telescopecomparison · 2-way
Astro-Physics 110mm f/6 StarFire GTX vs Askar FRA600
Astro-Physics
110mm f/6 StarFire GTX
Best suited for intermediate imagers building a versatile kit running a backyard imaging setup.
Askar
FRA600
Best suited for intermediate imagers building a versatile kit running a backyard imaging setup.
Key differences
+10% focal length
Slower by 0.4 f-stops
Specifications
| Specification | Astro-Physics 110mm f/6 StarFire GTX | Askar FRA600 |
|---|---|---|
| Optics | ||
| Type | refractor | Refractor |
| Optical design | Apo triplet Super-ED | Petzval Quintuplet APO |
| Aperture | 110mm | 108mm |
| Focal length | 660mm | 600mm |
| Native f/ratio | f/6.0 | f/5.6 |
| Image circle | 50mm | 60mm |
| Full-frame support | Yes | Yes |
| Physical | ||
| Weight | 5.5kg | 7.8kg |
Advantages of Astro-Physics 110mm f/6 StarFire GTX
- Lighter (5.45kg vs 7.8kg) — easier to travel with
Advantages of Askar FRA600
- Faster optics at f/5.6 vs f/6
- Larger image circle (60mm) — supports bigger sensors
Best for — Astro-Physics 110mm f/6 StarFire GTX
- Large emission nebulae and star clusters
- Full-frame astro cameras and DSLRs
Best for — Askar FRA600
- Large emission nebulae and star clusters
- Full-frame astro cameras and DSLRs
Astro-Physics 110mm f/6 StarFire GTX — typical FOV & scale
- With Full-frame (36×24mm, 3.76µm)FOV: 3.13° × 2.08°Scale: 1.18"/px
- With APS-C (23.5×15.7mm, 3.76µm)FOV: 2.04° × 1.36°Scale: 1.18"/px
- With IMX533 square (11.3×11.3mm, 3.76µm)FOV: 0.98° × 0.98°Scale: 1.18"/px
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
Astro-Physics 110mm f/6 StarFire GTX — recommended user
Best suited for intermediate imagers building a versatile kit running a backyard imaging setup.
Askar FRA600 — recommended user
Best suited for intermediate imagers building a versatile kit running a backyard imaging setup.
