Compare SIGMA 18-50mm F2.8 DC DN vs Sigma 16-28mm F2.8 DG DN vs Panasonic S Pro 16-35mm F4
Construction
Aperture Blades
7 blades, Rounded blades
9 blades, Rounded blades
9 blades
Colors
Black
Black
Form Factor
Standard Zoom Lens
Ultra Wide-Angle Zoom Lens
Wide-Angle Zoom Lens
Image Size
APS-C
Full-Frame
Full-Frame
Lens Barrel
Distance scale
Lens Mount
Leica L-mount, Sony E-mount
Leica L-mount, Sony E-mount
Leica L-mount
Motor
Stepper motor
Stepper motor
Linear Motor
Optical Formula | Elements
13 elements
16 elements
12 elements
Optical Formula | Groups
10 groups
11 groups
9 groups
Optical Formula | Special Glass
1 Super Low Dispersion and 3 aspherical elements groups
5 FLD, 4 aspherical groups
1 ED + 1 UHR + 3 aspherical elements groups
Dimensions
Filter Diameter
55 mm / 2.17 in
72 mm / 2.83 in
77 mm / 3.03 in
Size | Diameter
65 mm / 2.56 in
77 mm / 3.03 in
85 mm / 3.35 in
Size | Length
75 mm / 2.95 in
101 mm / 3.98 in
100 mm / 3.94 in
Weight
290 g / 10.25 oz
450 g / 15.90 oz
500 g / 17.67 oz
Function
Angle Of View
77.4° Diagonal | 67.4° Horizontal | 47.9° Vertical (wide) ~ 32.2° Diagonal | 27.0° Horizontal | 18.2° Vertical (tele)
107.1° Diagonal | 96.7° Horizontal | 73.7° Vertical (wide) ~ 75.4° Diagonal | 65.5° Horizontal | 46.4° Vertical (tele)
107.1° Diagonal | 96.7° Horizontal | 73.7° Vertical (wide) ~ 63.5° Diagonal | 54.4° Horizontal | 37.8° Vertical (tele)
Aperture
f/2.8 ~ f/22
f/2.8 ~ f/22
f/4 ~ f/22
Autofocus
Yes
Yes
Yes
Crop Factor
1.5
Focal Length
18 mm ~ 50 mm
16 mm ~ 28 mm
16 mm ~ 35 mm
Focal Length (35mm Equivalent)
27.0 mm ~ 75.0 mm
Focus Type
Internal
Internal
Internal
Image Stabilization
No
No
Weather Resistance
Yes
Yes
Yes
Zoom Type
External zoom
Internal zoom
External zoom
Performance
Max Magnification
0.18x
0.23x
Min Focus Distance
120 mm / 4.72 in
250 mm / 9.84 in
250 mm / 9.84 in
Production
Accessory
Lens Hood: LH582-02 (supplied)
Lens Hood: LH756-01 (supplied)
Lens hood included
Debut
2021-10-19
2022-06-01
2019-11-06
Made In
Japan
Model Name
S-R1635
Reviews
Neofiliac score
55%
76%
60%
Pros
- Constant f/2.8 aperture
- Very sharp wide open
- Dust and splash protection
- Internal zoom
- Weather-sealed
- Good image quality
- Quite compact for what it is
- Weather-sealed
- Sharpness across the frame
- Beautifully constructed
Cons
- External zoom without zoom lock
- Not stabilized
- Dark maximum aperture
- External zoom without zoom lock
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