telescopecomparison · 2-way
Takahashi FSQ-106EDX4 vs Takahashi TOA-150B
Takahashi
FSQ-106EDX4
Best suited for intermediate imagers building a versatile kit running a backyard imaging setup.
Takahashi
TOA-150B
Best suited for intermediate imagers building a versatile kit running a permanent observatory setup.
Key differences
-52% focal length
-29% aperture
Faster by 2.3 f-stops
Specifications
| Specification | Takahashi FSQ-106EDX4 | Takahashi TOA-150B |
|---|---|---|
| Optics | ||
| Type | Refractor | refractor |
| Optical design | Petzval APO | Apo triplet |
| Aperture | 106mm | 150mm |
| Focal length | 530mm | 1100mm |
| Native f/ratio | f/5.0 | f/7.3 |
| Image circle | 88mm | 88mm |
| Full-frame support | Yes | Yes |
| Physical | ||
| Weight | 7.5kg | 13.5kg |
Advantages of Takahashi FSQ-106EDX4
- Wider field — 530mm vs 1100mm focal length
- Faster optics at f/5 vs f/7.3
- Lighter (7.5kg vs 13.5kg) — easier to travel with
Advantages of Takahashi TOA-150B
- Tighter framing — 1100mm vs 530mm focal length
- 42% more light-gathering aperture
Best for — Takahashi FSQ-106EDX4
- Large emission nebulae and star clusters
- Fast imaging — short exposures per sub
- Full-frame astro cameras and DSLRs
Best for — Takahashi TOA-150B
- Medium-sized galaxies and planetary nebulae
- Full-frame astro cameras and DSLRs
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
Takahashi TOA-150B — typical FOV & scale
- With Full-frame (36×24mm, 3.76µm)FOV: 1.88° × 1.25°Scale: 0.71"/px
- With APS-C (23.5×15.7mm, 3.76µm)FOV: 1.22° × 0.82°Scale: 0.71"/px
- With IMX533 square (11.3×11.3mm, 3.76µm)FOV: 0.59° × 0.59°Scale: 0.71"/px
Takahashi FSQ-106EDX4 — recommended user
Best suited for intermediate imagers building a versatile kit running a backyard imaging setup.
Takahashi TOA-150B — recommended user
Best suited for intermediate imagers building a versatile kit running a permanent observatory setup.