camera
OM System
OM-1 II
4/3" · 5184×3888 · Color
Micro Four Thirds mirrorless.
Best for
- Longer focal lengths — tighter framing on small targets
- Well-sampled deep-sky at medium focal lengths
- One-shot color — quick results, less processing
Specifications
| Sensor | |
| Type | dslr |
| Sensor | OM System 4/3 stacked BSI |
| Sensor tech | CMOS |
| Format | 4/3" |
| Sensor size | 17.4×13.0mm |
| Diagonal | 21.8mm |
| Pixel size | 3.35µm |
| Resolution | 5184×3888 |
| Megapixels | 20.1MP |
| Color | Yes |
| Cooling & performance | |
| Cooled | No |
| Full well | — |
| Peak QE | — |
Typical FOV & image scale
On 250mm refractor (wide)
FOV 3.99° × 2.98°
Scale 2.76″/px
On 800mm SCT reducer
FOV 1.25° × 0.93°
Scale 0.86″/px
On 2000mm SCT native
FOV 0.50° × 0.37°
Scale 0.35″/px
Typical targets
- NGC 2070 — Tarantula NebulaEmission Nebula · 40′Plan this target
- NGC 6334 — Cat's Paw NebulaEmission Nebula · 40′Plan this target
- NGC 6820 — Emission Nebula NGC 6820Emission Nebula · 40′Plan this target
- IC 410 — Tadpoles NebulaEmission Nebula · 40′Plan this target
- B142-143 — Barnard's EDark Nebula · 40′Plan this target
- NGC 1893 — Emission Nebula NGC 1893Emission Nebula · 45′Plan this target
