telescopecomparison · 2-way
Takahashi FSQ-85EDX vs Takahashi Mewlon-210
Takahashi
FSQ-85EDX
Best suited for beginners and wide-field enthusiasts running a portable travel rig.
Takahashi
Mewlon-210
Best suited for experienced imagers chasing detail running a permanent observatory setup.
Key differences
-81% focal length
-60% aperture
Faster by 6.2 f-stops
Specifications
| Specification | Takahashi FSQ-85EDX | Takahashi Mewlon-210 |
|---|---|---|
| Optics | ||
| Type | Refractor | cassegrain |
| Optical design | Petzval APO | Dall-Kirkham |
| Aperture | 85mm | 210mm |
| Focal length | 450mm | 2415mm |
| Native f/ratio | f/5.3 | f/11.5 |
| Image circle | 44mm | — |
| Full-frame support | Yes | No |
| Physical | ||
| Weight | 4.0kg | 15.5kg |
Advantages of Takahashi FSQ-85EDX
- Wider field — 450mm vs 2415mm focal length
- Faster optics at f/5.3 vs f/11.5
- Larger image circle (44mm) — supports bigger sensors
- Lighter (4kg vs 15.5kg) — easier to travel with
Advantages of Takahashi Mewlon-210
- Tighter framing — 2415mm vs 450mm focal length
- 147% more light-gathering aperture
Best for — Takahashi FSQ-85EDX
- Large emission nebulae and star clusters
- Full-frame astro cameras and DSLRs
Best for — Takahashi Mewlon-210
- Small galaxies, planetary nebulae, lunar & planetary detail
- High-resolution long-exposure work
- Faint-object imaging under dark skies
Takahashi FSQ-85EDX — typical FOV & scale
- With Full-frame (36×24mm, 3.76µm)FOV: 4.58° × 3.06°Scale: 1.72"/px
- With APS-C (23.5×15.7mm, 3.76µm)FOV: 2.99° × 2.00°Scale: 1.72"/px
- With IMX533 square (11.3×11.3mm, 3.76µm)FOV: 1.44° × 1.44°Scale: 1.72"/px
Takahashi Mewlon-210 — typical FOV & scale
- With Full-frame (36×24mm, 3.76µm)FOV: 0.85° × 0.57°Scale: 0.32"/px
- With APS-C (23.5×15.7mm, 3.76µm)FOV: 0.56° × 0.37°Scale: 0.32"/px
- With IMX533 square (11.3×11.3mm, 3.76µm)FOV: 0.27° × 0.27°Scale: 0.32"/px
Takahashi FSQ-85EDX — recommended user
Best suited for beginners and wide-field enthusiasts running a portable travel rig.
Takahashi Mewlon-210 — recommended user
Best suited for experienced imagers chasing detail running a permanent observatory setup.