Comparison: Sirui 50mm T2.9 1.6X Full Frame - (Sony E Mount) vs NiSi 15mm F4 Asph
| Sirui 50mm T2.9 1.6X Full Frame - (Sony E Mount) | NiSi 15mm F4 Asph | |
 |  | |
| Brand | Sirui | NiSi Cinema |
| See Lowest Price | See Lowest Price | |
| Vikt | - | 470 |
| Sirui 50mm T2.9 1.6X Full Frame - (Sony E Mount) | NiSi 15mm F4 Asph | |
| | |
| Brand | Sirui | NiSi Cinema |
| See Lowest Price | See Lowest Price | |
| Vikt | - | 470 |