telescope
Askar
107PHQ
107mm Petzval quintuplet FPL-51 · 749mm f/7.0
Full-frame quintuplet.
Best for
- Medium-sized galaxies and planetary nebulae
- Full-frame astro cameras and DSLRs
Specifications
| Optics | |
| Type | refractor |
| Optical design | Petzval quintuplet FPL-51 |
| Aperture | 107mm |
| Focal length | 749mm |
| Native f/ratio | f/7.0 |
| Image circle | 60mm |
| Full-frame support | Yes |
| Physical | |
| Weight | 7.5kg |
Typical FOV & image scale
With Full-frame (36×24mm, 3.76µm)
FOV 2.75° × 1.84°
Scale 1.04″/px
With APS-C (23.5×15.7mm, 3.76µm)
FOV 1.80° × 1.20°
Scale 1.04″/px
With IMX533 square (11.3×11.3mm, 3.76µm)
FOV 0.86° × 0.86°
Scale 1.04″/px
Recommended accessories
- Askar ASKAR 0.7x Reducer for 107PHQreducer · 0.7× focal lengthmanufacturer supported
Typical targets
- Messier M41 — Open Cluster M41Open Cluster · 38′
- IC IC 405 — Flaming Star NebulaEmission Nebula · 37′
- NGC NGC 5139 — Omega CentauriGlobular Cluster · 36′
- NGC NGC 2070 — Tarantula NebulaEmission Nebula · 40′
- NGC NGC 6334 — Cat's Paw NebulaEmission Nebula · 40′
- NGC NGC 6820 — Emission Nebula NGC 6820Emission Nebula · 40′
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