telescope
Vixen
SD103S
103mm Apo doublet SD · 795mm f/7.7
SD doublet apo.
Best for
- Medium-sized galaxies and planetary nebulae
- Full-frame astro cameras and DSLRs
Specifications
| Optics | |
| Type | refractor |
| Optical design | Apo doublet SD |
| Aperture | 103mm |
| Focal length | 795mm |
| Native f/ratio | f/7.7 |
| Image circle | 44mm |
| Full-frame support | Yes |
| Physical | |
| Weight | 4.0kg |
Typical FOV & image scale
With Full-frame (36×24mm, 3.76µm)
FOV 2.59° × 1.73°
Scale 0.98″/px
With APS-C (23.5×15.7mm, 3.76µm)
FOV 1.69° × 1.13°
Scale 0.98″/px
With IMX533 square (11.3×11.3mm, 3.76µm)
FOV 0.81° × 0.81°
Scale 0.98″/px
Typical targets
- NGC NGC 5139 — Omega CentauriGlobular Cluster · 36′
- Messier M16 — Eagle NebulaEmission Nebula · 35′
- NGC NGC 281 — Pacman NebulaEmission Nebula · 35′
- Messier M34 — Open Cluster M34Open Cluster · 35′
- IC IC 405 — Flaming Star NebulaEmission Nebula · 37′
- Messier M41 — Open Cluster M41Open Cluster · 38′
Recommended cameras
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Compare pairing28.3mm sensor · 3.76µm px · cooled
Compare pairing