telescopecomparison · 2-way
Astro-Tech AT8RC vs Stellarvue SVX130T
Stellarvue
SVX130T
Best suited for intermediate imagers building a versatile kit running a backyard imaging setup.
Key differences
+78% focal length
+56% aperture
Slower by 1.0 f-stops
Specifications
| Specification | Astro-Tech AT8RC | Stellarvue SVX130T |
|---|---|---|
| Optics | ||
| Type | RC | Refractor |
| Optical design | Ritchey-Chrétien | Triplet APO |
| Aperture | 203mm | 130mm |
| Focal length | 1624mm | 910mm |
| Native f/ratio | f/8.0 | f/7.0 |
| Image circle | 42mm | 60mm |
| Full-frame support | Yes | Yes |
| Physical | ||
| Weight | 10.0kg | 10.0kg |
Advantages of Astro-Tech AT8RC
- Tighter framing — 1624mm vs 910mm focal length
- 56% more light-gathering aperture
Advantages of Stellarvue SVX130T
- Wider field — 910mm vs 1624mm focal length
- Faster optics at f/7 vs f/8
- Larger image circle (60mm) — supports bigger sensors
Best for — Astro-Tech AT8RC
- Small galaxies, planetary nebulae, lunar & planetary detail
- High-resolution long-exposure work
- Faint-object imaging under dark skies
- Full-frame astro cameras and DSLRs
Best for — Stellarvue SVX130T
- Medium-sized galaxies and planetary nebulae
- Full-frame astro cameras and DSLRs
Astro-Tech AT8RC — typical FOV & scale
- With Full-frame (36×24mm, 3.76µm)FOV: 1.27° × 0.85°Scale: 0.48"/px
- With APS-C (23.5×15.7mm, 3.76µm)FOV: 0.83° × 0.55°Scale: 0.48"/px
- With IMX533 square (11.3×11.3mm, 3.76µm)FOV: 0.40° × 0.40°Scale: 0.48"/px
Stellarvue SVX130T — typical FOV & scale
- With Full-frame (36×24mm, 3.76µm)FOV: 2.27° × 1.51°Scale: 0.85"/px
- With APS-C (23.5×15.7mm, 3.76µm)FOV: 1.48° × 0.99°Scale: 0.85"/px
- With IMX533 square (11.3×11.3mm, 3.76µm)FOV: 0.71° × 0.71°Scale: 0.85"/px
Astro-Tech AT8RC — recommended user
Best suited for experienced imagers chasing detail running a backyard imaging setup.
Stellarvue SVX130T — recommended user
Best suited for intermediate imagers building a versatile kit running a backyard imaging setup.