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Canon 100-400mm f/4.5-5.6 L USM IS Lens UA

SKU #: CN100400LISU | Part #: 100-400L IS USM USA
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The 2577A002 Zoom lens , 100-400mm - F/4.5-5.6 is the first EF lens Package features a UV filter to help protect your lens and keep it as new, a Cap keeper so you dont have to go rolling on the floor too, and a lens cleaning kit to keep it sparkling!

The first EF lens with a zoom range from 100mm to 400mm, the EF 100-400mm f/4.5- 5.6L IS USM lens offers high resolution, superb contrast, neutral color balance, and Canon's original built-in Image Stabilizer function. High zoom magnification is achieved by means of a 6-group configuration with 5 movable groups. Fluorite and Super UD glass completely eliminate secondary spectrum for superb color rendition. Auto focusing is fast and silent with Canon's ring USM, and AF speed is further enhanced through an advanced, lightweight rear focusing design that incorporates a floating element for consistent image quality at all focusing distances from 5.9 ft. to infinity. This lens is also equipped with a dual-mode Image Stabilizer suitable for panning as well as stationary subjects. With full-time manual focus, one-touch zooming with a wide grip, and a special ring that permits adjustment of zooming friction, this is a lens that's extremely easy to use, and ideal for a wide variety of applications including nature, wildlife, sports, and documentary photography.


EF 100-400mm f/4.5-5.6L IS USM Specifications

  • Picture Size: 24mm x 36mm
  • Focal Length and Maximum Aperture: 100-400mm, 1:4.5-5.6
  • Optical Construction
    • Lens Construction: 17 elements in 14 groups (fluorite element for G3, Super UD glass for G7)
    • Coating: Super Spectra coating
  • Angle of View at Infinity:

Diagonal extent (43.2mm)

24° - 6° 10'

Vertical extent (24mm)

14° - 3° 30'

Horizontal extent (36mm)

20° - 5° 10'

  • AF Feature
    • Drive System: Ring USM
    • Drive Speed: H/0.54 to L/1.67 sec. or shorter (lens drive speed from infinity to min. focusing distance)
    • Drive Noise: 40 dB or lower (Based on Canon's measuring standards.)
    • Manual Focusing: Enabled with focus mode switch and focusing ring (full-time mechanical manual focusing provided).
    • Focusing Distance Limiting Switch: Two focusing distance ranges can be set:
    1. 1.8m - infinity
    2. 6.5m - infinity
  • Focusing
    • Extension Mechanism: Rear focusing driven by a focus cam to move groups 4 and 6 (floating system).
    • Macro Feature: None
    • Focusing Range: 1.8m/5.9 ft. to infinity (at all focal lengths)
    • Rotating Angle: 62°
    • Distance Scale:

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    • Maximum Magnification and Picture Field:

Min. Focusing Distance

Magnification (X)

Picture Field (mm)

At 100mm

At 400mm

At 100mm


1.8m/5.9 ft



393 x 591

119 x 177

  • Zoom Feature
    • Type: 6-group linear zoom (zoom extension: 79.6mm) Front of lens barrel moves.
    • Focal Length Scale: 100 135 150 200 250 300 350 400 (Marked on fixed lens barrel)
  • Mount
    • Type: Canon EF mount
    • Signal Transmission: 5 items of EOS-dedicated Information (absolute distance information included):
    1. Lens mode
    2. Lens type
    3. Metering information
    4. Focal length
    5. AF drive information
    • Aperture Control: Pulse control with EMD (enabled Simultaneously during autofocusing)
    • Aperture Setting And Markings: Max. aperture: f/4.5-5.6 (marked on lens barrel), Min. aperture: f/32-38 (f/32-40 for cameras featuring 1/3-stop markings)
    • Aperture Blades: 8
    • Depth-of-Field Scale: None
    • Infrared Mark: Provided
  • Filter Size: 77mm, P = 0.75mm (Up to 1 filter attachable)
  • Dimensions and Weight: 92mm/3.6 in. dia. X 189mm/7.4 in. length, 1360g/3 lb.
  • Accessories
    • Hood: ET-83C (Dedicated two-lug bayonet Cylindrical hood attachable in reverse.)
    • Lens Cap: E-77U
    • Lens Case:
      • Soft case: LZ1324
      • Hard case: None
      • (Accommodates the lens with one filter, both front and rear lens caps, and hood attached in reverse.)
    • Rear Lens Cap: Len Dust Cap E
  • Miscellaneous
    • Attachable Extenders: See table below.


With EF 1.4x

With EF 2x

Focal Length



Angle of view

Diagonal extent

17° 34' - 6° 10'

12° - 3° 6'

Vertical extent

9° 48' - 3° 22'

7° - 1° 40'

Horizontal extent

14° 39' - 5° 05'

10° - 2° 35'

Max. Magnification




Manual Focus (AF enabled*)

Manual Focus


_-stop indications

At 100mm: f/6.7-f/45
At 400mm: f/8-f/54

At 100mm: f/9.5-f/64
At 400mm: f/11-f/76

1/3-stop indications

At 100mm: f/6.3-f/45
At 400mm: f/8-f/57

At 100mm: f/9.0-f/64
AT 400mm: f/11-f/81

* With the EOS-3, AF is possible only with the center focusing point. Also, the AF speed will be 67% of the normal AF speed of the prime lens.

    • Extension Tube EF12: Compatible
    • Extension Tube EF25: Compatible


Min. Focusing Distance (mm)

Magnification (x)

Picture Field (mm)

At 100mm

At 400mm

At 100mm

At 400mm

At 100mm

At 400mm


Near Distance







Far Distance








Near Distance







Far Distance







  • Image Stabilizer
    • Image Stabilizer: Parallel shifting of Image Stabilizer lens group (group 2)
    • Max. Eccentricity: +1.0mm
    • Max. correctable: +0.5°(At infinity)
    • Shake Detection: Via gyro sensors (1 sensor each for Yaw and pitch)
    • Image Stabilizer Activation: Turned on with the IS ON/OFF sliding switch activated by pressing the shutter button halfway.
    • Centering/Locking: While the Image Stabilizer is unused, the image-stabilizing lens group is centered and locked in position. (The centering and locking conditions are the same as with EF 75-300mm f/4.5-5.6 IS USM.)
    • Mode Selection: With sliding switch
    1. Stabilizer Mode 1: Normal image stabilization.
    2. Stabilizer Mode 2: Image; Stabilization in one direction only. (The specifications are the same as with the EF 300mm f/4L IS USM.)
    • Image Stabilizer continuous operation time and shooting capacity: Same as with the EF 75-300mm f/4-5.6 IS USM.


Included in the box with this product:
  • 77mm Snap-On Lens Cap
  • Lens Dust Cap E (Rear)
  • ET-83C Lens Hood
  • Tripod Collar
  • LZ1324 Lens Case
  • 1-Year Warranty
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