Compare Samyang 100mm F2.8 ED UMC Macro vs Samyang 20mm F1.8 ED AS UMC vs Panasonic S 18mm F1.8
Construction
Aperture Blades
9 blades
7 blades
9 blades, Circulate aperture desigm
Form Factor
Short Telephoto Prime Lens
Ultra Wide-Angle Prime Lens
Ultra Wide-Angle Prime Lens
Image Size
Full-Frame
Full-Frame
Full-Frame
Lens Barrel
Physical aperture ring, Distance scale, DoF scale
Physical aperture ring, Distance scale
Lens Mount
Canon EF-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
Leica L-mount
Material
Polycarbonate
Motor
Stepper motor
Optical Formula | Elements
15 elements
13 elements
13 elements
Optical Formula | Groups
12 groups
12 groups
12 groups
Optical Formula | Special Glass
1 HRI + 1 ED element, Ultra Multi Coating groups
Two aspherical + 3 ED elements, Ultra Multi Coating groups
3 Aspheric, 1 UED, 3 ED, 1 UHR groups
Dimensions
Filter Diameter
67 mm / 2.64 in
77 mm / 3.03 in
67 mm / 2.64 in
Size | Diameter
73 mm / 2.87 in
83 mm / 3.27 in
74 mm / 2.91 in
Size | Length
123 mm / 4.84 in
88 mm / 3.46 in
82 mm / 3.23 in
Weight
720 g / 25.44 oz
497 g / 17.56 oz
340 g / 12.01 oz
Function
Angle Of View
24.4° Diagonal | 20.4° Horizontal | 13.7° Vertical
94.5° Diagonal | 84.0° Horizontal | 61.9° Vertical
100.5° Diagonal | 90.0° Horizontal | 67.4° Vertical
Aperture
f/2.8 ~ f/32
f/1.8 ~ f/22
f/1.8 ~ f/16
Autofocus
No
No
Yes
Focal Length
100 mm
20 mm
18 mm
Focus Type
Internal
Internal
Internal
Image Stabilization
No
No
No
Weather Resistance
No
No
Performance
Max Magnification
1x
0.2x
Min Focus Distance
310 mm / 12.20 in
200 mm / 7.87 in
180 mm / 7.09 in
Production
Accessory
Lens hood included
Lens hood included
Lens hood included
Debut
2015-04-01
2016-08-08
2022-09-07
Reviews
Neofiliac score
59%
59%
68%
Pros
- 1:1 reproduction
- Clear focusing scale
- Rather affordable
- Rather lightweight
- Decent image quality
Cons
- Lacks weather sealing
- Not Samyang's strongest build
- Lacks weather sealing
- Not the highest grade of build
- Not very competitive
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