Comparison: Canon EF 40mm f/2.8 STM vs Sirui 135mm T2.9 1.8x - (Sony E Mount)
| Canon EF 40mm f/2.8 STM | Sirui 135mm T2.9 1.8x - (Sony E Mount) | |
 |  | |
| Brand | Canon | Sirui |
| See Lowest Price | See Lowest Price |
| Canon EF 40mm f/2.8 STM | Sirui 135mm T2.9 1.8x - (Sony E Mount) | |
| | |
| Brand | Canon | Sirui |
| See Lowest Price | See Lowest Price |