Canon EF 400mm f5.6 L USM Lenses

Weight (g):

 

1,250

Filter Diameter (mm):

 

77

Maximum Magnification (x):

 

0.12

Magnification with Extension Tube EF12:

 

0.16-0.03

Magnification with Extension Tube EF25:

 

0.21-0.07

Diagonal Angle of View:

 

6° 10'

Horizontal angle of view:

 

5°10'

Lens Construction (elements/groups):

 

7/6

Max. Diameter x Length (mm):

 

90x256.5

Minimum Aperture:

 

32

No. of Diaphragm blades:

 

8

Closest Focusing Distance (m):

 

3.5

AF Actuator:

 

USM
(Mechanical full-time manual focusing built-in.)

EF1.4x AF (Y/N):

 

N

EF1.4x Focal length (mm):

 

560

EF1.4x f-stop (f):

 

8-45

EF1.4x Maximum magnification (x):

 

0.12

EF2.0x AF (Y/N):

 

N

EF2.0x Focal length (mm):

 

800

EF2.0x f-stop (f):

 

11-64

EF2.0x Maximum magnification (x):

 

0.18