Tele Vue 20mm Plossl vs Tele Vue 3.5mm Delos: specs compared
Updated 05 September 2026.
4
specs differ
Tele Vue 20mm Plossl and Tele Vue 3.5mm Delos differ on 4 specs: focal length, apparent field of view, optical design, eye relief.
| Spec | Tele Vue 20mm Plossl | Tele Vue 3.5mm Delos |
|---|---|---|
| Focal length | 20 mm | 3.5 mm |
| Apparent field of view | 50 degrees | 72 degrees |
| Barrel size | 1.25 in | 1.25 in |
| Optical design | 4-element Plossl | Delos |
| Eye relief | 20 mm |
Questions and answers
How do Tele Vue 20mm Plossl and Tele Vue 3.5mm Delos compare?
Tele Vue 20mm Plossl and Tele Vue 3.5mm Delos differ on 4 specs: focal length, apparent field of view, optical design, eye relief.