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Certified Keeper Canon RF 100-400mm f/5.6-8 IS USM
86 PixelMeter Score 23 reviews

Pros Pros
  • Fast, quiet, and reliable autofocus
  • Compact and lightweight design
  • Affordable price point
  • Effective image stabilization
  • Impressive macro capabilities and magnification
Cons Cons
  • Slow maximum aperture
  • Lack of included lens hood
  • No weather sealing
  • Poor background rendering and bokeh
  • Absence of tripod collar

Launch price Launch price $649
Focal length & aperture Focal length & aperture 100-400mm f/5.6-8
Mount & coverage Mount & coverage Canon RF · Full-Frame
Stabilization Stabilization Optical IS, 5.5 stops (CIPA)
Close focus Close focus 88 cm (0.41x)
Filter thread Filter thread 67mm
Autofocus motor Autofocus motor Nano ultrasonic
Weight & size Weight & size 635g (1 lb 6.4 oz) · 79.5 x 164.7 mm (3.13 x 6.48 in)

Announcement date Announcement date September 14, 2021
Launch MSRP Launch MSRP $649
Lens mount Lens mount Canon RF
Image circle coverage Image circle coverage Full-Frame
Lens type Lens type Zoom

Elements Elements 12
Groups Groups 9
Special elements Special elements 1 UD
Coatings Coatings Super Spectra Coating
Front fluorine coating Front fluorine coating No

Focal length (wide) Focal length (wide) 100mm
Focal length (tele) Focal length (tele) 400mm
Max aperture (wide) Max aperture (wide) f/5.6
Max aperture (tele) Max aperture (tele) f/8
Minimum aperture Minimum aperture f/32
Diaphragm blades Diaphragm blades 9

Diagonal angle of view Diagonal angle of view 24° - 6°

Autofocus motor Autofocus motor Nano ultrasonic
Minimum focus distance Minimum focus distance 88 cm
Maximum magnification Maximum magnification 0.41x
Focus mechanism Focus mechanism Internal focus

Optical stabilization (OIS) Optical stabilization (OIS) Yes
OIS rating OIS rating 5.5 stops

Aperture ring Aperture ring No
AF/MF switch AF/MF switch Yes

Weight Weight 635g (1 lb 6.4 oz)
Maximum diameter Maximum diameter 79.5mm (3.13 in)
Length Length 164.7mm (6.48 in)
Filter thread Filter thread 67mm
Weather sealing Weather sealing None
Internal zoom Internal zoom No
Tripod collar Tripod collar Not supported

Lens hood Lens hood ET-74B, optional
Teleconverter compatibility Teleconverter compatibility 1.4x and 2.0x