Compare Samyang 20mm F1.8 ED AS UMC vs Canon EF 24-105mm F3.5-5.6 vs Canon EF 24-105mm F4L IS II
Construction
Aperture Blades
7 blades
7 blades
10 blades
Colors
Black
Black
Form Factor
Ultra Wide-Angle Prime Lens
Standard Zoom Lens
Standard Zoom Lens
Image Size
Full-Frame
Full-Frame
Full-Frame
Lens Barrel
Physical aperture ring, Distance scale
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
Canon EF-mount
Motor
Stepper motor
Ring-type ultrasonic
Optical Formula | Elements
13 elements
17 elements
17 elements
Optical Formula | Groups
12 groups
13 groups
12 groups
Optical Formula | Special Glass
Two aspherical + 3 ED elements, Ultra Multi Coating groups
Fluorine and Air Sphere Coatings groups
Dimensions
Filter Diameter
77 mm / 3.03 in
77 mm / 3.03 in
77 mm / 3.03 in
Size | Diameter
83 mm / 3.27 in
83 mm / 3.27 in
84 mm / 3.31 in
Size | Length
88 mm / 3.46 in
104 mm / 4.09 in
118 mm / 4.65 in
Weight
497 g / 17.56 oz
525 g / 18.55 oz
795 g / 28.09 oz
Function
Angle Of View
94.5° Diagonal | 84.0° Horizontal | 61.9° Vertical
84.1° Diagonal | 73.7° Horizontal | 53.1° Vertical (wide) ~ 23.3° Diagonal | 19.5° Horizontal | 13.0° Vertical (tele)
84.1° Diagonal | 73.7° Horizontal | 53.1° Vertical (wide) ~ 23.3° Diagonal | 19.5° Horizontal | 13.0° Vertical (tele)
Aperture
f/1.8 ~ f/22
f/3.5–5.6 ~ f/22–32
f/4 ~ f/22
Autofocus
No
Yes
Yes
Focal Length
20 mm
24 mm ~ 105 mm
24 mm ~ 105 mm
Focus Type
Internal
Extending front
Internal
Image Stabilization
No
Yes
Yes
Weather Resistance
No
No
Yes
Zoom Type
External zoom
External zoom
Performance
Max Magnification
0.3x
0.24x
Min Focus Distance
200 mm / 7.87 in
400 mm / 15.75 in
450 mm / 17.72 in
Production
Accessory
Lens hood included
Lens Hood: EW-83M (sold separately), LP1219 lens pouch
Lens Hood: EW-83M (supplied)
Debut
2016-08-08
2014-09-15
2016-08-25
Reviews
Neofiliac score
59%
52%
71%
Pros
- Rather affordable
- Optically stabilized
- Useful zoom range
- Optically stabilized
- Weather-sealed
- Good center sharpness
Cons
- Lacks weather sealing
- Not the highest grade of build
- External zoom without zoom lock
- Lens hood not included
- Lacks weather sealing
- Not the highest build grade from Canon
- Dark maximum aperture
- External zoom without zoom lock
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