Compare Samyang 35mm F1.4 AS UMC vs Samyang 20mm F1.8 ED AS UMC vs Pentax 04 Toy Lens Wide
Construction
Aperture Blades
7 blades
Form Factor
Wide-Angle Prime Lens
Ultra Wide-Angle Prime Lens
Wide-Angle Prime Lens
Image Size
Full-Frame
Full-Frame
1/1.7"
Lens Barrel
Physical aperture ring, Distance scale, DoF scale
Physical aperture ring, Distance scale
Distance scale
Lens Mount
Canon EF-mount, Nikon F-mount, Micro Four Thirds-mount, Pentax K-mount, Sony A-mount, Sony E-mount, Samsung NX-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
Pentax Q-mount
Material
Plastic mount
Optical Formula | Elements
12 elements
13 elements
4 elements
Optical Formula | Groups
10 groups
12 groups
3 groups
Optical Formula | Special Glass
2 high-refraction glass elements1 aspherical element groups
Two aspherical + 3 ED elements, Ultra Multi Coating groups
Dimensions
Filter Diameter
77 mm / 3.03 in
77 mm / 3.03 in
Size | Diameter
63 mm / 2.48 in
83 mm / 3.27 in
41 mm / 1.61 in
Size | Length
112 mm / 4.41 in
88 mm / 3.46 in
25 mm / 0.98 in
Weight
660 g / 23.32 oz
497 g / 17.56 oz
21 g / 0.74 oz
Function
Angle Of View
63.5° Diagonal | 54.4° Horizontal | 37.8° Vertical
94.5° Diagonal | 84.0° Horizontal | 61.9° Vertical
73.5° Diagonal | 63.7° Horizontal | 45.0° Vertical
Aperture
f/1.4 ~ f/22
f/1.8 ~ f/22
f/7.1
Autofocus
No
No
No
Crop Factor
4.6
Focal Length
35 mm
20 mm
6.3 mm
Focal Length (35mm Equivalent)
29.0 mm
Focus Type
Internal
Image Stabilization
No
No
Weather Resistance
No
Performance
Max Magnification
0.15x
Min Focus Distance
300 mm / 11.81 in
200 mm / 7.87 in
70 mm / 2.76 in
Production
Accessory
Lens hood included
Debut
2010-09-16
2016-08-08
2011-06-23
Reviews
Neofiliac score
68%
59%
40%
Pros
- Bright maximum aperture
- Good level of resolution
- Rather affordable
- Extremely light and compact
Cons
- Quite large and heavy
- Lacks weather sealing
- Not the highest grade of build
- Dark and fixed f/7.1 aperture
- Not a serious lens
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