telescopecomparison · 2-way
Askar FRA600 vs ZWO FF80 APO
Askar
FRA600
Best suited for intermediate imagers building a versatile kit running a backyard imaging setup.
ZWO
FF80 APO
Best suited for intermediate imagers building a versatile kit running a portable travel rig.
Key differences
+7% focal length
+35% aperture
Faster by 1.4 f-stops
Specifications
| Specification | Askar FRA600 | ZWO FF80 APO |
|---|---|---|
| Optics | ||
| Type | Refractor | refractor |
| Optical design | Petzval Quintuplet APO | Apo doublet FCD-100 |
| Aperture | 108mm | 80mm |
| Focal length | 600mm | 560mm |
| Native f/ratio | f/5.6 | f/7.0 |
| Image circle | 60mm | 44mm |
| Full-frame support | Yes | No |
| Physical | ||
| Weight | 7.8kg | 4.0kg |
Advantages of Askar FRA600
- 35% more light-gathering aperture
- Faster optics at f/5.6 vs f/7
- Larger image circle (60mm) — supports bigger sensors
Advantages of ZWO FF80 APO
- Lighter (4kg vs 7.8kg) — easier to travel with
Best for — Askar FRA600
- Large emission nebulae and star clusters
- Full-frame astro cameras and DSLRs
Best for — ZWO FF80 APO
- Large emission nebulae and star clusters
Askar FRA600 — 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
ZWO FF80 APO — typical FOV & scale
- With Full-frame (36×24mm, 3.76µm)FOV: 3.68° × 2.46°Scale: 1.38"/px
- With APS-C (23.5×15.7mm, 3.76µm)FOV: 2.40° × 1.61°Scale: 1.38"/px
- With IMX533 square (11.3×11.3mm, 3.76µm)FOV: 1.16° × 1.16°Scale: 1.38"/px
Askar FRA600 — recommended user
Best suited for intermediate imagers building a versatile kit running a backyard imaging setup.
ZWO FF80 APO — recommended user
Best suited for intermediate imagers building a versatile kit running a portable travel rig.