Canon EF 100-400mm F4.5-5.6L IS USM Telephoto Zoom Lens

Image size:

24x36mm

Macro feature:

None

Zoom type:

	6-group linear zoom (zoom extension: 79.6mm)
	Front of lens barrel moves

Lens mount type:

Canon EF mount

Focal length, aperture ratio:

100-400mm, 1:4.5-5.6

Minimum focusing distance:

1.8m

Manual focusing:

Set focus mode switch, operate manual focusing ring (full-time mechanical manual focusing system)

Dimensions and weight:

92mm diameter x 189mm, 1360g (prototype weight)

Magnification:

	At 100mm - 0.06x
	At 400mm - 0.20x

Angle of view at infinity:

	Diagonal (43.2mm) - 24-6
	Vertical (24mm) - 14-3
	Horizontal (36mm) - 20-5

Field:

	At 100mm - 393x591
	At 400mm - 119x177

Coating:

Super spectra coating

Filter size:

77mm diameter, P=0.75mm. (Up to 1 filter attachable)

Lens configuration:

17 elements in 14 groups (fluorite element for G3, Super UD glass for G7)

Aperture blades:

8

Aperture control:

Pulse control with EMD (enabled simultaneously with AF drive)

Aperture value/indicator:

Maximum: f/4.5-5.6 (indicator on lens barrel), Minimum: f/32-38 (f/32-40 for lenses featuring 1/3-stop increments

Rotation angle:

62

Drive system:

Ring USM drive

Drive noise:

40dB or less (based on Canon's Standard Test Method)

Drive speed:

H/0.54 to L/1.67 seconds or shorter (lens drive speed from infinity to minimum focusing distance)

Depth of field markings:

None

Signal transmission:

	EOS signal transmission, including 5 types of information (including absolute distance information)
	1 - Lens mode
	2 - Lens type
	3 - Metering information
	4 - Focal length
	5 - AF drive information

Focusing range:

1.8m to infinity (at all focal lengths)

Infrared index:

Provided

Focusing extension mechanism:

Rear-focusing method, with focusing cam operating the floating elements, groups 4 and 6

Focusing distance limiting switch:

	Two focusing distance ranges can be set
	1 - 1.8m-infinity
	2 - 6.5m-infinity