Compare Canon RF 800mm F5.6L vs Canon EF 400mm F4 DO IS II vs Canon RF 800mm F5.6L
Construction
Aperture Blades
9 blades, Rounded blades
9 blades
9 blades, Rounded blades
Colors
White
Form Factor
Super Telephoto Prime Lens
Super Telephoto Prime Lens
Super Telephoto Prime Lens
Image Size
Full-Frame
Full-Frame
Full-Frame
Lens Barrel
Tripod collar
Focus limiter, Tripod collar, Distance scale
Tripod collar
Lens Mount
Canon RF-mount
Canon EF-mount
Canon RF-mount
Motor
Ring-type ultrasonic
Ultrasonic
Ring-type ultrasonic
Optical Formula | Elements
26 elements
18 elements
26 elements
Optical Formula | Groups
18 groups
12 groups
18 groups
Optical Formula | Special Glass
2 Fluorite, 1 Super UD, 1 UD (Ultra-low Dispersion). groups
Anti-smear fluorine coating on front element, large-diameter aspheric element, UD element groups
2 Fluorite, 1 Super UD, 1 UD (Ultra-low Dispersion). groups
Dimensions
Filter Diameter
52 mm / 2.05 in
52 mm / 2.05 in
52 mm / 2.05 in
Size | Diameter
163 mm / 6.42 in
128 mm / 5.04 in
163 mm / 6.42 in
Size | Length
432 mm / 17.01 in
233 mm / 9.17 in
432 mm / 17.01 in
Weight
3140 g / 110.95 oz
2100 g / 74.20 oz
3140 g / 110.95 oz
Function
Angle Of View
3.1° Diagonal | 2.6° Horizontal | 1.7° Vertical
6.2° Diagonal | 5.2° Horizontal | 3.4° Vertical
3.1° Diagonal | 2.6° Horizontal | 1.7° Vertical
Aperture
f/5.6 ~ f/64
f/4 ~ f/32
f/5.6 ~ f/64
Autofocus
Yes
Yes
Yes
Focal Length
800 mm
400 mm
800 mm
Focus Type
Internal
Internal
Internal
Image Stabilization
Yes (4 stops)
Yes
Yes (4 stops)
Weather Resistance
Yes
Yes
Yes
Performance
Max Magnification
0.34x
0.13x
0.34x
Min Focus Distance
2600 mm / 102.36 in
3300 mm / 129.92 in
2600 mm / 102.36 in
Production
Accessory
Lens Hood: ET-155 (supplied), Short lens hood (ET-155B)
Lens Hood: ET-120 (supplied), Lens case (400D)
Lens Hood: ET-155 (supplied), Short lens hood (ET-155B)
Debut
2022-02-24
2014-09-15
2022-02-24
Reviews
Neofiliac score
90%
62%
90%
Pros
- Optically stabilized
- Weather-sealed
- Comes with a tripod collar
- Superb build quality
- Very fast autofocus
- Superb autofocus performance
- Very sharp
- Good flare resistance
- Optically stabilized
- Weather-sealed
- Comes with a tripod collar
- Optically stabilized
- Weather-sealed
- Comes with a tripod collar
- Superb build quality
- Very fast autofocus
Cons
- Too expensive
- Some may prefer the f/2.8 version
- Too expensive
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