telescope
Takahashi
FSQ-85EDX
85mm Petzval APO · 450mm f/5.3
Modified Petzval astrograph.
Best for
- Large emission nebulae and star clusters
- Full-frame astro cameras and DSLRs
Specifications
| Optics | |
| Type | Refractor |
| Optical design | Petzval APO |
| Aperture | 85mm |
| Focal length | 450mm |
| Native f/ratio | f/5.3 |
| Image circle | 44mm |
| Full-frame support | Yes |
| Physical | |
| Weight | 4.0kg |
Typical FOV & image scale
With Full-frame (36×24mm, 3.76µm)
FOV 4.58° × 3.06°
Scale 1.72″/px
With APS-C (23.5×15.7mm, 3.76µm)
FOV 2.99° × 2.00°
Scale 1.72″/px
With IMX533 square (11.3×11.3mm, 3.76µm)
FOV 1.44° × 1.44°
Scale 1.72″/px
Recommended accessories
- Takahashi FSQ-85 Reducer QE 0.73xreducer · 0.73× focal lengthmanufacturer supported
Typical targets
- IC IC 434 — Horsehead NebulaEmission Nebula · 60′
- NGC NGC 869/884 — Double ClusterOpen Cluster · 60′
- NGC NGC 2264 — Christmas Tree ClusterEmission Nebula · 60′
- NGC NGC 6992 — Eastern VeilSupernova Remnant · 60′
- NGC NGC 7822 — Cepheus HII RegionEmission Nebula · 60′
- Messier M48 — Open Cluster M48Open Cluster · 54′
Recommended cameras
28.4mm sensor · 4.78µm px · cooled
Compare pairing28.3mm sensor · 3.76µm px · cooled
Compare pairing28.3mm sensor · 3.76µm px · cooled
Compare pairing