Canon EF 400mm f/2.8L IS III USM
Specifications

Filter diameter (mm)

52 Drop in

Max. diameter x length (mm)

163 x 343

Weight (g)

2840

Canon EF 400mm f/2.8L IS III
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Specifications

400mm focal length

f/2.8 maximum aperture

5-stop Image Stabilizer

9-bladed diaphragm

Focus lock/activate controls

World’s lightest 400mm f/2.8 lens*

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Specifications in detail

Optical Features/Specifications

Image Size

Full Frame

35mm film equivalent focal length (mm)

-

Angle of view (horzntl, vertl, diagnl)

5°10', 3°30', 6°10'

Lens construction (elements/groups)

17/13

No. of diaphragm blades

9

Minimum aperture

32

Closest focusing distance (m)

2.5

Maximum magnification (x)

0.17

Distance Information

Yes

Image stabilizer

5-stops

AF actuator

Ring USM1

Accessories

Lens cap

E-180E

Lens hood

ET-155(W III)

Lens case/pouch

Lens Soft case LS400

Maximum number of Hood III compatible with Gelatin Filter Holder III

NC2

Maximum number of Hood IV compatible with Gelatin Filter Holder IV

NC3

Rear End Cap

Lens Dust Cap E

Magnification with Extension Tube EF12 II

0.22-0.03

Magnification with Extension Tube EF25 II

0.3-0.07

Extender Compatiblity

Compatible (Mark III only)

Other Accessories

Canon drop-in 52mm filters
Canon Drop-In Circular Polarizing Filter 52 (W III)
Cannon Lens Short Hood ET-155B
Lens Case 400E

Specifications with EF 1.4x III

Focal Length

560

Minimum aperture

4-25

Maximum Magnification

0.25

AF Possible

Yes

IS

Yes

Specifications with EF 2x III

Focal Length

800

Maximum Aperture

5.6-64

Maximum Magnification

0.36

AF Possible

Yes

IS

Yes

* Amongst lenses for interchangeable lens cameras. As of September 2018, based on Canon’s research

  1. Full time Manual focus
  2. Use 52mm drop in filter holder
  3. Use 52mm drop in filter holder