OTA · 2013–
Sky-Watcher Esprit 100ED
Key specifications
| Aperture | 100 mm |
|---|---|
| Focal length | 550 mm |
| Focal ratio | f/5.5 |
| Optical design | Triplet APO |
All specifications
| Dovetail | Losmandy |
|---|
About
100mm f/5.5 ED triplet super-APO refractor, 550mm focal length, with an air-spaced three-element objective (one ED element) and a matched 2-element flattener. Popular wide-field deep-sky astrograph; dual-speed Helinear-track rotatable focuser.