telescopecomparison · 2-way
Celestron EdgeHD 14 vs Celestron C8 SCT
Celestron
EdgeHD 14
Best suited for experienced imagers chasing detail running a permanent observatory setup.
Key differences
+92% focal length
+75% aperture
Slower by 1.0 f-stops
Specifications
| Specification | Celestron EdgeHD 14 | Celestron C8 SCT |
|---|---|---|
| Optics | ||
| Type | sct | sct |
| Optical design | Aplanatic SCT | Schmidt-Cassegrain |
| Aperture | 356mm | 203mm |
| Focal length | 3910mm | 2032mm |
| Native f/ratio | f/11.0 | f/10.0 |
| Image circle | 42mm | — |
| Full-frame support | Yes | No |
| Physical | ||
| Weight | 20.0kg | 5.7kg |
Advantages of Celestron EdgeHD 14
- Tighter framing — 3910mm vs 2032mm focal length
- 75% more light-gathering aperture
- Larger image circle (42mm) — supports bigger sensors
Advantages of Celestron C8 SCT
- Wider field — 2032mm vs 3910mm focal length
- Faster optics at f/10 vs f/11
- Lighter (5.7kg vs 20kg) — easier to travel with
Best for — Celestron EdgeHD 14
- Small galaxies, planetary nebulae, lunar & planetary detail
- High-resolution long-exposure work
- Faint-object imaging under dark skies
- Full-frame astro cameras and DSLRs
Best for — Celestron C8 SCT
- Small galaxies, planetary nebulae, lunar & planetary detail
- High-resolution long-exposure work
- Faint-object imaging under dark skies
Celestron EdgeHD 14 — typical FOV & scale
- With Full-frame (36×24mm, 3.76µm)FOV: 0.53° × 0.35°Scale: 0.20"/px
- With APS-C (23.5×15.7mm, 3.76µm)FOV: 0.34° × 0.23°Scale: 0.20"/px
- With IMX533 square (11.3×11.3mm, 3.76µm)FOV: 0.17° × 0.17°Scale: 0.20"/px
Celestron C8 SCT — typical FOV & scale
- With Full-frame (36×24mm, 3.76µm)FOV: 1.02° × 0.68°Scale: 0.38"/px
- With APS-C (23.5×15.7mm, 3.76µm)FOV: 0.66° × 0.44°Scale: 0.38"/px
- With IMX533 square (11.3×11.3mm, 3.76µm)FOV: 0.32° × 0.32°Scale: 0.38"/px
Celestron EdgeHD 14 — recommended user
Best suited for experienced imagers chasing detail running a permanent observatory setup.
Celestron C8 SCT — recommended user
Best suited for experienced imagers chasing detail running a backyard imaging setup.