telescopecomparison · 2-way
Vaonis Stellina vs Radian Raptor 61

Vaonis
Stellina
Best suited for beginners and wide-field enthusiasts running a backyard imaging setup.

Key differences
+45% focal length
+31% aperture
Slower by 0.5 f-stops
Specifications
| Specification | Vaonis Stellina | Radian Raptor 61 |
|---|---|---|
| Optics | ||
| Type | smart-telescope | refractor |
| Optical design | Apo doublet all-in-one | Petzval quadruplet |
| Aperture | 80mm | 61mm |
| Focal length | 400mm | 275mm |
| Native f/ratio | f/5.0 | f/4.5 |
| Image circle | — | 44mm |
| Full-frame support | No | No |
| Physical | ||
| Weight | 11.2kg | 2.6kg |
Advantages of Vaonis Stellina
- Tighter framing — 400mm vs 275mm focal length
- 31% more light-gathering aperture
Advantages of Radian Raptor 61
- Wider field — 275mm vs 400mm focal length
- Faster optics at f/4.5 vs f/5
- Larger image circle (44mm) — supports bigger sensors
- Lighter (2.6kg 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 — Radian Raptor 61
- Wide-field nebulae and Milky Way regions
- Fast imaging — short exposures per sub
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
Radian Raptor 61 — typical FOV & scale
- With Full-frame (36×24mm, 3.76µm)FOV: 7.50° × 5.00°Scale: 2.82"/px
- With APS-C (23.5×15.7mm, 3.76µm)FOV: 4.90° × 3.27°Scale: 2.82"/px
- With IMX533 square (11.3×11.3mm, 3.76µm)FOV: 2.35° × 2.35°Scale: 2.82"/px
Vaonis Stellina — recommended user
Best suited for beginners and wide-field enthusiasts running a backyard imaging setup.
Radian Raptor 61 — recommended user
Best suited for beginners and wide-field enthusiasts running a portable travel rig.