telescopecomparison · 2-way
Celestron C6 SCT vs Tele Vue NP127fli
Tele Vue
NP127fli
Best suited for intermediate imagers building a versatile kit running a backyard imaging setup.
Key differences
+127% focal length
+18% aperture
Slower by 4.8 f-stops
Specifications
| Specification | Celestron C6 SCT | Tele Vue NP127fli |
|---|---|---|
| Optics | ||
| Type | sct | refractor |
| Optical design | Schmidt-Cassegrain | Nagler-Petzval |
| Aperture | 150mm | 127mm |
| Focal length | 1500mm | 660mm |
| Native f/ratio | f/10.0 | f/5.2 |
| Image circle | — | 52mm |
| Full-frame support | No | Yes |
| Physical | ||
| Weight | 4.5kg | 9.5kg |
Advantages of Celestron C6 SCT
- Tighter framing — 1500mm vs 660mm focal length
- 18% more light-gathering aperture
- Lighter (4.5kg vs 9.5kg) — easier to travel with
Advantages of Tele Vue NP127fli
- Wider field — 660mm vs 1500mm focal length
- Faster optics at f/5.2 vs f/10
- Larger image circle (52mm) — supports bigger sensors
Best for — Celestron C6 SCT
- Small galaxies, planetary nebulae, lunar & planetary detail
- High-resolution long-exposure work
Best for — Tele Vue NP127fli
- Large emission nebulae and star clusters
- 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
Tele Vue NP127fli — typical FOV & scale
- With Full-frame (36×24mm, 3.76µm)FOV: 3.13° × 2.08°Scale: 1.18"/px
- With APS-C (23.5×15.7mm, 3.76µm)FOV: 2.04° × 1.36°Scale: 1.18"/px
- With IMX533 square (11.3×11.3mm, 3.76µm)FOV: 0.98° × 0.98°Scale: 1.18"/px
Celestron C6 SCT — recommended user
Best suited for experienced imagers chasing detail running a portable travel rig.
Tele Vue NP127fli — recommended user
Best suited for intermediate imagers building a versatile kit running a backyard imaging setup.