Canon RF 400mm F2.8 L IS USM Lens Specifications and Measurements

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Specifications	Canon RF 400mm F2.8 L IS USM Lens

Year Introduced	2021
Mounts On	Full-Frame
Lenses / Groups	17/13
Angle of View: Diagonal	6° 10'
Angle of View: Horizontal	5°10'
Angle of View: Vertical	3°30'

Aperture
Aperture Range - Wide / Long	f/2.8-32
Number of Aperture Blades	9
Rounded Aperture?	Y

Weight
Manufacturer Specification Weight	102 oz (2890g)
Actual Weight	101.7 oz (2880g)
Lens Hood Weight	8.8 oz (250g)
In-Use Weight	110.5 oz (3130g)

Size
Manufacturer Spec Size (DxL)	6.42 x 14.45” (163 x 367mm)
Measured Size (DxL)	6.94 x 14.71” (176 x 373.7mm)
Max Diameter at Tripod Ring	6.7” (169.1mm)
Max Length at Full Extension	14.71” (373.7mm)
Internal Focusing? / Extends with Focusing?	Y / N
Lens Hood Size (DxL)	7.7 x 6.41” (195.5 x 162.7mm)
Lens Length with Hood (Min-Max)	20.1 - 20.1” (510.6 - 510.5mm)
Size of Rings: Focus / Zoom	3” (76.3mm)
Filter Size	DI 52mm UV ► CP ►
Front Element (Filter Mount) Rotates	N

Focus
AF Motor Type	USM
Full Time Manual Focus	Y
Focus Ring Rotation	540°
Focus Limiter? / Focus Limiter Ranges	Y / 8.2' (2.5m) - 23.0' (7m) 23.0' (7m) - ∞ Full
Distance Scale? / Type	N

Close Focus
Specified Min Focus Distance	98.43” (2500mm)
Tested Min Focus Distance (Wide / Long)	96.93” (2462mm)
Maximum Magnification (MM)	0.17x

Features
Tripod Ring Included? / Removable?	Y / N
Lens Hood Included / Model?	Y / ET-155 (WIII) Buy ►
Weather Sealed? / Filter Required?	Y /
Image Stabilization? / Stops? / Tripod Sensing?	Y / 5.5 / Y
Extender Compatible?	Y
Case Included? / Type?	Y / LS400 Buy ►
47.25" x 31.5" Subject Framing Distance	23.62" x 15.75" Target: 400mm = 43.85' 23.62" x 15.75"mm Target: 560mm = 30.72' (w/ 1.4x) 800mm = 43.44' (w/ 2.0x)
1200mm x 800mm Subject Framing Distance	600mm x 400mm Target: 400mm = 13367mm 600mm x 400mm Target: 560mm = 9362mm (w/ 1.4x) 800mm = 13240mm (w/ 2.0x)

Review	Canon RF 400mm F2.8 L IS USM Lens

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