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Lenses comparison
Manufacturer
Nikon Nikkor
Nikon Nikkor
Leica
Sigma
Voigtlander
Model
AF-S 20 mm f/1.8G ED
AF 20 mm f/2.8D
Summilux-M 21 mm f/1.4 ASPH.
20 mm f/1.8 EX DG Aspherical RF
Ultron 21 mm f/1.8
Lenst style
Wide angle
Wide angle
Wide angle
Wide angle
Wide angle
Focal length
20 mm
20 mm
21 mm
20 mm
21 mm
Maximum aperture
f/1.8
f/2.8
f/1.4
f/1.8
f/1.8
Angle of view
94.5
o
94
o
92
o
94.5
o
91.7
o
Closest focusing distance
0.2 m
0.25 m
0.7 m
0.2 m
0.5 m
Maximum magnification
1:4.35
8.3
1:29
1:4
1:7.7
Minimum aperture
16
22
16
22
22
Diaphragm blades
7
7
0
9
10
Auto focus type
AF SWM
AF
manual
AF
MF
Lens Construction
13 elements / 11 group
12 elements / 9 group
10 elements / 8 group
13 elements / 11 group
13 elements / 11 group
Filter diameter
77 mm
62 mm
82 mm
82 mm
58 mm
Macro Yes/No
No
No
No
No
No
Stabilization
No
No
No
No
No
Available mounts
Nikon F
Nikon F
Leica M / VM-Mount
Canon EF
Nikon F
Sony A / Minolta
Sigma
Pentax K
Leica M / VM-Mount
Dimensions
81 x 83 mm
42.5 x 69 mm
70 x 77 mm
88.5 x 87 mm
78.4 x 69 mm
Weight
355 g
270 g
580 g
520 g
412 g
Additional information
Anounced: Sep 12, 2014
2 ED and 2 aspherical lenses.
Marketed 1994
Announced: September 2012
Score [max 5.00]
4.33 (6)
4.60 (10)
No score
3.82 (11)
No score
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