telescopecomparison · 2-way
Takahashi FSQ-106EDX4 vs Takahashi FC-100DZ
Takahashi
FSQ-106EDX4
Best suited for intermediate imagers building a versatile kit running a backyard imaging setup.
Takahashi
FC-100DZ
Best suited for intermediate imagers building a versatile kit running a portable travel rig.
Key differences
-34% focal length
+6% aperture
Faster by 3.0 f-stops
Specifications
| Specification | Takahashi FSQ-106EDX4 | Takahashi FC-100DZ |
|---|---|---|
| Optics | ||
| Type | Refractor | refractor |
| Optical design | Petzval APO | Apo doublet fluorite |
| Aperture | 106mm | 100mm |
| Focal length | 530mm | 800mm |
| Native f/ratio | f/5.0 | f/8.0 |
| Image circle | 88mm | 44mm |
| Full-frame support | Yes | No |
| Physical | ||
| Weight | 7.5kg | 3.3kg |
Advantages of Takahashi FSQ-106EDX4
- Wider field — 530mm vs 800mm focal length
- Faster optics at f/5 vs f/8
- Larger image circle (88mm) — supports bigger sensors
Advantages of Takahashi FC-100DZ
- Tighter framing — 800mm vs 530mm focal length
- Lighter (3.3kg vs 7.5kg) — easier to travel with
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 FC-100DZ
- Medium-sized galaxies and planetary nebulae
- High-resolution long-exposure work
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 FC-100DZ — typical FOV & scale
- With Full-frame (36×24mm, 3.76µm)FOV: 2.58° × 1.72°Scale: 0.97"/px
- With APS-C (23.5×15.7mm, 3.76µm)FOV: 1.68° × 1.12°Scale: 0.97"/px
- With IMX533 square (11.3×11.3mm, 3.76µm)FOV: 0.81° × 0.81°Scale: 0.97"/px
Takahashi FSQ-106EDX4 — recommended user
Best suited for intermediate imagers building a versatile kit running a backyard imaging setup.
Takahashi FC-100DZ — recommended user
Best suited for intermediate imagers building a versatile kit running a portable travel rig.