telescopecomparison · 2-way
Explore Scientific ED127 FCD-100 vs SharpStar 140PH
Explore Scientific
ED127 FCD-100
Best suited for intermediate imagers building a versatile kit running a backyard imaging setup.
SharpStar
140PH
Best suited for intermediate imagers building a versatile kit running a backyard imaging setup.
Key differences
-9% aperture
Slower by 0.5 f-stops
Specifications
| Specification | Explore Scientific ED127 FCD-100 | SharpStar 140PH |
|---|---|---|
| Optics | ||
| Type | Refractor | refractor |
| Optical design | Triplet APO | Apo triplet FPL-53 |
| Aperture | 127mm | 140mm |
| Focal length | 952mm | 980mm |
| Native f/ratio | f/7.5 | f/7.0 |
| Image circle | 40mm | 52mm |
| Full-frame support | Yes | Yes |
| Physical | ||
| Weight | 8.6kg | 9.5kg |
Advantages of Explore Scientific ED127 FCD-100
Closely matched on the compared specs.
Advantages of SharpStar 140PH
- 10% more light-gathering aperture
- Faster optics at f/7 vs f/7.5
- Larger image circle (52mm) — supports bigger sensors
Best for — Explore Scientific ED127 FCD-100
- Medium-sized galaxies and planetary nebulae
- Full-frame astro cameras and DSLRs
Best for — SharpStar 140PH
- Medium-sized galaxies and planetary nebulae
- Full-frame astro cameras and DSLRs
Explore Scientific ED127 FCD-100 — typical FOV & scale
- With Full-frame (36×24mm, 3.76µm)FOV: 2.17° × 1.44°Scale: 0.81"/px
- With APS-C (23.5×15.7mm, 3.76µm)FOV: 1.41° × 0.94°Scale: 0.81"/px
- With IMX533 square (11.3×11.3mm, 3.76µm)FOV: 0.68° × 0.68°Scale: 0.81"/px
SharpStar 140PH — typical FOV & scale
- With Full-frame (36×24mm, 3.76µm)FOV: 2.10° × 1.40°Scale: 0.79"/px
- With APS-C (23.5×15.7mm, 3.76µm)FOV: 1.37° × 0.92°Scale: 0.79"/px
- With IMX533 square (11.3×11.3mm, 3.76µm)FOV: 0.66° × 0.66°Scale: 0.79"/px
Explore Scientific ED127 FCD-100 — recommended user
Best suited for intermediate imagers building a versatile kit running a backyard imaging setup.
SharpStar 140PH — recommended user
Best suited for intermediate imagers building a versatile kit running a backyard imaging setup.