Canon EF 24-70mm F2.8L USM Specifications

Nickname:

"Breadwinner Mark II"/"Red Brick"

Compatibility:

analog/digital

Diagonal Angle of View:

74° - 29°

Maximum Magnification:

1:3.4

Minimum Aperture:

F22

Number of Aperture Blades:

8

Iris Pattern:

rounded

Minimum Distance:

38cm

Filter Thread:

77mm

Maximum Diameter:

83mm

Length:

124mm

Weight:

950g

Focus Type:

Ring-USM, internal focus mechanism, parfocal

Full Focus Throw:

130°

Dual Pixel CMOS AF:

supported

Zoom Type:

rotary

E-TTL II Distance Information:

yes

IR Capability:

reported by Lens Play and IR Forum

Lens Hood:

EW-83F (bayonet mounted, flower shaped)

Produced:

2002

Tests:

PhotoZone tested on EOS 350D and on EOS 5D Mark II; DxO Labs; SLRgear; LensTests; Popular Photography; Castleman: EF 2.8/24-70 vs. 2.8/28-70mm

PopPhoto Measurements:

24.95-68.40mm F2.85-2.94 at 1:8.8-1:3.5

Additional Information:

Technical Farm offers a cine modified Canon EF 24-70mm F2.8L USM by adding an aperture control ring, which solves the problem of iris control with mount adapters not featuring any electronic couplings. Aiming at cinematographers, they also added gears for follow focus etc. to every control ring. The focus mechanism is slightly altered by adding stops at minimum and maximum focus to prevent infinite focus ring rotation. The modification was launched in 2011. The lens is covered in an article by Wataru Miyamoto.