telescopecomparison · 2-way
Celestron EdgeHD 8 vs Tele Vue NP101is
Celestron
EdgeHD 8
Best suited for experienced imagers chasing detail running a backyard imaging setup.
Tele Vue
NP101is
Best suited for intermediate imagers building a versatile kit running a portable travel rig.
Key differences
+276% focal length
+101% aperture
Slower by 4.6 f-stops
Specifications
| Specification | Celestron EdgeHD 8 | Tele Vue NP101is |
|---|---|---|
| Optics | ||
| Type | SCT | Refractor |
| Optical design | Aplanatic SCT | Petzval |
| Aperture | 203mm | 101mm |
| Focal length | 2032mm | 540mm |
| Native f/ratio | f/10.0 | f/5.4 |
| Image circle | 42mm | 40mm |
| Full-frame support | Yes | Yes |
| Physical | ||
| Weight | 6.4kg | 4.5kg |
Advantages of Celestron EdgeHD 8
- Tighter framing — 2032mm vs 540mm focal length
- 101% more light-gathering aperture
Advantages of Tele Vue NP101is
- Wider field — 540mm vs 2032mm focal length
- Faster optics at f/5.4 vs f/10
- Lighter (4.5kg vs 6.4kg) — easier to travel with
Best for — Celestron EdgeHD 8
- 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 — Tele Vue NP101is
- Large emission nebulae and star clusters
- Full-frame astro cameras and DSLRs
Celestron EdgeHD 8 — 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
Tele Vue NP101is — typical FOV & scale
- With Full-frame (36×24mm, 3.76µm)FOV: 3.82° × 2.55°Scale: 1.44"/px
- With APS-C (23.5×15.7mm, 3.76µm)FOV: 2.49° × 1.67°Scale: 1.44"/px
- With IMX533 square (11.3×11.3mm, 3.76µm)FOV: 1.20° × 1.20°Scale: 1.44"/px
Celestron EdgeHD 8 — recommended user
Best suited for experienced imagers chasing detail running a backyard imaging setup.
Tele Vue NP101is — recommended user
Best suited for intermediate imagers building a versatile kit running a portable travel rig.