telescopecomparison · 2-way
Astro-Physics 110mm f/6 StarFire GTX vs Askar 107PHQ
Astro-Physics
110mm f/6 StarFire GTX
Best suited for intermediate imagers building a versatile kit running a backyard imaging setup.
Askar
107PHQ
Best suited for intermediate imagers building a versatile kit running a backyard imaging setup.
Key differences
-12% focal length
Faster by 1.0 f-stops
Specifications
| Specification | Astro-Physics 110mm f/6 StarFire GTX | Askar 107PHQ |
|---|---|---|
| Optics | ||
| Type | refractor | refractor |
| Optical design | Apo triplet Super-ED | Petzval quintuplet FPL-51 |
| Aperture | 110mm | 107mm |
| Focal length | 660mm | 749mm |
| Native f/ratio | f/6.0 | f/7.0 |
| Image circle | 50mm | 44mm |
| Full-frame support | Yes | Yes |
| Physical | ||
| Weight | 5.5kg | 7.5kg |
Advantages of Astro-Physics 110mm f/6 StarFire GTX
- Wider field — 660mm vs 749mm focal length
- Faster optics at f/6 vs f/7
- Larger image circle (50mm) — supports bigger sensors
- Lighter (5.45kg vs 7.5kg) — easier to travel with
Advantages of Askar 107PHQ
- Tighter framing — 749mm vs 660mm focal length
Best for — Astro-Physics 110mm f/6 StarFire GTX
- Large emission nebulae and star clusters
- Full-frame astro cameras and DSLRs
Best for — Askar 107PHQ
- Medium-sized galaxies and planetary nebulae
- 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 107PHQ — typical FOV & scale
- With Full-frame (36×24mm, 3.76µm)FOV: 2.75° × 1.84°Scale: 1.04"/px
- With APS-C (23.5×15.7mm, 3.76µm)FOV: 1.80° × 1.20°Scale: 1.04"/px
- With IMX533 square (11.3×11.3mm, 3.76µm)FOV: 0.86° × 0.86°Scale: 1.04"/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 107PHQ — recommended user
Best suited for intermediate imagers building a versatile kit running a backyard imaging setup.
