telescopecomparison · 2-way
Astro-Tech AT115EDT vs Astro-Tech AT130EDT
Astro-Tech
AT115EDT
Best suited for intermediate imagers building a versatile kit running a backyard imaging setup.
Astro-Tech
AT130EDT
Best suited for intermediate imagers building a versatile kit running a backyard imaging setup.
Key differences
-12% focal length
-12% aperture
Specifications
| Specification | Astro-Tech AT115EDT | Astro-Tech AT130EDT |
|---|---|---|
| Optics | ||
| Type | refractor | refractor |
| Optical design | Apo triplet FPL-53 | Apo triplet FPL-53 |
| Aperture | 115mm | 130mm |
| Focal length | 805mm | 910mm |
| Native f/ratio | f/7.0 | f/7.0 |
| Image circle | 52mm | 52mm |
| Full-frame support | Yes | Yes |
| Physical | ||
| Weight | 6.6kg | 7.7kg |
Advantages of Astro-Tech AT115EDT
- Wider field — 805mm vs 910mm focal length
Advantages of Astro-Tech AT130EDT
- Tighter framing — 910mm vs 805mm focal length
- 13% more light-gathering aperture
Best for — Astro-Tech AT115EDT
- Medium-sized galaxies and planetary nebulae
- Full-frame astro cameras and DSLRs
Best for — Astro-Tech AT130EDT
- Medium-sized galaxies and planetary nebulae
- Full-frame astro cameras and DSLRs
Astro-Tech AT115EDT — typical FOV & scale
- With Full-frame (36×24mm, 3.76µm)FOV: 2.56° × 1.71°Scale: 0.96"/px
- With APS-C (23.5×15.7mm, 3.76µm)FOV: 1.67° × 1.12°Scale: 0.96"/px
- With IMX533 square (11.3×11.3mm, 3.76µm)FOV: 0.80° × 0.80°Scale: 0.96"/px
Astro-Tech AT130EDT — 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 AT115EDT — recommended user
Best suited for intermediate imagers building a versatile kit running a backyard imaging setup.
Astro-Tech AT130EDT — recommended user
Best suited for intermediate imagers building a versatile kit running a backyard imaging setup.