Compare Canon EF 400mm F2.8 L IS III vs Canon RF 800mm F11 vs Canon RF 85mm F1.2
Construction
Aperture Blades
9 blades
9 blades, Circular aperture blades
Colors
Black
Form Factor
Super Telephoto Prime Lens
Super Telephoto Prime Lens
Short Telephoto Prime Lens
Image Size
Full-Frame
Full-Frame
Full-Frame
Lens Barrel
Focus limiter, Tripod collar, Distance scale
Lens Mount
Canon EF-mount
Canon RF-mount
Canon RF-mount
Material
Magnesium alloy
Motor
Ring-type ultrasonic
Stepper motor
Ring-type ultrasonic
Optical Formula | Elements
17 elements
11 elements
13 elements
Optical Formula | Groups
13 groups
8 groups
9 groups
Optical Formula | Special Glass
Super UD + fluorite elements + Air Sphere + Super Spectra + fluorine coatings groups
Gapless double-layer diffractive optics groups
Dimensions
Filter Diameter
52 mm / 2.05 in
95 mm / 3.74 in
82 mm / 3.23 in
Size | Diameter
163 mm / 6.42 in
102 mm / 4.02 in
103 mm / 4.06 in
Size | Length
343 mm / 13.50 in
352 mm / 13.86 in
117 mm / 4.61 in
Weight
2840 g / 100.35 oz
1260 g / 44.52 oz
1195 g / 42.23 oz
Function
Angle Of View
6.2° Diagonal | 5.2° Horizontal | 3.4° Vertical
3.1° Diagonal | 2.6° Horizontal | 1.7° Vertical
28.6° Diagonal | 23.9° Horizontal | 16.1° Vertical
Aperture
f/2.8 ~ f/32
f/11 ~ f/11
f/1.2
Autofocus
Yes
Yes
Yes
Focal Length
400 mm
800 mm
85 mm
Focus Type
Rear
Internal
Internal
Image Stabilization
Yes (5 stops)
Yes (4 stops)
No
Weather Resistance
Yes
No
Yes
Performance
Max Magnification
0.17x
0.14x
Min Focus Distance
2500 mm / 98.43 in
6000 mm / 236.22 in
850 mm / 33.46 in
Production
Accessory
Lens hood included
Lens hood included
Lens Hood: ET-89 (sold separately)
Debut
2018-09-05
2020-07-09
2019-02-14
Reviews
Neofiliac score
62%
35%
71%
Pros
- Superb autofocus performance
- Very, very sharp
- Optically stabilized
- Weather-sealed
- Comes with a tripod collar
- Optically stabilized
- 800mm reach for less than $1k
- Relatively lightweight
- Collapsible design saves space
- Exceptionally sharp
- Very bright maximum aperture
- Weather-sealed
- Smooth bokeh
Cons
- Very expensive
- Quite heavy
- Very dark maximum aperture
- Lacks weather sealing
- Not the most solid construction
- Not compatible with teleconverters
- On the heavy side
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