telescopecomparison · 2-way
Unistellar eVscope 2 vs Askar FRA500
Unistellar
eVscope 2
Best suited for beginners and wide-field enthusiasts running a backyard imaging setup.
Key differences
-10% focal length
+27% aperture
Faster by 1.7 f-stops
Specifications
| Specification | Unistellar eVscope 2 | Askar FRA500 |
|---|---|---|
| Optics | ||
| Type | smart-telescope | Refractor |
| Optical design | Newtonian all-in-one | Petzval Quintuplet APO |
| Aperture | 114mm | 90mm |
| Focal length | 450mm | 500mm |
| Native f/ratio | f/3.9 | f/5.6 |
| Image circle | — | 60mm |
| Full-frame support | No | Yes |
| Physical | ||
| Weight | 9.0kg | 5.4kg |
Advantages of Unistellar eVscope 2
- 27% more light-gathering aperture
- Faster optics at f/3.9 vs f/5.6
Advantages of Askar FRA500
- Tighter framing — 500mm vs 450mm focal length
- Larger image circle (60mm) — supports bigger sensors
- Lighter (5.4kg vs 9kg) — easier to travel with
Best for — Unistellar eVscope 2
- Large emission nebulae and star clusters
- Fast imaging — short exposures per sub
Best for — Askar FRA500
- Large emission nebulae and star clusters
- Full-frame astro cameras and DSLRs
Unistellar eVscope 2 — typical FOV & scale
- With Full-frame (36×24mm, 3.76µm)FOV: 4.58° × 3.06°Scale: 1.72"/px
- With APS-C (23.5×15.7mm, 3.76µm)FOV: 2.99° × 2.00°Scale: 1.72"/px
- With IMX533 square (11.3×11.3mm, 3.76µm)FOV: 1.44° × 1.44°Scale: 1.72"/px
Askar FRA500 — typical FOV & scale
- With Full-frame (36×24mm, 3.76µm)FOV: 4.13° × 2.75°Scale: 1.55"/px
- With APS-C (23.5×15.7mm, 3.76µm)FOV: 2.69° × 1.80°Scale: 1.55"/px
- With IMX533 square (11.3×11.3mm, 3.76µm)FOV: 1.29° × 1.29°Scale: 1.55"/px
Unistellar eVscope 2 — recommended user
Best suited for beginners and wide-field enthusiasts running a backyard imaging setup.
Askar FRA500 — recommended user
Best suited for beginners and wide-field enthusiasts running a backyard imaging setup.
