telescopecomparison · 2-way
Sky-Watcher Evolux 82ED vs Askar FRA500
Sky-Watcher
Evolux 82ED
Best suited for beginners and wide-field enthusiasts running a portable travel rig.
Key differences
-9% aperture
Slower by 0.5 f-stops
Specifications
| Specification | Sky-Watcher Evolux 82ED | Askar FRA500 |
|---|---|---|
| Optics | ||
| Type | refractor | Refractor |
| Optical design | Apo doublet FPL-53 | Petzval Quintuplet APO |
| Aperture | 82mm | 90mm |
| Focal length | 499mm | 500mm |
| Native f/ratio | f/6.1 | f/5.6 |
| Image circle | 44mm | 60mm |
| Full-frame support | No | Yes |
| Physical | ||
| Weight | 3.6kg | 5.4kg |
Advantages of Sky-Watcher Evolux 82ED
- Lighter (3.6kg vs 5.4kg) — easier to travel with
Advantages of Askar FRA500
- Faster optics at f/5.6 vs f/6.1
- Larger image circle (60mm) — supports bigger sensors
Best for — Sky-Watcher Evolux 82ED
- Large emission nebulae and star clusters
Best for — Askar FRA500
- Large emission nebulae and star clusters
- Full-frame astro cameras and DSLRs
Sky-Watcher Evolux 82ED — typical FOV & scale
- With Full-frame (36×24mm, 3.76µm)FOV: 4.13° × 2.76°Scale: 1.55"/px
- With APS-C (23.5×15.7mm, 3.76µm)FOV: 2.70° × 1.80°Scale: 1.55"/px
- With IMX533 square (11.3×11.3mm, 3.76µm)FOV: 1.30° × 1.30°Scale: 1.55"/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
Sky-Watcher Evolux 82ED — recommended user
Best suited for beginners and wide-field enthusiasts running a portable travel rig.
Askar FRA500 — recommended user
Best suited for beginners and wide-field enthusiasts running a backyard imaging setup.