Celestron Omni 15mm Plossl vs Celestron Omni 40mm Plossl: specs compared
Updated 05 September 2026.
3
specs differ
Celestron Omni 15mm Plossl and Celestron Omni 40mm Plossl differ on 3 specs: focal length, apparent field of view, eye relief.
| Spec | Celestron Omni 15mm Plossl | Celestron Omni 40mm Plossl |
|---|---|---|
| Focal length | 15 mm | 40 mm |
| Apparent field of view | 50 degrees | 40 degrees |
| Barrel size | 1.25 in | 1.25 in |
| Eye relief | 13 mm | 31 mm |
| Optical design | 4-element Plossl | 4-element Plossl |
Questions and answers
How do Celestron Omni 15mm Plossl and Celestron Omni 40mm Plossl compare?
Celestron Omni 15mm Plossl and Celestron Omni 40mm Plossl differ on 3 specs: focal length, apparent field of view, eye relief.