telescopecomparison · 2-way
Celestron RASA 14 vs Orion EON 130mm ED Triplet
Celestron
RASA 14
Best suited for intermediate imagers building a versatile kit running a permanent observatory setup.
Orion
EON 130mm ED Triplet
Best suited for intermediate imagers building a versatile kit running a backyard imaging setup.
Key differences
-13% focal length
+174% aperture
Faster by 4.8 f-stops
Specifications
| Specification | Celestron RASA 14 | Orion EON 130mm ED Triplet |
|---|---|---|
| Optics | ||
| Type | astrograph | refractor |
| Optical design | Rowe-Ackermann Schmidt Astrograph | Apo triplet FPL-53 |
| Aperture | 356mm | 130mm |
| Focal length | 790mm | 910mm |
| Native f/ratio | f/2.2 | f/7.0 |
| Image circle | 52mm | 44mm |
| Full-frame support | Yes | Yes |
| Physical | ||
| Weight | 30.0kg | 7.7kg |
Advantages of Celestron RASA 14
- Wider field — 790mm vs 910mm focal length
- 174% more light-gathering aperture
- Faster optics at f/2.22 vs f/7
- Larger image circle (52mm) — supports bigger sensors
Advantages of Orion EON 130mm ED Triplet
- Tighter framing — 910mm vs 790mm focal length
- Lighter (7.7kg vs 30kg) — easier to travel with
Best for — Celestron RASA 14
- Medium-sized galaxies and planetary nebulae
- Fast imaging — short exposures per sub
- Faint-object imaging under dark skies
- 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
Celestron RASA 14 — typical FOV & scale
- With Full-frame (36×24mm, 3.76µm)FOV: 2.61° × 1.74°Scale: 0.98"/px
- With APS-C (23.5×15.7mm, 3.76µm)FOV: 1.70° × 1.14°Scale: 0.98"/px
- With IMX533 square (11.3×11.3mm, 3.76µm)FOV: 0.82° × 0.82°Scale: 0.98"/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
Celestron RASA 14 — recommended user
Best suited for intermediate imagers building a versatile kit running a permanent observatory setup.
Orion EON 130mm ED Triplet — recommended user
Best suited for intermediate imagers building a versatile kit running a backyard imaging setup.