telescopecomparison · 2-way
Unistellar Odyssey vs Radian Raptor 61
Unistellar
Odyssey
Best suited for beginners and wide-field enthusiasts running a portable travel rig.
Key differences
+16% focal length
+39% aperture
Faster by 0.6 f-stops
Specifications
| Specification | Unistellar Odyssey | Radian Raptor 61 |
|---|---|---|
| Optics | ||
| Type | smart-telescope | refractor |
| Optical design | Newtonian reflector all-in-one | Petzval quadruplet |
| Aperture | 85mm | 61mm |
| Focal length | 320mm | 275mm |
| Native f/ratio | f/3.9 | f/4.5 |
| Image circle | — | 44mm |
| Full-frame support | No | No |
| Physical | ||
| Weight | 4.0kg | 2.6kg |
Advantages of Unistellar Odyssey
- Tighter framing — 320mm vs 275mm focal length
- 39% more light-gathering aperture
- Faster optics at f/3.9 vs f/4.5
Advantages of Radian Raptor 61
- Wider field — 275mm vs 320mm focal length
- Larger image circle (44mm) — supports bigger sensors
- Lighter (2.6kg vs 3.99kg) — easier to travel with
Best for — Unistellar Odyssey
- Wide-field nebulae and Milky Way regions
- Fast imaging — short exposures per sub
Best for — Radian Raptor 61
- Wide-field nebulae and Milky Way regions
- Fast imaging — short exposures per sub
Unistellar Odyssey — typical FOV & scale
- With Full-frame (36×24mm, 3.76µm)FOV: 6.45° × 4.30°Scale: 2.42"/px
- With APS-C (23.5×15.7mm, 3.76µm)FOV: 4.21° × 2.81°Scale: 2.42"/px
- With IMX533 square (11.3×11.3mm, 3.76µm)FOV: 2.02° × 2.02°Scale: 2.42"/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
Unistellar Odyssey — recommended user
Best suited for beginners and wide-field enthusiasts running a portable travel rig.
Radian Raptor 61 — recommended user
Best suited for beginners and wide-field enthusiasts running a portable travel rig.
