Compare Sigma 20mm F1.4 DG HSM vs Panasonic S Pro 16-35mm F4
Construction
Aperture Blades
9 blades, Rounded blades
9 blades
Colors
Black
Black
Form Factor
Ultra Wide-Angle Prime Lens
Wide-Angle Zoom Lens
Image Size
Full-Frame
Full-Frame
Lens Barrel
Distance scale
Distance scale
Lens Mount
Canon EF-mount, Nikon F-mount, Sigma SA-mount, Sony E-mount, Leica L-mount
Leica L-mount
Motor
Ring-type ultrasonic
Linear Motor
Optical Formula | Elements
15 elements
12 elements
Optical Formula | Groups
11 groups
9 groups
Optical Formula | Special Glass
Two FLD, five SLD elements + Super Multi-Layer coating groups
1 ED + 1 UHR + 3 aspherical elements groups
Dimensions
Filter Diameter
77 mm / 3.03 in
Size | Diameter
91 mm / 3.58 in
85 mm / 3.35 in
Size | Length
130 mm / 5.12 in
100 mm / 3.94 in
Weight
950 g / 33.57 oz
500 g / 17.67 oz
Function
Angle Of View
94.5° Diagonal | 84.0° Horizontal | 61.9° Vertical
107.1° Diagonal | 96.7° Horizontal | 73.7° Vertical (wide) ~ 63.5° Diagonal | 54.4° Horizontal | 37.8° Vertical (tele)
Aperture
f/1.4 ~ f/16
f/4 ~ f/22
Autofocus
Yes
Yes
Focal Length
20 mm
16 mm ~ 35 mm
Focus Type
Internal
Internal
Image Stabilization
No
No
Weather Resistance
No
Yes
Zoom Type
External zoom
Performance
Max Magnification
0.14x
0.23x
Min Focus Distance
300 mm / 11.81 in
250 mm / 9.84 in
Production
Accessory
Lens hood included
Lens hood included
Debut
2015-10-16
2019-11-06
Made In
Japan
Model Name
S-R1635
Reviews
Neofiliac score
55%
60%
Pros
- High level of resolution
- Bright maximum aperture
- Weather-sealed
- Sharpness across the frame
- Beautifully constructed
Cons
- Large and heavy
- Lacks front filter thread
- Lacks weather sealing
- Dark maximum aperture
- External zoom without zoom lock
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