telescopecomparison · 2-way
Sky-Watcher Evolux 82ED vs Askar 65PHQ
Sky-Watcher
Evolux 82ED
Best suited for beginners and wide-field enthusiasts running a portable travel rig.
Key differences
+20% focal length
+26% aperture
Faster by 0.3 f-stops
Specifications
| Specification | Sky-Watcher Evolux 82ED | Askar 65PHQ |
|---|---|---|
| Optics | ||
| Type | refractor | Refractor |
| Optical design | Apo doublet FPL-53 | Quintuplet Petzval |
| Aperture | 82mm | 65mm |
| Focal length | 499mm | 416mm |
| Native f/ratio | f/6.1 | f/6.4 |
| Image circle | 44mm | 44mm |
| Full-frame support | No | Yes |
| Physical | ||
| Weight | 3.6kg | 3.6kg |
Advantages of Sky-Watcher Evolux 82ED
- Tighter framing — 499mm vs 416mm focal length
- 26% more light-gathering aperture
- Faster optics at f/6.1 vs f/6.4
Advantages of Askar 65PHQ
- Wider field — 416mm vs 499mm focal length
Best for — Sky-Watcher Evolux 82ED
- Large emission nebulae and star clusters
Best for — Askar 65PHQ
- 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 65PHQ — typical FOV & scale
- With Full-frame (36×24mm, 3.76µm)FOV: 4.96° × 3.31°Scale: 1.86"/px
- With APS-C (23.5×15.7mm, 3.76µm)FOV: 3.24° × 2.16°Scale: 1.86"/px
- With IMX533 square (11.3×11.3mm, 3.76µm)FOV: 1.56° × 1.56°Scale: 1.86"/px
Sky-Watcher Evolux 82ED — recommended user
Best suited for beginners and wide-field enthusiasts running a portable travel rig.
Askar 65PHQ — recommended user
Best suited for beginners and wide-field enthusiasts running a portable travel rig.