Compare Tamron 17-28mm F/2.8 vs Tamron 20mm F/2.8 vs Tamron 24mm F/2.8
Construction
Aperture Blades
9 blades
7 blades
7 blades
Colors
Black
Black
Black
Form Factor
Ultra Wide-Angle Zoom Lens
Ultra Wide-Angle Prime Lens
Wide-Angle Prime Lens
Image Size
Full-Frame
Full-Frame
Full-Frame
Lens Mount
Sony E-mount
Sony E-mount
Sony E-mount
Motor
Stepper motor
Micromotor
Micromotor
Optical Formula | Elements
13 elements
10 elements
10 elements
Optical Formula | Groups
11 groups
9 groups
9 groups
Optical Formula | Special Glass
LE and ED elements + BBAR and fluorine coating groups
Low-dispersion and aspherical elements + BBAR and fluorine coatings groups
Low-dispersion and aspherical elements + BBAR and fluorine coatings groups
Dimensions
Filter Diameter
67 mm / 2.64 in
67 mm / 2.64 in
67 mm / 2.64 in
Size | Diameter
73 mm / 2.87 in
73 mm / 2.87 in
73 mm / 2.87 in
Size | Length
99 mm / 3.90 in
64 mm / 2.52 in
64 mm / 2.52 in
Weight
420 g / 14.84 oz
220 g / 7.77 oz
215 g / 7.60 oz
Function
Angle Of View
103.7° Diagonal | 93.3° Horizontal | 70.4° Vertical (wide) ~ 75.4° Diagonal | 65.5° Horizontal | 46.4° Vertical (tele)
94.5° Diagonal | 84.0° Horizontal | 61.9° Vertical
84.1° Diagonal | 73.7° Horizontal | 53.1° Vertical
Aperture
f/2.8–22 ~ f/2.8–22
f/2.8
f/2.8
Autofocus
Yes
Yes
Yes
Focal Length
17 mm ~ 28 mm
20 mm
24 mm
Focus Type
Internal
Internal
Internal
Image Stabilization
No
No
No
Weather Resistance
Yes
Yes
Yes
Performance
Max Magnification
0.19x
0.5x
0.5x
Min Focus Distance
190 mm / 7.48 in
110 mm / 4.33 in
120 mm / 4.72 in
Production
Accessory
Lens hood included
Lens hood included
Lens hood included
Debut
2019-02-20
2019-10-23
2019-10-23
Model Name
A046
F050
F051
Reviews
Neofiliac score
78%
86%
78%
Pros
- Very good performance at wide end
- Rather compact for an ultra-wide lens
- Weather-sealed
- Compact and lightweight
- Weather-sealed
- 1:2 maximum reproduction
- Very close focusing distance
- Good color rendition
- Sharp from f/2.8
- 0.5x reproduction
- Light in the hand
- Weather-sealed
Cons
- Not as sharp as other f/2.8 alternatives
- Relatively slow autofocus
- Noisy AF
- Not the sharpest
- Slow autofocus
- High distortion
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