telescope
SharpStar
61EDPH III
61mm Doublet APO · 335mm f/5.5
Compact doublet astrograph; APS-C class.
Best for
- Wide-field nebulae and Milky Way regions
Specifications
| Optics | |
| Type | Refractor |
| Optical design | Doublet APO |
| Aperture | 61mm |
| Focal length | 335mm |
| Native f/ratio | f/5.5 |
| Image circle | 32mm |
| Full-frame support | No |
| Physical | |
| Weight | 2.4kg |
Typical FOV & image 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
Recommended accessories
- SharpStar 0.8x Reducer for 61EDPH IIIreducer · 0.8× focal lengthmanufacturer supported
Typical targets
- Messier M42 — Orion NebulaEmission Nebula · 85′
- IC IC 5070 — Pelican NebulaEmission Nebula · 80′
- NGC NGC 2237 — Rosette NebulaEmission Nebula · 80′
- Messier M7 — Ptolemy's ClusterOpen Cluster · 80′
- Messier M8 — Lagoon NebulaEmission Nebula · 90′
- Messier M24 — Sagittarius Star CloudOpen Cluster · 90′
Recommended cameras
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