Compare 7Artisans 12mm F2.8 vs KamLan 28mm F1.4 vs 7Artisans 25mm F1.8
Construction
Aperture Blades
7 blades
11 blades
7 blades
Colors
Black
Black
Form Factor
Ultra Wide-Angle Prime Lens
Normal Prime Lens
Normal Prime Lens
Image Size
APS-C
APS-C
APS-C
Lens Barrel
Physical aperture ring, Distance scale, DoF scale
Physical aperture ring, Distance scale, DoF scale
Physical aperture ring, Distance scale, DoF scale
Lens Mount
Canon EF-M-mount, Fujifilm X-mount, Sony E-mount, MFT-mount
Canon EF-M-mount, Fujifilm X-mount, Micro Four Thirds-mount, Sony E-mount
Canon EF-M-mount, Fujifilm X-mount, Micro Four Thirds-mount, Sony E-mount
Material
Aluminum
Aluminum
Optical Formula | Elements
10 elements
8 elements
7 elements
Optical Formula | Groups
8 groups
7 groups
5 groups
Optical Formula | Special Glass
Multi-layer coating groups
6 HRI elements groups
Dimensions
Filter Diameter
46 mm / 1.81 in
52 mm / 2.05 in
46 mm / 1.81 in
Size | Diameter
55 mm / 2.17 in
51 mm / 2.01 in
Size | Length
66 mm / 2.60 in
65 mm / 2.56 in
32 mm / 1.26 in
Weight
295 g / 10.42 oz
384 g / 13.57 oz
143 g / 5.05 oz
Function
Angle Of View
100.5° Diagonal | 90.0° Horizontal | 67.4° Vertical
54.5° Diagonal | 46.4° Horizontal | 31.9° Vertical
60.0° Diagonal | 51.3° Horizontal | 35.5° Vertical
Aperture
f/2.8 ~ f/16
f/1.4 ~ f/16
f/1.8 ~ f/22
Autofocus
No
No
No
Crop Factor
1.5
1.5
1.5
Focal Length
12 mm
28 mm
25 mm
Focal Length (35mm Equivalent)
18.0 mm
42.0 mm
37.5 mm
Focus Type
Internal
Internal
Internal
Image Stabilization
No
No
No
Weather Resistance
No
No
Performance
Max Magnification
0.15x
Min Focus Distance
200 mm / 7.87 in
250 mm / 9.84 in
180 mm / 7.09 in
Production
Accessory
Lens hood included
Debut
2017-12-11
2018-06-01
2017-06-28
Made In
China
Reviews
Neofiliac score
40%
59%
59%
Pros
- Tactile physical controls
- Very affordable
- Bright maximum aperture
- Smooth rendering
- Rather sharp for what it is
- Short barrel
- Light in the hand
- Appears well-built
Cons
- Lacks weather sealing
- Not as solid as more premium alternatives
- Not the best optically
- Not the highest build grade
- Lacks weather sealing
- Not the strongest in optical performance
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