telescopecomparison · 2-way
Tele Vue NP127fli vs Sky-Watcher Esprit 100ED
Tele Vue
NP127fli
Best suited for intermediate imagers building a versatile kit running a backyard imaging setup.
Sky-Watcher
Esprit 100ED
Best suited for intermediate imagers building a versatile kit running a backyard imaging setup.
Key differences
+20% focal length
+27% aperture
Specifications
| Specification | Tele Vue NP127fli | Sky-Watcher Esprit 100ED |
|---|---|---|
| Optics | ||
| Type | refractor | Refractor |
| Optical design | Nagler-Petzval | Triplet APO |
| Aperture | 127mm | 100mm |
| Focal length | 660mm | 550mm |
| Native f/ratio | f/5.2 | f/5.5 |
| Image circle | 52mm | 44mm |
| Full-frame support | Yes | Yes |
| Physical | ||
| Weight | 9.5kg | 8.6kg |
Advantages of Tele Vue NP127fli
- Tighter framing — 660mm vs 550mm focal length
- 27% more light-gathering aperture
- Larger image circle (52mm) — supports bigger sensors
Advantages of Sky-Watcher Esprit 100ED
- Wider field — 550mm vs 660mm focal length
Best for — Tele Vue NP127fli
- Large emission nebulae and star clusters
- Full-frame astro cameras and DSLRs
Best for — Sky-Watcher Esprit 100ED
- Large emission nebulae and star clusters
- Full-frame astro cameras and DSLRs
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
Sky-Watcher Esprit 100ED — typical FOV & scale
- With Full-frame (36×24mm, 3.76µm)FOV: 3.75° × 2.50°Scale: 1.41"/px
- With APS-C (23.5×15.7mm, 3.76µm)FOV: 2.45° × 1.64°Scale: 1.41"/px
- With IMX533 square (11.3×11.3mm, 3.76µm)FOV: 1.18° × 1.18°Scale: 1.41"/px
Tele Vue NP127fli — recommended user
Best suited for intermediate imagers building a versatile kit running a backyard imaging setup.
Sky-Watcher Esprit 100ED — recommended user
Best suited for intermediate imagers building a versatile kit running a backyard imaging setup.
