The ASKAR FRA600/5.6 astrograph user manual provides specifications, safety warnings, setup instructions, and connection diagrams for this 108 mm aperture…
This manual introduces the ASKAR FRA600/5.6 astrograph, a 108 mm aperture, f/5.6 refractor designed for astrophotography and visual observation. It includes safety warnings, especially the prohibition of direct solar observation without a proper solar filter.
The guide details the telescope’s optical layout, focuser features, adapter threads, packaging contents, and key dimensions such as a 493 mm overall length and a 66 mm image circle. Technical specifications and connection diagrams are provided to help users set up and operate the instrument safely and efficiently. This manual is written in Chinese.
| Aperture | 108 mm |
|---|---|
| Focal length | 600 mm |
| Objective type | Quintuplet flat‑field APO (including two ED elements) |
| Image circle | 66 mm |
| Back focus | 160 mm |
| Overall length (dew‑shield retracted) | 493 mm |
| Tube weight | 6.5 kg |
No, you must not look at the sun through the telescope; a dedicated solar filter is required.
The telescope has a 108 mm aperture.
The overall length is 493 mm with the dew‑shield retracted.