File:1sigma env.png
![File:1sigma env.png](https://upload.wikimedia.org/wikipedia/commons/thumb/1/13/1sigma_env.png/800px-1sigma_env.png?20140209214723)
Size of this preview: 800 × 561 pixels. Other resolutions: 320 × 224 pixels | 640 × 449 pixels | 1,024 × 718 pixels | 1,280 × 897 pixels | 2,560 × 1,795 pixels | 3,432 × 2,406 pixels.
Original file (3,432 × 2,406 pixels, file size: 49 KB, MIME type: image/png)