Compare Sigma 16-28mm F2.8 DG DN vs Tamron 17-28mm F/2.8
Construction
Aperture Blades
9 blades, Rounded blades
9 blades
Colors
Black
Form Factor
Ultra Wide-Angle Zoom Lens
Ultra Wide-Angle Zoom Lens
Image Size
Full-Frame
Full-Frame
Lens Mount
Leica L-mount, Sony E-mount
Sony E-mount
Motor
Stepper motor
Stepper motor
Optical Formula | Elements
16 elements
13 elements
Optical Formula | Groups
11 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
Size | Diameter
77 mm / 3.03 in
73 mm / 2.87 in
Size | Length
101 mm / 3.98 in
99 mm / 3.90 in
Weight
450 g / 15.90 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)
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/2.8–22 ~ f/2.8–22
Autofocus
Yes
Yes
Focal Length
16 mm ~ 28 mm
17 mm ~ 28 mm
Focus Type
Internal
Internal
Image Stabilization
No
Weather Resistance
Yes
Yes
Zoom Type
Internal zoom
Performance
Max Magnification
0.18x
0.19x
Min Focus Distance
250 mm / 9.84 in
190 mm / 7.48 in
Production
Accessory
Lens Hood: LH756-01 (supplied)
Lens hood included
Debut
2022-06-01
2019-02-20
Model Name
A046
Reviews
Neofiliac score
76%
78%
Pros
- Internal zoom
- Weather-sealed
- Good image quality
- Quite compact for what it is
- Very good performance at wide end
- Rather compact for an ultra-wide lens
- Weather-sealed
Cons
- Not as sharp as other f/2.8 alternatives
- Relatively slow autofocus
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