An achromatic cylinder lens is a type of doublet lens consisting of a positive low-index (crown) element and a negative high-index (flint) element cemented together. The two materials are designed to work together to reduce spherical and chromatic aberrations. The additional design freedom provided by using a doublet design allows for further optimization of performance. Therefore, an achromatic lens will have noticeable advantages over a comparable diameter and focal length singlet lens.
| Shape | Rectangle/Round |
| Diameter (mm) | Other on request |
| Diameter Tolerance (mm) | ± 0.1 |
| Effective Focal Length EFL (mm) | Other on request |
| Back Focal Length BFL (mm) | Other on request |
| Focal Length Tolerance (%) | ± 3 |
| Center Thickness CT 1 (mm) | 7 |
| Center Thickness CT 2 (mm) | 2 |
| Center Thickness Tolerance (mm) | ± 0.2 |
| Radius R1 (mm) | Other on request |
| Radius R2 (mm) | Other on request |
| Radius R3 (mm) | -200.14 |
| Surface Quality | 40-20 |
| Wedge Tolerance (arcminutes) | Other on request |
| Tilt Tolerance (mm) | ± 0.1 |
| Substrate | Other on request |
| Coating | MgF2 |
