Compare Samyang 16mm F2 ED AS UMC CS vs Samyang 20mm F1.8 ED AS UMC vs Canon RF 24mm F1.8 Macro
Construction
Aperture Blades
8 blades
7 blades
9 blades, Rounded blades
Colors
Black
Form Factor
Wide-Angle Prime Lens
Ultra Wide-Angle Prime Lens
Wide-Angle Prime Lens
Image Size
APS-C
Full-Frame
Full-Frame
Lens Barrel
Physical aperture ring, Distance scale
Physical aperture ring, Distance scale
Lens Mount
Canon EF-M-mount, Canon EF-mount, Micro Four Thirds-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, 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 RF-mount
Material
Metal barrel, metal mount
Motor
Stepper motor
Optical Formula | Elements
13 elements
13 elements
11 elements
Optical Formula | Groups
11 groups
12 groups
9 groups
Optical Formula | Special Glass
1 ED glass element, 1 aspheric element, 1 hybrid aspheric element groups
Two aspherical + 3 ED elements, Ultra Multi Coating groups
It uses one ultra-low dispersion element and one aspherical element. It features Canon’s Super Spectra Coating (SSC). groups
Dimensions
Filter Diameter
77 mm / 3.03 in
77 mm / 3.03 in
52 mm / 2.05 in
Size | Diameter
83 mm / 3.27 in
83 mm / 3.27 in
74 mm / 2.91 in
Size | Length
89 mm / 3.50 in
88 mm / 3.46 in
63 mm / 2.48 in
Weight
583 g / 20.60 oz
497 g / 17.56 oz
270 g / 9.54 oz
Function
Angle Of View
84.1° Diagonal | 73.7° Horizontal | 53.1° Vertical
94.5° Diagonal | 84.0° Horizontal | 61.9° Vertical
84.1° Diagonal | 73.7° Horizontal | 53.1° Vertical
Aperture
f/2 ~ f/22
f/1.8 ~ f/22
f/1.8 ~ f/22
Autofocus
No
No
Yes
Crop Factor
1.5
Focal Length
16 mm
20 mm
24 mm
Focal Length (35mm Equivalent)
24.0 mm
Focus Type
Internal
Extending front
Image Stabilization
No
No
Yes (5.5 stops)
Weather Resistance
No
Performance
Max Magnification
0.5x
Min Focus Distance
200 mm / 7.87 in
200 mm / 7.87 in
140 mm / 5.51 in
Production
Accessory
Lens hood included
Lens hood included
Lens hood included
Debut
2013-06-13
2016-08-08
2022-07-12
Reviews
Neofiliac score
50%
59%
65%
Pros
- A bit large for an APS-C lens
- Rather affordable
- Optically stabilized
- Compact and lightweight
- 0.5x maximum reproduction
Cons
- Not the best grade of build
- Not the strongest IQ
- Lacks weather sealing
- Not the highest grade of build
- Questionable build quality
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