telescopecomparison · 2-way
Celestron C6 SCT vs Celestron EdgeHD 11
Celestron
EdgeHD 11
Best suited for experienced imagers chasing detail running a permanent observatory setup.
Key differences
-46% focal length
-46% aperture
Specifications
| Specification | Celestron C6 SCT | Celestron EdgeHD 11 |
|---|---|---|
| Optics | ||
| Type | sct | sct |
| Optical design | Schmidt-Cassegrain | Aplanatic SCT |
| Aperture | 150mm | 279mm |
| Focal length | 1500mm | 2800mm |
| Native f/ratio | f/10.0 | f/10.0 |
| Image circle | — | 42mm |
| Full-frame support | No | Yes |
| Physical | ||
| Weight | 4.5kg | 12.7kg |
Advantages of Celestron C6 SCT
- Wider field — 1500mm vs 2800mm focal length
- Lighter (4.5kg vs 12.7kg) — easier to travel with
Advantages of Celestron EdgeHD 11
- Tighter framing — 2800mm vs 1500mm focal length
- 86% more light-gathering aperture
- Larger image circle (42mm) — supports bigger sensors
Best for — Celestron C6 SCT
- Small galaxies, planetary nebulae, lunar & planetary detail
- High-resolution long-exposure work
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 C6 SCT — typical FOV & scale
- With Full-frame (36×24mm, 3.76µm)FOV: 1.38° × 0.92°Scale: 0.52"/px
- With APS-C (23.5×15.7mm, 3.76µm)FOV: 0.90° × 0.60°Scale: 0.52"/px
- With IMX533 square (11.3×11.3mm, 3.76µm)FOV: 0.43° × 0.43°Scale: 0.52"/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 C6 SCT — recommended user
Best suited for experienced imagers chasing detail running a portable travel rig.
Celestron EdgeHD 11 — recommended user
Best suited for experienced imagers chasing detail running a permanent observatory setup.