Comparison: Lensbaby Spark vs Tamron 70-180mm F2.8 Di III VXD
| Lensbaby Spark | Tamron 70-180mm F2.8 Di III VXD | |
 |  | |
| Brand | Lensbaby | Tamron |
| See Lowest Price | See Lowest Price | |
| Vikt | - | 815 |
| Lensbaby Spark | Tamron 70-180mm F2.8 Di III VXD | |
| | |
| Brand | Lensbaby | Tamron |
| See Lowest Price | See Lowest Price | |
| Vikt | - | 815 |