Comparison: Lensbaby Spark vs Sigma 135mm F1.8 DG HSM Art - Canon
| Lensbaby Spark | Sigma 135mm F1.8 DG HSM Art - Canon | |
 |  | |
| Brand | Lensbaby | Sigma |
| See Lowest Price | See Lowest Price |
| Lensbaby Spark | Sigma 135mm F1.8 DG HSM Art - Canon | |
| | |
| Brand | Lensbaby | Sigma |
| See Lowest Price | See Lowest Price |