telescopecomparison · 2-way
Explore Scientific ED152 FCD-100 vs William Optics FLT 156
Explore Scientific
ED152 FCD-100
Best suited for intermediate imagers building a versatile kit running a permanent observatory setup.
William Optics
FLT 156
Best suited for intermediate imagers building a versatile kit running a backyard imaging setup.
Key differences
+5% focal length
Slower by 0.5 f-stops
Specifications
| Specification | Explore Scientific ED152 FCD-100 | William Optics FLT 156 |
|---|---|---|
| Optics | ||
| Type | refractor | refractor |
| Optical design | Apo triplet FCD-100 | Apo triplet FPL-53 |
| Aperture | 152mm | 156mm |
| Focal length | 1140mm | 1085mm |
| Native f/ratio | f/7.5 | f/7.0 |
| Image circle | 52mm | 52mm |
| Full-frame support | Yes | Yes |
| Physical | ||
| Weight | 12.0kg | 11.5kg |
Advantages of Explore Scientific ED152 FCD-100
Closely matched on the compared specs.
Advantages of William Optics FLT 156
- Faster optics at f/7 vs f/7.5
Best for — Explore Scientific ED152 FCD-100
- Medium-sized galaxies and planetary nebulae
- Full-frame astro cameras and DSLRs
Best for — William Optics FLT 156
- Medium-sized galaxies and planetary nebulae
- Full-frame astro cameras and DSLRs
Explore Scientific ED152 FCD-100 — typical FOV & scale
- With Full-frame (36×24mm, 3.76µm)FOV: 1.81° × 1.21°Scale: 0.68"/px
- With APS-C (23.5×15.7mm, 3.76µm)FOV: 1.18° × 0.79°Scale: 0.68"/px
- With IMX533 square (11.3×11.3mm, 3.76µm)FOV: 0.57° × 0.57°Scale: 0.68"/px
William Optics FLT 156 — typical FOV & scale
- With Full-frame (36×24mm, 3.76µm)FOV: 1.90° × 1.27°Scale: 0.71"/px
- With APS-C (23.5×15.7mm, 3.76µm)FOV: 1.24° × 0.83°Scale: 0.71"/px
- With IMX533 square (11.3×11.3mm, 3.76µm)FOV: 0.60° × 0.60°Scale: 0.71"/px
Explore Scientific ED152 FCD-100 — recommended user
Best suited for intermediate imagers building a versatile kit running a permanent observatory setup.
William Optics FLT 156 — recommended user
Best suited for intermediate imagers building a versatile kit running a backyard imaging setup.