Compare Sigma 20mm F1.4 DG HSM vs Canon RF 24mm F1.8 Macro
Construction
Aperture Blades
9 blades, Rounded blades
9 blades, Rounded blades
Colors
Black
Black
Form Factor
Ultra Wide-Angle Prime Lens
Wide-Angle Prime Lens
Image Size
Full-Frame
Full-Frame
Lens Barrel
Distance scale
Lens Mount
Canon EF-mount, Nikon F-mount, Sigma SA-mount, Sony E-mount, Leica L-mount
Canon RF-mount
Motor
Ring-type ultrasonic
Stepper motor
Optical Formula | Elements
15 elements
11 elements
Optical Formula | Groups
11 groups
9 groups
Optical Formula | Special Glass
Two FLD, five SLD elements + Super Multi-Layer 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
52 mm / 2.05 in
Size | Diameter
91 mm / 3.58 in
74 mm / 2.91 in
Size | Length
130 mm / 5.12 in
63 mm / 2.48 in
Weight
950 g / 33.57 oz
270 g / 9.54 oz
Function
Angle Of View
94.5° Diagonal | 84.0° Horizontal | 61.9° Vertical
84.1° Diagonal | 73.7° Horizontal | 53.1° Vertical
Aperture
f/1.4 ~ f/16
f/1.8 ~ f/22
Autofocus
Yes
Yes
Focal Length
20 mm
24 mm
Focus Type
Internal
Extending front
Image Stabilization
No
Yes (5.5 stops)
Weather Resistance
No
Performance
Max Magnification
0.14x
0.5x
Min Focus Distance
300 mm / 11.81 in
140 mm / 5.51 in
Production
Accessory
Lens hood included
Lens hood included
Debut
2015-10-16
2022-07-12
Made In
Japan
Reviews
Neofiliac score
55%
65%
Pros
- High level of resolution
- Bright maximum aperture
- Optically stabilized
- Compact and lightweight
- 0.5x maximum reproduction
Cons
- Large and heavy
- Lacks front filter thread
- Lacks weather sealing
- Questionable build quality
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