often the focus, electronically. On a plain adapter they do not work. Use an electronic adapter made for this pair; for many pairs nobody makes one. Fully manual lenses are the exception.
- Sony EAdapter · 26 mm
The camera mount (46.1 mm) is narrower than the lens mount (54 mm). A large rear element can darken the corners.
- Canon RFAdapter · 24 mm
- Nikon ZAdapter · 28 mm
- Fujifilm XAdapter · 26.3 mm
- L-MountAdapter · 24 mm
The camera mount (51.6 mm) is narrower than the lens mount (54 mm). A large rear element can darken the corners.
- Micro Four ThirdsAdapter · 24.75 mm
- Fujifilm G (GFX)Adapter · 17.3 mm
Covers full-frame: it can vignette on a medium format sensor.
- Canon EF-MAdapter · 26 mm
- Canon EFNative
No plain adapter reaches infinity focus on: Nikon F.
Other Mounts03
This lens family is also indexed in 2 other mounts.