Compare Sigma 16-28mm F2.8 DG DN vs Tamron 50-400mm F4.5-6.3 vs Tamron 17-28mm F/2.8
Construction
Aperture Blades
9 blades, Rounded blades
9 blades, rounded aperture blades
9 blades
Colors
Black
Black
Form Factor
Ultra Wide-Angle Zoom Lens
Super Telephoto Zoom Lens
Ultra Wide-Angle Zoom Lens
Image Size
Full-Frame
Full-Frame
Full-Frame
Lens Mount
Leica L-mount, Sony E-mount
Sony E-mount, Sony E-mount
Sony E-mount
Motor
Stepper motor
Linear Motor
Stepper motor
Optical Formula | Elements
16 elements
24 elements
13 elements
Optical Formula | Groups
11 groups
18 groups
11 groups
Optical Formula | Special Glass
5 FLD, 4 aspherical groups
LE and ED elements + BBAR and fluorine coating groups
Dimensions
Filter Diameter
72 mm / 2.83 in
67 mm / 2.64 in
67 mm / 2.64 in
Size | Diameter
77 mm / 3.03 in
89 mm / 3.50 in
73 mm / 2.87 in
Size | Length
101 mm / 3.98 in
183 mm / 7.20 in
99 mm / 3.90 in
Weight
450 g / 15.90 oz
1155 g / 40.81 oz
420 g / 14.84 oz
Function
Angle Of View
107.1° Diagonal | 96.7° Horizontal | 73.7° Vertical (wide) ~ 75.4° Diagonal | 65.5° Horizontal | 46.4° Vertical (tele)
46.8° Diagonal | 39.6° Horizontal | 27.0° Vertical (wide) ~ 6.2° Diagonal | 5.2° Horizontal | 3.4° Vertical (tele)
103.7° Diagonal | 93.3° Horizontal | 70.4° Vertical (wide) ~ 75.4° Diagonal | 65.5° Horizontal | 46.4° Vertical (tele)
Aperture
f/2.8 ~ f/22
f/4.5–6.3 ~ f/22–32
f/2.8–22 ~ f/2.8–22
Autofocus
Yes
Yes
Yes
Focal Length
16 mm ~ 28 mm
50 mm ~ 400 mm
17 mm ~ 28 mm
Focus Type
Internal
Internal
Internal
Image Stabilization
Yes
No
Weather Resistance
Yes
Yes
Yes
Zoom Type
Internal zoom
External zoom
Performance
Max Magnification
0.18x
0.5x
0.19x
Min Focus Distance
250 mm / 9.84 in
250 mm / 9.84 in
190 mm / 7.48 in
Production
Accessory
Lens Hood: LH756-01 (supplied)
Lens hood included
Lens hood included
Debut
2022-06-01
2022-08-24
2019-02-20
Model Name
A046
Reviews
Neofiliac score
76%
59%
78%
Pros
- Internal zoom
- Weather-sealed
- Good image quality
- Quite compact for what it is
- Optically stabilized
- Weather-sealed
- Versatile focal range
- Very good performance at wide end
- Rather compact for an ultra-wide lens
- Weather-sealed
Cons
- Dark maximum aperture
- Long & heavy
- Questionable image quality of a superzoom
- Not as sharp as other f/2.8 alternatives
- Relatively slow autofocus
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