telescopecomparison · 2-way
Vaonis Stellina vs William Optics RedCat 71
Vaonis
Stellina
Best suited for beginners and wide-field enthusiasts running a backyard imaging setup.
William Optics
RedCat 71
Best suited for beginners and wide-field enthusiasts running a portable travel rig.
Key differences
+14% focal length
+13% aperture
Specifications
| Specification | Vaonis Stellina | William Optics RedCat 71 |
|---|---|---|
| Optics | ||
| Type | smart-telescope | Refractor |
| Optical design | Apo doublet all-in-one | Petzval APO |
| Aperture | 80mm | 71mm |
| Focal length | 400mm | 350mm |
| Native f/ratio | f/5.0 | f/4.9 |
| Image circle | — | 45mm |
| Full-frame support | No | Yes |
| Physical | ||
| Weight | 11.2kg | 2.7kg |
Advantages of Vaonis Stellina
- Tighter framing — 400mm vs 350mm focal length
- 13% more light-gathering aperture
Advantages of William Optics RedCat 71
- Wider field — 350mm vs 400mm focal length
- Larger image circle (45mm) — supports bigger sensors
- Lighter (2.7kg vs 11.2kg) — easier to travel with
Best for — Vaonis Stellina
- Large emission nebulae and star clusters
- Fast imaging — short exposures per sub
Best for — William Optics RedCat 71
- Wide-field nebulae and Milky Way regions
- Fast imaging — short exposures per sub
- Full-frame astro cameras and DSLRs
Vaonis Stellina — typical FOV & scale
- With Full-frame (36×24mm, 3.76µm)FOV: 5.16° × 3.44°Scale: 1.94"/px
- With APS-C (23.5×15.7mm, 3.76µm)FOV: 3.37° × 2.25°Scale: 1.94"/px
- With IMX533 square (11.3×11.3mm, 3.76µm)FOV: 1.62° × 1.62°Scale: 1.94"/px
William Optics RedCat 71 — typical FOV & scale
- With Full-frame (36×24mm, 3.76µm)FOV: 5.89° × 3.93°Scale: 2.22"/px
- With APS-C (23.5×15.7mm, 3.76µm)FOV: 3.85° × 2.57°Scale: 2.22"/px
- With IMX533 square (11.3×11.3mm, 3.76µm)FOV: 1.85° × 1.85°Scale: 2.22"/px
Vaonis Stellina — recommended user
Best suited for beginners and wide-field enthusiasts running a backyard imaging setup.
William Optics RedCat 71 — recommended user
Best suited for beginners and wide-field enthusiasts running a portable travel rig.