telescopecomparison · 2-way
Vixen R200SS vs Takahashi FC-100DZ
Vixen
R200SS
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
+100% aperture
Faster by 4.0 f-stops
Specifications
| Specification | Vixen R200SS | Takahashi FC-100DZ |
|---|---|---|
| Optics | ||
| Type | newtonian | refractor |
| Optical design | Newtonian astrograph | Apo doublet fluorite |
| Aperture | 200mm | 100mm |
| Focal length | 800mm | 800mm |
| Native f/ratio | f/4.0 | f/8.0 |
| Image circle | — | 44mm |
| Full-frame support | No | No |
| Physical | ||
| Weight | 7.5kg | 3.3kg |
Advantages of Vixen R200SS
- 100% more light-gathering aperture
- Faster optics at f/4 vs f/8
Advantages of Takahashi FC-100DZ
- Larger image circle (44mm) — supports bigger sensors
- Lighter (3.3kg vs 7.5kg) — easier to travel with
Best for — Vixen R200SS
- Medium-sized galaxies and planetary nebulae
- Fast imaging — short exposures per sub
- Faint-object imaging under dark skies
Best for — Takahashi FC-100DZ
- Medium-sized galaxies and planetary nebulae
- High-resolution long-exposure work
Vixen R200SS — 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 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
Vixen R200SS — 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.