telescopecomparison · 2-way
Stellarvue SVX152T vs Takahashi TSA-120
Stellarvue
SVX152T
Best suited for intermediate imagers building a versatile kit running a permanent observatory setup.
Takahashi
TSA-120
Best suited for intermediate imagers building a versatile kit running a backyard imaging setup.
Key differences
+33% focal length
+27% aperture
Slower by 0.4 f-stops
Specifications
| Specification | Stellarvue SVX152T | Takahashi TSA-120 |
|---|---|---|
| Optics | ||
| Type | refractor | Refractor |
| Optical design | Apo triplet | Triplet APO |
| Aperture | 152mm | 120mm |
| Focal length | 1200mm | 900mm |
| Native f/ratio | f/7.9 | f/7.5 |
| Image circle | 60mm | 44mm |
| Full-frame support | Yes | Yes |
| Physical | ||
| Weight | 14.0kg | 7.5kg |
Advantages of Stellarvue SVX152T
- Tighter framing — 1200mm vs 900mm focal length
- 27% more light-gathering aperture
- Larger image circle (60mm) — supports bigger sensors
Advantages of Takahashi TSA-120
- Wider field — 900mm vs 1200mm focal length
- Faster optics at f/7.5 vs f/7.9
- Lighter (7.5kg vs 14kg) — easier to travel with
Best for — Stellarvue SVX152T
- Medium-sized galaxies and planetary nebulae
- Full-frame astro cameras and DSLRs
Best for — Takahashi TSA-120
- Medium-sized galaxies and planetary nebulae
- Full-frame astro cameras and DSLRs
Stellarvue SVX152T — typical FOV & scale
- With Full-frame (36×24mm, 3.76µm)FOV: 1.72° × 1.15°Scale: 0.65"/px
- With APS-C (23.5×15.7mm, 3.76µm)FOV: 1.12° × 0.75°Scale: 0.65"/px
- With IMX533 square (11.3×11.3mm, 3.76µm)FOV: 0.54° × 0.54°Scale: 0.65"/px
Takahashi TSA-120 — typical FOV & scale
- With Full-frame (36×24mm, 3.76µm)FOV: 2.29° × 1.53°Scale: 0.86"/px
- With APS-C (23.5×15.7mm, 3.76µm)FOV: 1.50° × 1.00°Scale: 0.86"/px
- With IMX533 square (11.3×11.3mm, 3.76µm)FOV: 0.72° × 0.72°Scale: 0.86"/px
Stellarvue SVX152T — recommended user
Best suited for intermediate imagers building a versatile kit running a permanent observatory setup.
Takahashi TSA-120 — recommended user
Best suited for intermediate imagers building a versatile kit running a backyard imaging setup.