telescopecomparison · 2-way
Sky-Watcher Evostar 80ED vs Tele Vue TV-85
Sky-Watcher
Evostar 80ED
Best suited for intermediate imagers building a versatile kit running a portable travel rig.
Tele Vue
TV-85
Best suited for intermediate imagers building a versatile kit running a portable travel rig.
Key differences
-6% aperture
Slower by 0.5 f-stops
Specifications
| Specification | Sky-Watcher Evostar 80ED | Tele Vue TV-85 |
|---|---|---|
| Optics | ||
| Type | refractor | refractor |
| Optical design | Apo doublet FPL-53 | Apo doublet |
| Aperture | 80mm | 85mm |
| Focal length | 600mm | 600mm |
| Native f/ratio | f/7.5 | f/7.0 |
| Image circle | 44mm | — |
| Full-frame support | No | No |
| Physical | ||
| Weight | 3.8kg | 2.9kg |
Advantages of Sky-Watcher Evostar 80ED
- Larger image circle (44mm) — supports bigger sensors
Advantages of Tele Vue TV-85
- Faster optics at f/7 vs f/7.5
- Lighter (2.9kg vs 3.8kg) — easier to travel with
Best for — Sky-Watcher Evostar 80ED
- Large emission nebulae and star clusters
Best for — Tele Vue TV-85
- Large emission nebulae and star clusters
Sky-Watcher Evostar 80ED — typical FOV & scale
- With Full-frame (36×24mm, 3.76µm)FOV: 3.44° × 2.29°Scale: 1.29"/px
- With APS-C (23.5×15.7mm, 3.76µm)FOV: 2.24° × 1.50°Scale: 1.29"/px
- With IMX533 square (11.3×11.3mm, 3.76µm)FOV: 1.08° × 1.08°Scale: 1.29"/px
Tele Vue TV-85 — typical FOV & scale
- With Full-frame (36×24mm, 3.76µm)FOV: 3.44° × 2.29°Scale: 1.29"/px
- With APS-C (23.5×15.7mm, 3.76µm)FOV: 2.24° × 1.50°Scale: 1.29"/px
- With IMX533 square (11.3×11.3mm, 3.76µm)FOV: 1.08° × 1.08°Scale: 1.29"/px
Sky-Watcher Evostar 80ED — recommended user
Best suited for intermediate imagers building a versatile kit running a portable travel rig.
Tele Vue TV-85 — recommended user
Best suited for intermediate imagers building a versatile kit running a portable travel rig.