telescopecomparison · 2-way
Takahashi Epsilon-130D vs Tele Vue NP101is
Takahashi
Epsilon-130D
Best suited for beginners and wide-field enthusiasts running a backyard imaging setup.
Tele Vue
NP101is
Best suited for intermediate imagers building a versatile kit running a portable travel rig.
Key differences
-20% focal length
+29% aperture
Faster by 2.1 f-stops
Specifications
| Specification | Takahashi Epsilon-130D | Tele Vue NP101is |
|---|---|---|
| Optics | ||
| Type | astrograph | Refractor |
| Optical design | Hyperbolic Newtonian | Petzval |
| Aperture | 130mm | 101mm |
| Focal length | 430mm | 540mm |
| Native f/ratio | f/3.3 | f/5.4 |
| Image circle | 44mm | 40mm |
| Full-frame support | Yes | Yes |
| Physical | ||
| Weight | 7.8kg | 4.5kg |
Advantages of Takahashi Epsilon-130D
- Wider field — 430mm vs 540mm focal length
- 29% more light-gathering aperture
- Faster optics at f/3.3 vs f/5.4
Advantages of Tele Vue NP101is
- Tighter framing — 540mm vs 430mm focal length
- Lighter (4.5kg vs 7.8kg) — easier to travel with
Best for — Takahashi Epsilon-130D
- Large emission nebulae and star clusters
- Fast imaging — short exposures per sub
- Full-frame astro cameras and DSLRs
Best for — Tele Vue NP101is
- Large emission nebulae and star clusters
- Full-frame astro cameras and DSLRs
Takahashi Epsilon-130D — typical FOV & scale
- With Full-frame (36×24mm, 3.76µm)FOV: 4.80° × 3.20°Scale: 1.80"/px
- With APS-C (23.5×15.7mm, 3.76µm)FOV: 3.13° × 2.09°Scale: 1.80"/px
- With IMX533 square (11.3×11.3mm, 3.76µm)FOV: 1.51° × 1.51°Scale: 1.80"/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
Takahashi Epsilon-130D — recommended user
Best suited for beginners and wide-field enthusiasts running a backyard imaging setup.
Tele Vue NP101is — recommended user
Best suited for intermediate imagers building a versatile kit running a portable travel rig.