telescopecomparison · 2-way
ZWO FF70 APO vs Sky-Watcher Esprit 70EDX
Sky-Watcher
Esprit 70EDX
Best suited for beginners and wide-field enthusiasts running a portable travel rig.
Specifications
| Specification | ZWO FF70 APO | Sky-Watcher Esprit 70EDX |
|---|---|---|
| Optics | ||
| Type | refractor | refractor |
| Optical design | Apo quadruplet ED | Apo triplet |
| Aperture | 70mm | 70mm |
| Focal length | 490mm | 490mm |
| Native f/ratio | f/7.0 | f/7.0 |
| Image circle | 44mm | — |
| Full-frame support | Yes | Yes |
| Physical | ||
| Weight | 2.5kg | 3.2kg |
Advantages of ZWO FF70 APO
- Larger image circle (44mm) — supports bigger sensors
- Lighter (2.5kg vs 3.2kg) — easier to travel with
Advantages of Sky-Watcher Esprit 70EDX
Closely matched on the compared specs.
Best for — ZWO FF70 APO
- Large emission nebulae and star clusters
- Full-frame astro cameras and DSLRs
Best for — Sky-Watcher Esprit 70EDX
- Large emission nebulae and star clusters
- Full-frame astro cameras and DSLRs
ZWO FF70 APO — typical FOV & scale
- With Full-frame (36×24mm, 3.76µm)FOV: 4.21° × 2.81°Scale: 1.58"/px
- With APS-C (23.5×15.7mm, 3.76µm)FOV: 2.75° × 1.84°Scale: 1.58"/px
- With IMX533 square (11.3×11.3mm, 3.76µm)FOV: 1.32° × 1.32°Scale: 1.58"/px
Sky-Watcher Esprit 70EDX — typical FOV & scale
- With Full-frame (36×24mm, 3.76µm)FOV: 4.21° × 2.81°Scale: 1.58"/px
- With APS-C (23.5×15.7mm, 3.76µm)FOV: 2.75° × 1.84°Scale: 1.58"/px
- With IMX533 square (11.3×11.3mm, 3.76µm)FOV: 1.32° × 1.32°Scale: 1.58"/px
ZWO FF70 APO — recommended user
Best suited for beginners and wide-field enthusiasts running a portable travel rig.
Sky-Watcher Esprit 70EDX — recommended user
Best suited for beginners and wide-field enthusiasts running a portable travel rig.
