telescopecomparison · 2-way
Askar FRA400 vs Sky-Watcher Esprit 80ED
Sky-Watcher
Esprit 80ED
Best suited for beginners and wide-field enthusiasts running a backyard imaging setup.
Key differences
-10% aperture
Slower by 0.6 f-stops
Specifications
| Specification | Askar FRA400 | Sky-Watcher Esprit 80ED |
|---|---|---|
| Optics | ||
| Type | Refractor | Refractor |
| Optical design | Petzval Quintuplet APO | Triplet APO |
| Aperture | 72mm | 80mm |
| Focal length | 400mm | 400mm |
| Native f/ratio | f/5.6 | f/5.0 |
| Image circle | 44mm | 44mm |
| Full-frame support | Yes | Yes |
| Physical | ||
| Weight | 3.9kg | 5.7kg |
Advantages of Askar FRA400
- Lighter (3.9kg vs 5.7kg) — easier to travel with
Advantages of Sky-Watcher Esprit 80ED
- 11% more light-gathering aperture
- Faster optics at f/5 vs f/5.6
Best for — Askar FRA400
- Large emission nebulae and star clusters
- Full-frame astro cameras and DSLRs
Best for — Sky-Watcher Esprit 80ED
- Large emission nebulae and star clusters
- Fast imaging — short exposures per sub
- Full-frame astro cameras and DSLRs
Askar FRA400 — 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
Sky-Watcher Esprit 80ED — 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
Askar FRA400 — recommended user
Best suited for beginners and wide-field enthusiasts running a portable travel rig.
Sky-Watcher Esprit 80ED — recommended user
Best suited for beginners and wide-field enthusiasts running a backyard imaging setup.