Compare Voigtlander 21mm F1.8 Ultron vs Voigtlander Ultron 28mm F2
Variants
Type I
Type II
Construction
Aperture Blades
10 blades
10 blades, straight cut
Form Factor
Ultra Wide-Angle Prime Lens
Manual-focus prime lens for rangefinder cameras
Image Size
Full-Frame
Full-frame
Lens Barrel
Physical aperture ring, Distance scale, DoF scale
Lens Mount
Leica M-mount
M-mount bayonet (VM)
Material
Metal barrel, metal mount
Optical Formula | Elements
13 elements
10 elements
Optical Formula | Groups
11 groups
7 groups
Optical Formula | Special Glass
Aspherical element groups
Dimensions
Filter Diameter
58 mm / 2.28 in
39 mm
Size | Diameter
62 mm / 2.44 in
Size | Length
92 mm / 3.62 in
36 mm
Weight
412 g / 14.56 oz
Function
Angle Of View
91.7° Diagonal | 81.2° Horizontal | 59.5° Vertical
74.51°
Aperture
f/1.8 ~ f/22
f/2 ~ f/22
Autofocus
No
Focal Length
21 mm
28 mm
Performance
Min Focus Distance
500 mm / 19.69 in
0.5 m (Rangefinder coupling ∞ ~ 0.7 m)
Production
Accessory
Lens Hood: Non-detachable hood (supplied)
Lens hood LH-4N or LH-12, optional
Debut
2012-09-17
2021
Made In
Japan
Japan
Reviews
Neofiliac score
88%
Pros
- Solid all-metal construction
- Very sharp
- Great sunstar
- Quite bright aperture
- Amazing build quality
- Very sharp
- Easy to focus
Cons
- Does not work well with thick filter stack
- Vignetting at f/2
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