Compare 7Artisans 12mm F2.8 vs 7artisans 55mm F1.4 vs KamLan 50mm F1.1
Construction
Aperture Blades
7 blades
9 blades
11 blades
Colors
Black
Black
Form Factor
Ultra Wide-Angle Prime Lens
Short Telephoto Prime Lens
Short Telephoto 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
Fujifilm X-mount, Micro Four Thirds-mount, Sony E-mount
Material
Aluminum
Aluminum
Optical Formula | Elements
10 elements
6 elements
5 elements
Optical Formula | Groups
8 groups
5 groups
5 groups
Optical Formula | Special Glass
Multi-layer coating groups
Dimensions
Filter Diameter
46 mm / 1.81 in
52 mm / 2.05 in
52 mm / 2.05 in
Size | Diameter
60 mm / 2.4 in
60 mm / 2.36 in
Size | Length
66 mm / 2.60 in
65 mm / 2.60 in
60 mm / 2.36 in
Weight
295 g / 10.42 oz
272 g / 9.61 oz
248 g / 8.76 oz
Function
Angle Of View
100.5° Diagonal | 90.0° Horizontal | 67.4° Vertical
29.4° Diagonal | 24.6° Horizontal | 16.6° Vertical
32.2° Diagonal | 27.0° Horizontal | 18.2° Vertical
Aperture
f/2.8 ~ f/16
f/1.4 ~ f/16
f/1.1 ~ f/16
Autofocus
No
No
No
Crop Factor
1.5
1.5
1.5
Focal Length
12 mm
55 mm
50 mm
Focal Length (35mm Equivalent)
18.0 mm
82.5 mm
75.0 mm
Focus Type
Internal
Internal
Internal
Image Stabilization
No
No
No
Weather Resistance
No
No
No
Performance
Min Focus Distance
200 mm / 7.87 in
420 mm / 16.54 in
500 mm / 19.69 in
Production
Accessory
Lens hood included
Debut
2017-12-11
2021
2017-10-17
Made In
China
Reviews
Neofiliac score
40%
59%
68%
Pros
- Tactile physical controls
- Very affordable
- Bright maximum aperture
- Bright maximum aperture
- Light in the hand
- Smooth rendering
- Well priced
Cons
- Lacks weather sealing
- Not as solid as more premium alternatives
- Not the best optically
- Lacks weather sealing
- Not very solid
- Larger and heavier than Mark I
- Lower maximum magnification than Mark I
- Lacks weather sealing
- Not very sharp
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