Comparison: Lensbaby Spark vs Sigma 18-35/1,8 DC HSM Art (Canon)
| Lensbaby Spark | Sigma 18-35/1,8 DC HSM Art (Canon) | |
 |  | |
| Brand | Lensbaby | Sigma |
| See Lowest Price | See Lowest Price |
| Lensbaby Spark | Sigma 18-35/1,8 DC HSM Art (Canon) | |
| | |
| Brand | Lensbaby | Sigma |
| See Lowest Price | See Lowest Price |