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| Manufacturer | Sigma | Olympus | Panasonic | Voigtlander |
|---|---|---|---|---|
| Model | 19 mm f/2.8 EX DN | M.Zuiko Digital 17 mm f/2.8 | G 20 mm f/1.7 ASPH. | Nokton 17.5 mm f/0.95 Aspherical |
| Lenst style | Wide angle | Wide angle | Wide angle | Wide angle |
| Focal length | 19 mm | 17 mm | 20 mm | 17.5 mm |
| Maximum aperture | f/2.8 | f/2.8 | f/1.7 | f/0.95 |
| Angle of view | 73.5 o | 65 o | 57 o | 64.6 o |
| Closest focusing distance | 0.2 m | 0.2 m | 0.2 m | 0.15 m |
| Maximum magnification | 1:7.4 | 1:9 | 1:7.5 | 1:4 |
| Minimum aperture | 22 | 22 | 16 | 16 |
| Diaphragm blades | 7 | 5 | 7 | 10 |
| Auto focus type | AF | AF | AF | MF |
| Lens Construction | 8 elements / 6 group | 6 elements / 4 group | 7 elements / 5 group | 13 elements / 9 group |
| Filter diameter | 46 mm | 37 mm | 46 mm | 58 mm |
| Macro Yes/No | No | No | No | No |
| Stabilization | No | No | No | No |
| Available mounts | Micro Four Thirds Sony E |
Micro Four Thirds | Micro Four Thirds | Micro Four Thirds |
| Dimensions | 60.6 x 45.7 mm | 57 x 22 mm | 63 x 25.5 mm | 63.4 x 80 mm |
| Weight | 140 g | 71 g | 100 g | 540 g |
| Additional information | Three glass mold aspherical lenses
Super Multi-Layer Coating 3 aspherical elements Micro 4/3 FOV is 59.3 deg |
one aspherical lens | 2 aspherical elements | Announced: 07.02.2012 |
| Score [max 5.00] | No score | |||
| Our Review |
LensTip.com
