telescopecomparison · 2-way
Astro-Physics 110mm f/6 StarFire GTX vs Takahashi FSQ-106EDX4
Astro-Physics
110mm f/6 StarFire GTX
Best suited for intermediate imagers building a versatile kit running a backyard imaging setup.
Takahashi
FSQ-106EDX4
Best suited for intermediate imagers building a versatile kit running a backyard imaging setup.
Key differences
+25% focal length
Slower by 1.0 f-stops
Specifications
| Specification | Astro-Physics 110mm f/6 StarFire GTX | Takahashi FSQ-106EDX4 |
|---|---|---|
| Optics | ||
| Type | refractor | Refractor |
| Optical design | Apo triplet Super-ED | Petzval APO |
| Aperture | 110mm | 106mm |
| Focal length | 660mm | 530mm |
| Native f/ratio | f/6.0 | f/5.0 |
| Image circle | 50mm | 88mm |
| Full-frame support | Yes | Yes |
| Physical | ||
| Weight | 5.5kg | 7.5kg |
Advantages of Astro-Physics 110mm f/6 StarFire GTX
- Tighter framing — 660mm vs 530mm focal length
- Lighter (5.45kg vs 7.5kg) — easier to travel with
Advantages of Takahashi FSQ-106EDX4
- Wider field — 530mm vs 660mm focal length
- Faster optics at f/5 vs f/6
- Larger image circle (88mm) — 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 — Takahashi FSQ-106EDX4
- Large emission nebulae and star clusters
- Fast imaging — short exposures per sub
- 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
Takahashi FSQ-106EDX4 — typical FOV & scale
- With Full-frame (36×24mm, 3.76µm)FOV: 3.89° × 2.59°Scale: 1.46"/px
- With APS-C (23.5×15.7mm, 3.76µm)FOV: 2.54° × 1.70°Scale: 1.46"/px
- With IMX533 square (11.3×11.3mm, 3.76µm)FOV: 1.22° × 1.22°Scale: 1.46"/px
Astro-Physics 110mm f/6 StarFire GTX — recommended user
Best suited for intermediate imagers building a versatile kit running a backyard imaging setup.
Takahashi FSQ-106EDX4 — recommended user
Best suited for intermediate imagers building a versatile kit running a backyard imaging setup.
