Compare Samyang 10mm F2.8 ED AS NCS CS vs Leica Summicron-M 28mm F2 vs Leica TL 23mm F2
Construction
Aperture Blades
6 blades, Manual aperture setting via lens ring
10 blades, with clickstops (including half values), manual diaphragm
Form Factor
Ultra Wide-Angle Prime Lens
Wide-Angle Prime Lens
Wide-Angle Prime Lens
Image Size
APS-C
Full-Frame
APS-C
Lens Barrel
Physical aperture ring, Distance scale, DoF scale
Physical aperture ring, Distance scale, DoF scale
Lens Mount
Canon EF-M-mount, Canon EF-mount, Micro Four Thirds-mount, Fujifilm X-mount, Micro Four Thirds-mount, Nikon F-mount, Pentax K-mount, Samsung NX-mount, Sony A-mount, Sony E-mount
Leica M-mount
Leica L-mount
Material
metal barrel, metal mount
Motor
Stepper motor
Optical Formula | Elements
14 elements
9 elements
9 elements
Optical Formula | Groups
10 groups
6 groups
6 groups
Optical Formula | Special Glass
2 aspherical elements, 1 ED glass element groups
1 aspherical element groups
2 Aspheric surfaces groups
Dimensions
Filter Diameter
46 mm / 1.81 in
52 mm / 2.05 in
Size | Diameter
86 mm / 3.39 in
53 mm / 2.09 in
63 mm / 2.48 in
Size | Length
77 mm / 3.03 in
41 mm / 1.61 in
37 mm / 1.46 in
Weight
580 g / 20.49 oz
270 g / 9.54 oz
154 g / 5.44 oz
Function
Angle Of View
110.6° Diagonal | 100.4° Horizontal | 77.3° Vertical
75.4° Diagonal | 65.5° Horizontal | 46.4° Vertical
64.2° Diagonal | 55.1° Horizontal | 38.4° Vertical
Aperture
f/2.8 ~ f/22
f/2 ~ f/16
f/2 ~ f/16
Autofocus
No
No
Yes
Crop Factor
1.5
1.5
Focal Length
10 mm
28 mm
23 mm
Focal Length (35mm Equivalent)
15.0 mm
34.5 mm
Focus Type
Internal
Image Stabilization
No
No
No
Performance
Max Magnification
0.045x
Min Focus Distance
250 mm / 9.84 in
700 mm / 27.56 in
300 mm / 11.81 in
Production
Accessory
Lens Hood: Integrated hood (supplied)
Lens hood included
Lens hood included
Debut
2013-12-06
2014-04-24
Made In
Germany
Germany
Reviews
Neofiliac score
40%
86%
86%
Pros
- One of the widest rectilinear lens for APS-C
- Reasonable IQ
- Bright f/2.8 aperture
- Very lightweight and compact
- Beautiful, solid construction
- Very sharp
- Versatile focal length
- Compact and lightweight
- Beautiful construction
Cons
- Lacks front filter thread
- Low maximum magnification
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