FSQ-106ED
Bonus
Takahashi FSQ-106ED specifications
Optical specifications
| Spec. | FSQ-106ED |
|---|---|
| Optical design | Modified Petzval quadruplet apochromat |
| Aperture | 106 mm |
| Standard | |
| Focal length | 530 mm |
| Focal ratio | F/5.0 |
| Resolution | 1.09" |
| Limiting magnitude | 11.8 |
| Light grasp | 220x |
| Image circle | 88 mm |
| Photo field | 9.5° |
| Back focus | 186.38 mm |
| Metal back | 178 mm |
| With Extender-Q 1.6x | |
| Focal length | 850mm |
| Focal ratio | F/8 |
| Image circle | 44 mm |
| Photo field | 3° |
| Metal back | 117.5 mm |
| With QE-Reducer | |
| Focal length | 385mm |
| Focal ratio | F/3.6 |
| Image circle | 44mm |
| Photo field | 6.5° |
| Metal back | 72.2 mm |
Mecanical specifications
Longitudinal view (distance in mm)
| Spec. | FSQ-106ED |
|---|---|
| Tube length (mini/maxi) | 580mm/675mm (with standard accessories) |
| Tube diameter | 125mm |
| Tube weight | 7 kg |