telescopecomparison · 2-way
SharpStar 61EDPH III vs SharpStar 94EDPH
SharpStar
61EDPH III
Best suited for beginners and wide-field enthusiasts running a portable travel rig.
SharpStar
94EDPH
Best suited for intermediate imagers building a versatile kit running a portable travel rig.
Key differences
-35% focal length
-35% aperture
Specifications
| Specification | SharpStar 61EDPH III | SharpStar 94EDPH |
|---|---|---|
| Optics | ||
| Type | Refractor | refractor |
| Optical design | Doublet APO | Apo triplet FPL-53 |
| Aperture | 61mm | 94mm |
| Focal length | 335mm | 518mm |
| Native f/ratio | f/5.5 | f/5.5 |
| Image circle | 32mm | 44mm |
| Full-frame support | No | Yes |
| Physical | ||
| Weight | 2.4kg | 4.5kg |
Advantages of SharpStar 61EDPH III
- Wider field — 335mm vs 518mm focal length
- Lighter (2.4kg vs 4.5kg) — easier to travel with
Advantages of SharpStar 94EDPH
- Tighter framing — 518mm vs 335mm focal length
- 54% more light-gathering aperture
- Larger image circle (44mm) — supports bigger sensors
Best for — SharpStar 61EDPH III
- Wide-field nebulae and Milky Way regions
Best for — SharpStar 94EDPH
- Large emission nebulae and star clusters
- Full-frame astro cameras and DSLRs
SharpStar 61EDPH III — typical FOV & scale
- With Full-frame (36×24mm, 3.76µm)FOV: 6.16° × 4.11°Scale: 2.32"/px
- With APS-C (23.5×15.7mm, 3.76µm)FOV: 4.02° × 2.69°Scale: 2.32"/px
- With IMX533 square (11.3×11.3mm, 3.76µm)FOV: 1.93° × 1.93°Scale: 2.32"/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
SharpStar 61EDPH III — 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.