The Steinheil triplets are made of a low index crown element cemented in between two identical meniscus flint elements. Specially designed for 1:1 conjugation, they perform well for conjugate ratios up to 5.
These lenses make good relay optics for both on- and off-axis application and are often used as eyepieces.
| Ross Optical Industries | |
|---|---|
| Product Category | Optical Lenses |
| Product Number | L-AST004 |
| Product Name | Steinheil Triplets |
| Lens Type | Achromats; Meniscus; Spherical Lens |
| Lens Application | Infrared (optional feature); Visible; Ultraviolet (optional feature) |
| Focal Length | 20 mm (0.7874 inch) |
| Center Thickness | 9 mm (0.3543 inch) |
| Edge Thickness | 6.3 mm (0.2480 inch) |
