Compare Samyang 20mm F1.8 ED AS UMC vs Tamron SP 15-30mm F/2.8 G2 vs Sony FE 16-35mm F4 ZA
Construction
Aperture Blades
7 blades
9 blades
7 blades
Colors
Black
Black
Form Factor
Ultra Wide-Angle Prime Lens
Ultra Wide-Angle Zoom Lens
Wide-Angle Zoom Lens
Image Size
Full-Frame
Full-Frame
Full-Frame
Lens Barrel
Physical aperture ring, Distance scale
Distance scale
Lens Mount
Canon EF-mount, Canon EF-M-mount, Fujifilm X-mount, Micro Four Thirds-mount, Nikon F-mount, Pentax K-mount, Samsung NX-mount, Sony A-mount, Sony E-mount
Canon EF-mount, Nikon F-mount
Sony E-mount
Motor
Ring-type ultrasonic
Optical Formula | Elements
13 elements
18 elements
12 elements
Optical Formula | Groups
12 groups
13 groups
10 groups
Optical Formula | Special Glass
Two aspherical + 3 ED elements, Ultra Multi Coating groups
2 eXpanded glass molded aspherical + 1 molded glass aspherical + 3 aspherical elements, Anti-reflection eXpand + BBAR + fluorine coatings groups
5 Aspherical3 ED Glass groups
Dimensions
Filter Diameter
77 mm / 3.03 in
72 mm / 2.83 in
Size | Diameter
83 mm / 3.27 in
98 mm / 3.86 in
78 mm / 3.07 in
Size | Length
88 mm / 3.46 in
145 mm / 5.71 in
99 mm / 3.90 in
Weight
497 g / 17.56 oz
1110 g / 39.22 oz
518 g / 18.30 oz
Function
Angle Of View
94.5° Diagonal | 84.0° Horizontal | 61.9° Vertical
110.6° Diagonal | 100.4° Horizontal | 77.3° Vertical (wide) ~ 71.6° Diagonal | 61.9° Horizontal | 43.6° Vertical (tele)
107.1° Diagonal | 96.7° Horizontal | 73.7° Vertical (wide) ~ 63.5° Diagonal | 54.4° Horizontal | 37.8° Vertical (tele)
Aperture
f/1.8 ~ f/22
f/2.8 ~ f/22
f/4 ~ f/22
Autofocus
No
Yes
Yes
Focal Length
20 mm
15 mm ~ 30 mm
16 mm ~ 35 mm
Focus Type
Internal
Internal
Extending front
Image Stabilization
No
Yes (4.5 stops)
Yes
Weather Resistance
No
Yes
Yes
Zoom Type
External zoom
External zoom
Performance
Max Magnification
0.2x
0.19x
Min Focus Distance
200 mm / 7.87 in
280 mm / 11.02 in
280 mm / 11.02 in
Production
Accessory
Lens hood included
Lens hood included
Lens hood included
Debut
2016-08-08
2018-08-31
2014-09-15
Model Name
A041
SEL1635Z
Reviews
Neofiliac score
59%
50%
71%
Pros
- Rather affordable
- Optically stabilized
- Weather-sealed
- Good center sharpness
- Interesting focal range
- Sharp towards the wider end
- Weather-sealed
- Optically stabilized
Cons
- Lacks weather sealing
- Not the highest grade of build
- Large and heavy
- Lacks front filter thread
- External zoom without zoom lock
- External zoom without zoom lock
- Metal exterior with plastic interior
- Zeiss tax
- Worse than Sigma 14-24mm F2.8 DG DN
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