telescopecomparison · 2-way
Borg 90FL vs SharpStar 94EDPH
SharpStar
94EDPH
Best suited for intermediate imagers building a versatile kit running a portable travel rig.
Specifications
| Specification | Borg 90FL | SharpStar 94EDPH |
|---|---|---|
| Optics | ||
| Type | refractor | refractor |
| Optical design | Apo doublet fluorite | Apo triplet FPL-53 |
| Aperture | 90mm | 94mm |
| Focal length | 500mm | 518mm |
| Native f/ratio | f/5.6 | f/5.5 |
| Image circle | — | 44mm |
| Full-frame support | No | Yes |
| Physical | ||
| Weight | 2.5kg | 4.5kg |
Advantages of Borg 90FL
- Lighter (2.5kg vs 4.5kg) — easier to travel with
Advantages of SharpStar 94EDPH
- Larger image circle (44mm) — supports bigger sensors
Best for — Borg 90FL
- Large emission nebulae and star clusters
Best for — SharpStar 94EDPH
- Large emission nebulae and star clusters
- Full-frame astro cameras and DSLRs
Borg 90FL — typical FOV & scale
- With Full-frame (36×24mm, 3.76µm)FOV: 4.13° × 2.75°Scale: 1.55"/px
- With APS-C (23.5×15.7mm, 3.76µm)FOV: 2.69° × 1.80°Scale: 1.55"/px
- With IMX533 square (11.3×11.3mm, 3.76µm)FOV: 1.29° × 1.29°Scale: 1.55"/px
SharpStar 94EDPH — typical FOV & scale
- With Full-frame (36×24mm, 3.76µm)FOV: 3.98° × 2.65°Scale: 1.50"/px
- With APS-C (23.5×15.7mm, 3.76µm)FOV: 2.60° × 1.74°Scale: 1.50"/px
- With IMX533 square (11.3×11.3mm, 3.76µm)FOV: 1.25° × 1.25°Scale: 1.50"/px
Borg 90FL — recommended user
Best suited for beginners and wide-field enthusiasts running a portable travel rig.
SharpStar 94EDPH — recommended user
Best suited for intermediate imagers building a versatile kit running a portable travel rig.