Compare Zeiss Biogon T* 2.8/21 ZM vs Voigtlander 21mm F1.8 Ultron vs Voigtlander 35mm Ultron
Construction
Aperture Blades
10 blades
10, Straight
Colors
Silver or black
Black, Silver
Form Factor
Ultra Wide-Angle Prime Lens
Ultra Wide-Angle Prime Lens
Image Size
Full-Frame
Full-Frame
Full-frame
Lens Barrel
Physical aperture ring, Distance scale, DoF scale
Physical aperture ring, Distance scale, DoF scale
Lens Mount
Leica M-mount
Leica M-mount
M-mount (VM)
Material
metal barrel, metal mount
Metal barrel, metal mount
Optical Formula | Elements
9 elements
13 elements
8 elements
Optical Formula | Groups
7 groups
11 groups
5 groups
Optical Formula | Special Glass
Aspherical element groups
Dimensions
Filter Diameter
46 mm / 1.81 in
58 mm / 2.28 in
39 mm
Size | Diameter
53 mm / 2.09 in
62 mm / 2.44 in
52 mm
Size | Length
75 mm / 2.95 in
92 mm / 3.62 in
28.1 mm
Weight
280 g / 9.89 oz
412 g / 14.56 oz
210 g
Function
Angle Of View
91.7° Diagonal | 81.2° Horizontal | 59.5° Vertical
91.7° Diagonal | 81.2° Horizontal | 59.5° Vertical
62.5°
Aperture
f/2.8 ~ f/22
f/1.8 ~ f/22
F/2 - f/16
Autofocus
No
No
Focal Length
21 mm
21 mm
35 mm
Image Stabilization
No
Performance
Max Magnification
0.048
Min Focus Distance
500 mm / 19.69 in
500 mm / 19.69 in
0.58m (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-Q1
Made In
Japan
Japan
Reviews
Neofiliac score
78%
88%
Pros
- Great build quality
- Good image quality
- Solid all-metal construction
- Very sharp
- Great sunstar
- Quite bright aperture
Cons
- Low maximum magnification
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