Canon EF 100-300mm f/4.5-5.6 USM Lens Specifications and Measurements

Specifications	Canon EF 100-300mm f/4.5-5.6 USM Lens
Focal Length Range	100-300mm
APS-C Sensor DSLRs Only?	N
Lenses / Groups	13/10
Angle of View: Diagonal	24° – 8°15'
Angle of View: Horizontal	20° – 6°50'
Angle of View: Vertical	14° – 4°35'
Aperture
Aperture Range - Wide / Long	f/4.5-32 / f/5.6-38
Aperture Max by Focal Length	100-114mm = f/4.5 115-179mm = f/5.0 180-300mm = f/5.6
Number of Aperture Blades	8
Rounded Aperture?
Weight
Manufacturer Specification Weight	540g
Actual Weight	485g
Lens Hood Weight	30g
In-Use Weight	515g
Size
Manufacturer Spec Size (DxL)	73 x 122mm
Measured Size (DxL)	72.9 x 129.5mm
Max Length at Full Extension	178mm
Internal Zoom? / Extends with Zoom?	N / Y
Zoom Extension Length	50.1mm
Internal Focusing? / Extends with Focusing?	N / N
Lens Hood Size (DxL)	88 x 52.7mm
Lens Length with Hood (Min / Max)	173.3 / 221.4mm
Size of Rings - Zoom / Focus	66.9mm / 7.2mm
Filter Size	58mm
Front Element (Filter Mount) Rotates	N
Focus
AF Motor Type	Ring USM
Full Time Manual Focus	Y
Focus Ring Rotation	125°
Focus Limiter? / Focus Limiter Ranges	N
Distance Info Provided to Camera?	Y
Distance Scale? / Type	Y / Window
Close Focus
Specified Min Focus Distance	1500mm
Tested Min Focus Distance (Wide / Long)	1472mm / 1465mm
Maximum Magnification (MM)
MM with 12mm Extension Tube	0.26-0.04x
MM with 25mm Extension Tube	0.37-0.09x
MM with 250D Closeup Lens
MM with 500D Closeup Lens
Features
Zoom Ring Rotation	79°
Tripod Ring Included? / Removable?	N
Zoom Ring Lock Switch?
Lens Hood Included / Model?	N / ET-65III
Weather Sealed? / Filter Required?	N
Image Stabilization? / Stops? / Tripod Sensing?	N
Metal Mount?	Y
Extender Compatible?	N
Case Included? / Type?	N / LP1019
1200mm x 800mm Subject Framing Distance	100mm = 3643mm 135mm = 4861mm 200mm = 7123mm 300mm = 10131mm
History
Year Introduced	1990

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