telescope
William Optics
Pleiades 68
68mm Astrograph (7-element) · 260mm f/3.8
Fast 7-element astrograph for wide-field imaging.
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Product specifications can change. Please verify specifications and compatibility with the manufacturer or retailer before purchasing.
Best for
- Wide-field nebulae and Milky Way regions
- Fast imaging — short exposures per sub
- Full-frame astro cameras and DSLRs
Specifications
| Optics | |
| Type | astrograph |
| Optical design | Astrograph (7-element) |
| Aperture | 68mm |
| Focal length | 260mm |
| Native f/ratio | f/3.8 |
| Image circle | 48mm |
| Full-frame support | Yes |
| Physical | |
| Weight | 3.0kg |
Typical FOV & image scale
With Full-frame (36×24mm, 3.76µm)
FOV 7.93° × 5.29°
Scale 2.98″/px
With APS-C (23.5×15.7mm, 3.76µm)
FOV 5.18° × 3.46°
Scale 2.98″/px
With IMX533 square (11.3×11.3mm, 3.76µm)
FOV 2.49° × 2.49°
Scale 2.98″/px
Typical targets
- M45 — PleiadesReflection Nebula · 110′Plan this target
- NGC 7000 — North America NebulaEmission Nebula · 120′Plan this target
- IC 2177 — Seagull NebulaEmission Nebula · 120′Plan this target
- M44 — Beehive ClusterOpen Cluster · 95′Plan this target
- M8 — Lagoon NebulaEmission Nebula · 90′Plan this target
- M24 — Sagittarius Star CloudOpen Cluster · 90′Plan this target
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Source: williamoptics.com