Compare Sigma 14mm F1.8 DG HSM vs Sigma 20mm F1.4 DG HSM vs Leica TL 23mm F2
Construction
Aperture Blades
9 blades
9 blades, Rounded blades
Colors
Black
Black
Form Factor
Ultra Wide-Angle Prime Lens
Ultra Wide-Angle Prime Lens
Wide-Angle Prime Lens
Image Size
Full-Frame
Full-Frame
APS-C
Lens Barrel
Distance scale
Distance scale
Lens Mount
Canon EF-mount, Nikon F-mount, Sigma SA-mount, Sony E-mount, Leica L-mount
Canon EF-mount, Nikon F-mount, Sigma SA-mount, Sony E-mount, Leica L-mount
Leica L-mount
Motor
Ring-type ultrasonic
Ring-type ultrasonic
Stepper motor
Optical Formula | Elements
16 elements
15 elements
9 elements
Optical Formula | Groups
11 groups
11 groups
6 groups
Optical Formula | Special Glass
Three FLD and four SLD elements groups
Two FLD, five SLD elements + Super Multi-Layer coating groups
2 Aspheric surfaces groups
Dimensions
Filter Diameter
52 mm / 2.05 in
Size | Diameter
95 mm / 3.74 in
91 mm / 3.58 in
63 mm / 2.48 in
Size | Length
126 mm / 4.96 in
130 mm / 5.12 in
37 mm / 1.46 in
Weight
1170 g / 41.34 oz
950 g / 33.57 oz
154 g / 5.44 oz
Function
Angle Of View
114.2° Diagonal | 104.3° Horizontal | 81.2° Vertical
94.5° Diagonal | 84.0° Horizontal | 61.9° Vertical
64.2° Diagonal | 55.1° Horizontal | 38.4° Vertical
Aperture
f/1.8 ~ f/16
f/1.4 ~ f/16
f/2 ~ f/16
Autofocus
Yes
Yes
Yes
Crop Factor
1.5
Focal Length
14 mm
20 mm
23 mm
Focal Length (35mm Equivalent)
34.5 mm
Focus Type
Internal
Internal
Internal
Image Stabilization
No
No
No
Weather Resistance
No
Performance
Max Magnification
0.1x
0.14x
Min Focus Distance
270 mm / 10.63 in
300 mm / 11.81 in
300 mm / 11.81 in
Production
Accessory
Lens hood included
Lens hood included
Lens hood included
Debut
2017-02-21
2015-10-16
2014-04-24
Made In
Japan
Japan
Germany
Reviews
Neofiliac score
55%
55%
86%
Pros
- Excellent image quality
- Very well built
- High level of resolution
- Bright maximum aperture
- Compact and lightweight
- Beautiful construction
Cons
- Notable comatic aberration
- Very large and heavy
- Lacks front filter thread
- Large and heavy
- Lacks front filter thread
- Lacks weather sealing
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