OTA · MSRP $895
Askar FRA400C
Key specifications
| Aperture | 72 mm |
|---|---|
| Focal length | 400 mm |
| Focal ratio | f/5.6 |
| Optical design | Other |
| Back focus | 55 mm |
| Weight | 2.68 kg |
All specifications
| Focuser type | Manual focus |
|---|---|
| Tube length | 370 mm |
About
A budget revision of the FRA400: a 72 mm f/5.6 quintuplet dual-ED air-spaced APO astrograph covering a 44 mm circle. A 17-blade iris stops it down to f/22 for daytime photography, and the rear takes M72, M54 or M48 adapters.