telescopecomparison · 2-way
SharpStar 76EDPH vs William Optics GT 71
William Optics
GT 71
Best suited for beginners and wide-field enthusiasts running a portable travel rig.
Key differences
+7% aperture
Faster by 0.4 f-stops
Specifications
| Specification | SharpStar 76EDPH | William Optics GT 71 |
|---|---|---|
| Optics | ||
| Type | Refractor | refractor |
| Optical design | Doublet APO | Apo triplet FPL-53 |
| Aperture | 76mm | 71mm |
| Focal length | 418mm | 420mm |
| Native f/ratio | f/5.5 | f/5.9 |
| Image circle | 42mm | 44mm |
| Full-frame support | Yes | Yes |
| Physical | ||
| Weight | 3.2kg | 3.4kg |
Advantages of SharpStar 76EDPH
- Faster optics at f/5.5 vs f/5.9
Advantages of William Optics GT 71
Closely matched on the compared specs.
Best for — SharpStar 76EDPH
- Large emission nebulae and star clusters
- Full-frame astro cameras and DSLRs
Best for — William Optics GT 71
- Large emission nebulae and star clusters
- Full-frame astro cameras and DSLRs
SharpStar 76EDPH — typical FOV & scale
- With Full-frame (36×24mm, 3.76µm)FOV: 4.93° × 3.29°Scale: 1.86"/px
- With APS-C (23.5×15.7mm, 3.76µm)FOV: 3.22° × 2.15°Scale: 1.86"/px
- With IMX533 square (11.3×11.3mm, 3.76µm)FOV: 1.55° × 1.55°Scale: 1.86"/px
William Optics GT 71 — typical FOV & scale
- With Full-frame (36×24mm, 3.76µm)FOV: 4.91° × 3.27°Scale: 1.85"/px
- With APS-C (23.5×15.7mm, 3.76µm)FOV: 3.21° × 2.14°Scale: 1.85"/px
- With IMX533 square (11.3×11.3mm, 3.76µm)FOV: 1.54° × 1.54°Scale: 1.85"/px
SharpStar 76EDPH — recommended user
Best suited for beginners and wide-field enthusiasts running a portable travel rig.
William Optics GT 71 — recommended user
Best suited for beginners and wide-field enthusiasts running a portable travel rig.