Quick answer
The Tokina AT-X 400mm f/5.6 is a super telephoto telephoto lens covering 400mm at f/5.6 for the Canon EF mount. Its smaller maximum aperture favours daylight shooting and keeps the lens compact.
About this lens
Tokina AT-X 400mm f/5.6: a telephoto prime lens with a 400mm focal length and a maximum aperture of f/5.6, made for Canon EF mount cameras. It brings distant subjects closer for sports, wildlife and events.
Tokina AT-X 400mm f/5.6 specifications
- Brand
- Tokina
- Mount
- Canon EF
- Focal length
- 400mm
- Maximum aperture
- f/5.6
- Lens type
- Telephoto
- Format coverage
- full-frame
- Optical construction
- 10 elements in 8 groups
- Aperture blades
- 8
- Minimum focus distance
- 2.5 m
- Maximum magnification
- 0.17x
- Filter thread
- 72 mm
- Weight
- 990 g
- Length
- 202 mm
- Diameter
- 79 mm
Specification source: tokinalens.com
What can you shoot with the Tokina AT-X 400mm f/5.6?
At 400mm this is a super telephoto telephoto, which typically suits:
- Wildlife and birds
- Motorsport and field sports
- Distant subjects and the moon
Its smaller maximum aperture favours daylight shooting and keeps the lens compact.
Full-frame equivalent and field of view
Calculated from the focal length and crop factor. Not measured.
| Sensor | Crop | Equivalent | Horizontal FOV | Diagonal FOV |
|---|---|---|---|---|
| Full frame | 1.0x | 400mm | 5.2° | 6.2° |
| APS-C | 1.6x | 640mm | 3.2° | 3.9° |
Frequently asked questions
What mount does the Tokina AT-X 400mm f/5.6 use?
It uses the Canon EF mount, so it fits Canon EF cameras directly.
What is the focal length of the Tokina AT-X 400mm f/5.6?
It is a fixed 400mm lens with a maximum aperture of f/5.6. That makes it a super telephoto lens.
Is the Tokina AT-X 400mm f/5.6 a prime or a zoom lens?
It is a prime lens with a fixed 400mm focal length. Primes usually open wider than zooms; this one opens to f/5.6.
What is the Tokina AT-X 400mm f/5.6 equivalent on a crop sensor?
On APS-C (1.6x crop) it frames like 640mm on full frame, with a 3.2° horizontal and 3.9° diagonal field of view. These figures are calculated from the focal length and crop factor.
Which cameras does the Tokina AT-X 400mm f/5.6 fit?
Any Canon EF-mount camera, including Canon EOS 1D X, Canon EOS 5D, Canon EOS 5D Mark II, Canon EOS 5D Mark III, and Canon EOS 5D Mark IV and 7 more.
Alternatives for Canon EF from other brands
All Canon EF lensesSame mount, overlapping focal range, closest maximum aperture first.
