Comparison: Lensbaby Spark vs Sigma 135mm F1.8 DG HSM - Sony
| Lensbaby Spark | Sigma 135mm F1.8 DG HSM - Sony | |
 |  | |
| Brand | Lensbaby | Sigma |
| See Lowest Price | See Lowest Price | |
| Vikt | - | 1130 |
| Lensbaby Spark | Sigma 135mm F1.8 DG HSM - Sony | |
| | |
| Brand | Lensbaby | Sigma |
| See Lowest Price | See Lowest Price | |
| Vikt | - | 1130 |