Compare Canon RF 1200mm F8L vs Canon EF 400mm F2.8 L IS III
Construction
Aperture Blades
9 blades, rounded blades
9 blades
Form Factor
Super Telephoto Prime Lens
Super Telephoto Prime Lens
Image Size
Full-Frame
Full-Frame
Lens Barrel
Tripod collar
Focus limiter, Tripod collar, Distance scale
Lens Mount
Canon RF-mount
Canon EF-mount
Material
Magnesium alloy
Motor
Ring-type ultrasonic
Ring-type ultrasonic
Optical Formula | Elements
26 elements
17 elements
Optical Formula | Groups
18 groups
13 groups
Optical Formula | Special Glass
2 Fluorite, 1 Super UD Lenses, 1 UD (Ultra-low Dispersion) groups
Super UD + fluorite elements + Air Sphere + Super Spectra + fluorine coatings groups
Dimensions
Filter Diameter
52 mm / 2.05 in
52 mm / 2.05 in
Size | Diameter
168 mm / 6.61 in
163 mm / 6.42 in
Size | Length
537 mm / 21.14 in
343 mm / 13.50 in
Weight
3340 g / 118.02 oz
2840 g / 100.35 oz
Function
Angle Of View
2.1° Diagonal | 1.7° Horizontal | 1.1° Vertical
6.2° Diagonal | 5.2° Horizontal | 3.4° Vertical
Aperture
f/8 ~ f/64
f/2.8 ~ f/32
Autofocus
Yes
Yes
Focal Length
1200 mm
400 mm
Focus Type
Rear
Image Stabilization
Yes (4 stops)
Yes (5 stops)
Weather Resistance
Yes
Yes
Performance
Max Magnification
0.29x
0.17x
Min Focus Distance
4300 mm / 169.29 in
2500 mm / 98.43 in
Production
Accessory
Lens Hood: ET-160 (supplied), ET-160B Short hood
Lens hood included
Debut
2022-02-24
2018-09-05
Reviews
Neofiliac score
84%
62%
Pros
- Optically stabilized
- Weather-sealed
- Comes with a tripod collar
- Mind-boggling reach
- Superb autofocus performance
- Very, very sharp
- Optically stabilized
- Weather-sealed
- Comes with a tripod collar
Cons
- Very special focal length
- Dark maximum aperture
- Very expensive
- Quite heavy
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