Compare Sony 400mm F2.8 GM vs Tamron 50-400mm F4.5-6.3 vs Sony 55mm F1.8 ZA
Construction
Aperture Blades
11 blades
9 blades, rounded aperture blades
9 blades
Colors
White
Black
Black
Form Factor
Super Telephoto Prime Lens
Super Telephoto Zoom Lens
Normal Prime Lens
Image Size
Full-Frame
Full-Frame
Full-Frame
Lens Barrel
Focus limiter, Tripod collar, Distance scale
Lens Mount
Sony E-mount
Sony E-mount, Sony E-mount
Sony E-mount
Material
Magnesium alloy
All-metal construction
Motor
Linear Motor
Linear Motor
Stepper motor
Optical Formula | Elements
23 elements
24 elements
7 elements
Optical Formula | Groups
17 groups
18 groups
5 groups
Optical Formula | Special Glass
1 fluorite and 3 ED elements, Nano AR and fluorine coatings groups
3 aspherical elements groups
Dimensions
Filter Diameter
40.5 mm / 1.59 in
67 mm / 2.64 in
49 mm / 1.93 in
Size | Diameter
158 mm / 6.22 in
89 mm / 3.50 in
64 mm / 2.52 in
Size | Length
359 mm / 14.13 in
183 mm / 7.20 in
71 mm / 2.80 in
Weight
2895 g / 102.30 oz
1155 g / 40.81 oz
281 g / 9.93 oz
Function
Angle Of View
6.2° Diagonal | 5.2° Horizontal | 3.4° Vertical
46.8° Diagonal | 39.6° Horizontal | 27.0° Vertical (wide) ~ 6.2° Diagonal | 5.2° Horizontal | 3.4° Vertical (tele)
43.0° Diagonal | 36.2° Horizontal | 24.6° Vertical
Aperture
f/2.8
f/4.5–6.3 ~ f/22–32
f/1.8 ~ f/22
Autofocus
Yes
Yes
Yes
Focal Length
400 mm
50 mm ~ 400 mm
55 mm
Focus Type
Internal
Internal
Internal
Image Stabilization
Yes
Yes
No
Weather Resistance
Yes
Yes
Yes
Zoom Type
External zoom
Performance
Max Magnification
0.16x
0.5x
0.14x
Min Focus Distance
2700 mm / 106.30 in
250 mm / 9.84 in
500 mm / 19.69 in
Production
Accessory
Lens Hood: ALC-SH155 (supplied)
Lens hood included
Lens Hood: ALC-SH131 (supplied)
Debut
2018-06-27
2022-08-24
2013-10-16
Model Name
SEL400F28GM
SEL55F18Z
Reviews
Neofiliac score
62%
59%
88%
Pros
- Exceptionally faster autofocus
- Lighter than the competition
- Optically stabilized
- Weather-sealed
- Comes with a tripod collar
- Compatible with teleconverters
- Optically stabilized
- Weather-sealed
- Versatile focal range
- Beautifully built
- Weather-sealed
- Very sharp across the frame
Cons
- Very expensive
- Dark maximum aperture
- Long & heavy
- Questionable image quality of a superzoom
- Quite expensive for a 1.8/50mm
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