telescopecomparison · 2-way
ZWO FF65 APO vs Sky-Watcher Evostar 72ED
Sky-Watcher
Evostar 72ED
Best suited for beginners and wide-field enthusiasts running a portable travel rig.
Key differences
-10% aperture
Slower by 0.6 f-stops
Specifications
| Specification | ZWO FF65 APO | Sky-Watcher Evostar 72ED |
|---|---|---|
| Optics | ||
| Type | refractor | refractor |
| Optical design | Quintuplet air-spaced APO (two ED elements) | Apo doublet FPL-53 |
| Aperture | 65mm | 72mm |
| Focal length | 416mm | 420mm |
| Native f/ratio | f/6.4 | f/5.8 |
| Image circle | 44mm | 44mm |
| Full-frame support | Yes | No |
| Physical | ||
| Weight | 2.0kg | 2.4kg |
Advantages of ZWO FF65 APO
- Lighter (2kg vs 2.4kg) — easier to travel with
Advantages of Sky-Watcher Evostar 72ED
- 11% more light-gathering aperture
- Faster optics at f/5.8 vs f/6.4
Best for — ZWO FF65 APO
- Large emission nebulae and star clusters
- Full-frame astro cameras and DSLRs
Best for — Sky-Watcher Evostar 72ED
- Large emission nebulae and star clusters
ZWO FF65 APO — 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 Evostar 72ED — typical FOV & scale
- With Full-frame (36×24mm, 3.76µm)FOV: 4.91° × 3.27°Scale: 1.85"/px
- With APS-C (23.5×15.7mm, 3.76µm)FOV: 3.21° × 2.14°Scale: 1.85"/px
- With IMX533 square (11.3×11.3mm, 3.76µm)FOV: 1.54° × 1.54°Scale: 1.85"/px
ZWO FF65 APO — recommended user
Best suited for beginners and wide-field enthusiasts running a portable travel rig.
Sky-Watcher Evostar 72ED — recommended user
Best suited for beginners and wide-field enthusiasts running a portable travel rig.
