Compare KamLan 50mm F1.1 II vs Sigma 56mm F1.4 DC DN vs SIGMA 28-70mm F2.8 DG DN
Construction
Aperture Blades
11 blades
9 blades
9 blades
Colors
Black
Form Factor
Short Telephoto Prime Lens
Short Telephoto Prime Lens
Standard Zoom Lens
Image Size
APS-C
APS-C
Full-Frame
Lens Barrel
Physical aperture ring, Distance scale, DoF scale
Lens Mount
Canon EF-M-mount, Fujifilm X-mount, Micro Four Thirds-mount, Sony E-mount
Canon EF-M-mount, Leica L-mount, Micro Four Thirds-mount, Sony E-mount
Leica L-mount, Sony E-mount
Material
Magnesium alloy
Motor
Stepper motor
Stepper motor
Optical Formula | Elements
8 elements
10 elements
16 elements
Optical Formula | Groups
7 groups
6 groups
12 groups
Optical Formula | Special Glass
1 SLD + 2 aspherical elements groups
2 FLD + 2 SLD + 3 aspherical elements, Nano Porous + Super Multi-Layer coating groups
Dimensions
Filter Diameter
62 mm / 2.44 in
55 mm / 2.17 in
67 mm / 2.64 in
Size | Diameter
67 mm / 2.64 in
72 mm / 2.83 in
Size | Length
60 mm / 2.36 in
102 mm / 4.02 in
Weight
600 g / 21.20 oz
281 g / 9.93 oz
470 g / 16.61 oz
Function
Angle Of View
32.2° Diagonal | 27.0° Horizontal | 18.2° Vertical
28.9° Diagonal | 24.2° Horizontal | 16.3° Vertical
75.4° Diagonal | 65.5° Horizontal | 46.4° Vertical (wide) ~ 34.4° Diagonal | 28.8° Horizontal | 19.5° Vertical (tele)
Aperture
f/1.1 ~ f/16
f/1.4 ~ f/16
f/2.8 ~ f/22
Autofocus
No
Yes
Yes
Crop Factor
1.5
1.5
Focal Length
50 mm
56 mm
28 mm ~ 70 mm
Focal Length (35mm Equivalent)
75.0 mm
84.0 mm
Focus Type
Internal
Internal
Internal
Image Stabilization
No
No
No
Weather Resistance
No
Yes
Yes
Zoom Type
External zoom
Performance
Max Magnification
0.25x
0.14x
0.3x
Min Focus Distance
400 mm / 15.75 in
500 mm / 19.69 in
190 mm / 7.48 in
Production
Accessory
Lens hood included
Lens hood included
Debut
2019-06-05
2020-06-18
2021-02-24
Made In
Japan
Japan
Reviews
Neofiliac score
59%
91%
74%
Pros
- Bright maximum aperture
- Smooth rendering
- Good sharpness
- Bright maximum aperture
- Weather-sealed
- Weather-sealed
- Lightweight and compact
- Good image quality
- Fast autofocus
Cons
- Lacks weather sealing
- No EXIF data
- Very light and compact
- External zoom without zoom lock
- Vignetting at 70mm
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