telescopecomparison · 2-way
Celestron C8 SCT vs Celestron EdgeHD 11
Celestron
EdgeHD 11
Best suited for experienced imagers chasing detail running a permanent observatory setup.
Key differences
-27% focal length
-27% aperture
Specifications
| Specification | Celestron C8 SCT | Celestron EdgeHD 11 |
|---|---|---|
| Optics | ||
| Type | sct | sct |
| Optical design | Schmidt-Cassegrain | Aplanatic SCT |
| Aperture | 203mm | 279mm |
| Focal length | 2032mm | 2800mm |
| Native f/ratio | f/10.0 | f/10.0 |
| Image circle | — | 42mm |
| Full-frame support | No | Yes |
| Physical | ||
| Weight | 5.7kg | 12.7kg |
Advantages of Celestron C8 SCT
- Wider field — 2032mm vs 2800mm focal length
- Lighter (5.7kg vs 12.7kg) — easier to travel with
Advantages of Celestron EdgeHD 11
- Tighter framing — 2800mm vs 2032mm focal length
- 37% more light-gathering aperture
- Larger image circle (42mm) — supports bigger sensors
Best for — Celestron C8 SCT
- Small galaxies, planetary nebulae, lunar & planetary detail
- High-resolution long-exposure work
- Faint-object imaging under dark skies
Best for — Celestron EdgeHD 11
- Small galaxies, planetary nebulae, lunar & planetary detail
- High-resolution long-exposure work
- Faint-object imaging under dark skies
- Full-frame astro cameras and DSLRs
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 11 — typical FOV & scale
- With Full-frame (36×24mm, 3.76µm)FOV: 0.74° × 0.49°Scale: 0.28"/px
- With APS-C (23.5×15.7mm, 3.76µm)FOV: 0.48° × 0.32°Scale: 0.28"/px
- With IMX533 square (11.3×11.3mm, 3.76µm)FOV: 0.23° × 0.23°Scale: 0.28"/px
Celestron C8 SCT — recommended user
Best suited for experienced imagers chasing detail running a backyard imaging setup.
Celestron EdgeHD 11 — recommended user
Best suited for experienced imagers chasing detail running a permanent observatory setup.