Comparison: Atlas Orion 21mm T2 2x vs NiSi 15mm F4 Asph
| Atlas Orion 21mm T2 2x | NiSi 15mm F4 Asph | |
 |  | |
| Brand | Atlas Lens Co. | NiSi Cinema |
| See Lowest Price | See Lowest Price | |
| Vikt | - | 470 |
| Atlas Orion 21mm T2 2x | NiSi 15mm F4 Asph | |
| | |
| Brand | Atlas Lens Co. | NiSi Cinema |
| See Lowest Price | See Lowest Price | |
| Vikt | - | 470 |