telescopecomparison · 2-way
Astro-Tech AT12RC vs Astro-Tech AT10RC
Astro-Tech
AT12RC
Best suited for experienced imagers chasing detail running a permanent observatory setup.
Astro-Tech
AT10RC
Best suited for experienced imagers chasing detail running a permanent observatory setup.
Key differences
+22% focal length
+20% aperture
Specifications
| Specification | Astro-Tech AT12RC | Astro-Tech AT10RC |
|---|---|---|
| Optics | ||
| Type | ritchey-chretien | ritchey-chretien |
| Optical design | Truss Ritchey-Chrétien | Truss Ritchey-Chrétien |
| Aperture | 305mm | 254mm |
| Focal length | 2432mm | 2000mm |
| Native f/ratio | f/8.0 | f/8.0 |
| Image circle | — | — |
| Full-frame support | Yes | Yes |
| Physical | ||
| Weight | 26.5kg | 17.7kg |
Advantages of Astro-Tech AT12RC
- Tighter framing — 2432mm vs 2000mm focal length
- 20% more light-gathering aperture
Advantages of Astro-Tech AT10RC
- Wider field — 2000mm vs 2432mm focal length
- Lighter (17.7kg vs 26.5kg) — easier to travel with
Best for — Astro-Tech AT12RC
- 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 — Astro-Tech AT10RC
- Small galaxies, planetary nebulae, lunar & planetary detail
- High-resolution long-exposure work
- Faint-object imaging under dark skies
- Full-frame astro cameras and DSLRs
Astro-Tech AT12RC — 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: 0.55° × 0.37°Scale: 0.32"/px
- With IMX533 square (11.3×11.3mm, 3.76µm)FOV: 0.27° × 0.27°Scale: 0.32"/px
Astro-Tech AT10RC — typical FOV & scale
- With Full-frame (36×24mm, 3.76µm)FOV: 1.03° × 0.69°Scale: 0.39"/px
- With APS-C (23.5×15.7mm, 3.76µm)FOV: 0.67° × 0.45°Scale: 0.39"/px
- With IMX533 square (11.3×11.3mm, 3.76µm)FOV: 0.32° × 0.32°Scale: 0.39"/px
Astro-Tech AT12RC — recommended user
Best suited for experienced imagers chasing detail running a permanent observatory setup.
Astro-Tech AT10RC — recommended user
Best suited for experienced imagers chasing detail running a permanent observatory setup.