telescopecomparison · 2-way
Sky-Watcher Esprit 120ED vs Orion EON 130mm ED Triplet
Sky-Watcher
Esprit 120ED
Best suited for intermediate imagers building a versatile kit running a backyard imaging setup.
Orion
EON 130mm ED Triplet
Best suited for intermediate imagers building a versatile kit running a backyard imaging setup.
Key differences
-8% focal length
-8% aperture
Specifications
| Specification | Sky-Watcher Esprit 120ED | Orion EON 130mm ED Triplet |
|---|---|---|
| Optics | ||
| Type | Refractor | refractor |
| Optical design | Triplet APO | Apo triplet FPL-53 |
| Aperture | 120mm | 130mm |
| Focal length | 840mm | 910mm |
| Native f/ratio | f/7.0 | f/7.0 |
| Image circle | 44mm | 44mm |
| Full-frame support | Yes | Yes |
| Physical | ||
| Weight | 11.5kg | 7.7kg |
Advantages of Sky-Watcher Esprit 120ED
Closely matched on the compared specs.
Advantages of Orion EON 130mm ED Triplet
- Lighter (7.7kg vs 11.5kg) — easier to travel with
Best for — Sky-Watcher Esprit 120ED
- Medium-sized galaxies and planetary nebulae
- Full-frame astro cameras and DSLRs
Best for — Orion EON 130mm ED Triplet
- Medium-sized galaxies and planetary nebulae
- Full-frame astro cameras and DSLRs
Sky-Watcher Esprit 120ED — typical FOV & scale
- With Full-frame (36×24mm, 3.76µm)FOV: 2.46° × 1.64°Scale: 0.92"/px
- With APS-C (23.5×15.7mm, 3.76µm)FOV: 1.60° × 1.07°Scale: 0.92"/px
- With IMX533 square (11.3×11.3mm, 3.76µm)FOV: 0.77° × 0.77°Scale: 0.92"/px
Orion EON 130mm ED Triplet — typical FOV & scale
- With Full-frame (36×24mm, 3.76µm)FOV: 2.27° × 1.51°Scale: 0.85"/px
- With APS-C (23.5×15.7mm, 3.76µm)FOV: 1.48° × 0.99°Scale: 0.85"/px
- With IMX533 square (11.3×11.3mm, 3.76µm)FOV: 0.71° × 0.71°Scale: 0.85"/px
Sky-Watcher Esprit 120ED — recommended user
Best suited for intermediate imagers building a versatile kit running a backyard imaging setup.
Orion EON 130mm ED Triplet — recommended user
Best suited for intermediate imagers building a versatile kit running a backyard imaging setup.
