The Takahashi FS-60Q apochromatic refractor is a longer focal length version of the FS-60CB. It is in fact the same telescope to which is added the Extender 1.7X kit which allows to change the FS-60CB to F/D 10, by making it evolve towards a formula with 4 lenses offering a flat field on the whole image circle.
The longer F/D ratio allows optimal chromatic correction for unforgettable planetary observations or for eclipse photography. It is quite possible to remove the 1.7X extender and switch from an FS-60Q to an FS-60CB, at F/5.9 more suitable for deep sky imaging. The same refractor allows you to quickly change from a 600 mm focal length to a 355 mm focal length according to your needs.
| Characteristic | Takahashi FS-60Q refractor |
| Objective | Fluorite doublet apochromat |
| Lens cell | Air-spaced doublet. Fluorite in the front |
| Coatings | Hard multicoatings |
| Diameter | 60 mm |
| At prime focus, with EX-CQ1.7X focal extender | |
| Focal length | 600 mm |
| Focal ratio | F/10 |
| Metal back distance | 158.4 mm |
| At prime focus | |
| Focal length | 355 mm |
| Focal ratio | F/5.9 |
| Metal Back Distance | 162 mm |
| Characteristic | Takahashi FS-60Q refractor |
| Length of the optical tube | 550 mm |
| Diameter of the optical tube | 80 mm |
| Diameter of the dew shield | 80 mm |
| Weight | 1.6 kg |
| Focuser | Rack-and-pinion |
Spot-diagram of Takahashi FS-60Q refractor at prime focus
| System-chart of Takahashi FS-60Q refractor | Télécharger |
| Instruction manual of Takahashi FS-60Q telescope | Télécharger |
