Comparison: Atlas Orion 21mm T2 2x vs Sony FE 600 mm f4 GM OSS
| Atlas Orion 21mm T2 2x | Sony FE 600 mm f4 GM OSS | |
 |  | |
| Brand | Atlas Lens Co. | Sony |
| See Lowest Price | See Lowest Price | |
| Vikt | - | 3040 |
| Atlas Orion 21mm T2 2x | Sony FE 600 mm f4 GM OSS | |
| | |
| Brand | Atlas Lens Co. | Sony |
| See Lowest Price | See Lowest Price | |
| Vikt | - | 3040 |