Voigtlander 21mm F1.8 Ultron
Full-Frame LensProduct Gallery



Product Overview
Voigtlander 21mm F1.8 Ultron is a manual-focus ultra wide-angle prime lens for Leica M-mount. It covers the full-frame image circle. Introduced by Voigtlander in 2012, it has 13 elements in 11 groups.
Manual focus may be limiting to some, but purists will find it much more engaging. There are also fewer things to go wrong on the long run. The entire lens is crafted out of metal, which imparts a level of tactile sense of quality.
The bright maximum aperture for an ultra wide-angle lens is appreciated for night and astro photography. Even though the lens is not stabilized, at this focal range it does not usually matter. In fact, some may be able to get cleaner corners without image stabilization. Those who like sunstars (sun bursts) will be pleased by the lens' even-numbered aperture count, though conversely those who find sunstars distracting may have the opposite feeling.
Ratings
What we found
Neofiliac score 88%
Pros
- Solid all-metal construction
- Very sharp
- Great sunstar
- Quite bright aperture
Cons
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Price Comparison
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Specifications
Construction
Aperture Blades
10 blades
Form Factor
Ultra Wide-Angle Prime Lens
Image Size
Full-Frame
Lens Barrel
Physical aperture ring, Distance scale, DoF scale
Lens Mount
Leica M-mount
Material
Metal barrel, metal mount
Optical Formula | Elements
13 elements
Optical Formula | Groups
11 groups
Optical Formula | Special Glass
Aspherical element groups
Dimensions
Filter Diameter
58 mm / 2.28 in
Size | Diameter
62 mm / 2.44 in
Size | Length
92 mm / 3.62 in
Weight
412 g / 14.56 oz
Function
Angle Of View
91.7° Diagonal | 81.2° Horizontal | 59.5° Vertical
Aperture
f/1.8 ~ f/22
Autofocus
No
Focal Length
21 mm
Performance
Min Focus Distance
500 mm / 19.69 in
Production
Accessory
Lens Hood: Non-detachable hood (supplied)
Debut
2012-09-17
Made In
Japan
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