telescopecomparison · 2-way
William Optics Pleiades 111 vs Tele Vue NP101is
William Optics
Pleiades 111
Best suited for intermediate imagers building a versatile kit running a backyard imaging setup.
Tele Vue
NP101is
Best suited for intermediate imagers building a versatile kit running a portable travel rig.
Key differences
+10% aperture
Faster by 0.6 f-stops
Specifications
| Specification | William Optics Pleiades 111 | Tele Vue NP101is |
|---|---|---|
| Optics | ||
| Type | astrograph | Refractor |
| Optical design | Astrograph (7-element) | Petzval |
| Aperture | 111mm | 101mm |
| Focal length | 528mm | 540mm |
| Native f/ratio | f/4.8 | f/5.4 |
| Image circle | 45mm | 40mm |
| Full-frame support | Yes | Yes |
| Physical | ||
| Weight | 8.0kg | 4.5kg |
Advantages of William Optics Pleiades 111
- Faster optics at f/4.8 vs f/5.4
Advantages of Tele Vue NP101is
- Lighter (4.5kg vs 7.95kg) — easier to travel with
Best for — William Optics Pleiades 111
- 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
William Optics Pleiades 111 — typical FOV & scale
- With Full-frame (36×24mm, 3.76µm)FOV: 3.91° × 2.60°Scale: 1.47"/px
- With APS-C (23.5×15.7mm, 3.76µm)FOV: 2.55° × 1.70°Scale: 1.47"/px
- With IMX533 square (11.3×11.3mm, 3.76µm)FOV: 1.23° × 1.23°Scale: 1.47"/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
William Optics Pleiades 111 — recommended user
Best suited for intermediate imagers building a versatile kit running a backyard imaging setup.
Tele Vue NP101is — recommended user
Best suited for intermediate imagers building a versatile kit running a portable travel rig.
