telescope
Sky-Watcher
Esprit 150ED
150mm Triplet APO · 1050mm f/7.0
150mm ED triplet with 3-element flattener; full-frame capable.
Best for
- Medium-sized galaxies and planetary nebulae
- Full-frame astro cameras and DSLRs
Specifications
| Optics | |
| Type | Refractor |
| Optical design | Triplet APO |
| Aperture | 150mm |
| Focal length | 1050mm |
| Native f/ratio | f/7.0 |
| Image circle | 44mm |
| Full-frame support | Yes |
| Physical | |
| Weight | 17.0kg |
Typical FOV & image scale
With Full-frame (36×24mm, 3.76µm)
FOV 1.96° × 1.31°
Scale 0.74″/px
With APS-C (23.5×15.7mm, 3.76µm)
FOV 1.28° × 0.86°
Scale 0.74″/px
With IMX533 square (11.3×11.3mm, 3.76µm)
FOV 0.62° × 0.62°
Scale 0.74″/px
Typical targets
- Messier M81 — Bode's GalaxyGalaxy · 26.9′
- Messier M23 — Open Cluster M23Open Cluster · 27′
- Messier M46 — Open Cluster M46Open Cluster · 27′
- NGC NGC 253 — Sculptor GalaxyGalaxy · 27′
- Messier M4 — Globular Cluster M4Globular Cluster · 26′
- NGC NGC 5128 — Centaurus AGalaxy · 26′
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Source: www.skywatcherusa.com