Takahashi FOA-60: 60 mm f/8.8 fluorite telescope, tube only
Compatible FOA-60 lens, sold separately. This corrector is a separate photographic setup from the 1.7× extender; check the rings and the focus distance.
CHF 1'136.43
Takahashi field corrector for the FOA-60: effective focal length of 495 mm, corrected circle of 44 mm, and 50.8 mm slip-on mount.
CHF 265.40incl. Swiss VAT
Part Number TKA28582
Will be ordered for you
Delivery time: 5 to 7 business days
Estimated shipping: Between November 23 and 24, 2026
The TKA28582 corrector is designed specifically for the Takahashi FOA-60 telescope. It flattens the field and slightly reduces the focal length: the manufacturer specifies a change from 530 to 495 mm, with an aperture ratio of F/8.2 instead of F/8.8. The nominal magnification is 0.93×. These values describe the combination with the FOA-60 and do not reflect the corrector’s performance with all telescopes.
The lens design consists of two elements in two groups. The specified corrected image circle diameter is 44 mm. This information helps in selecting the photographic setup, but it alone does not guarantee the absence of vignetting throughout the entire system: the connections and sensor positioning must also be appropriate.
The mechanical movement uses a 50.8 mm (2-inch) barrel. The spec sheet lists a draw of 42 mm, a mechanical diameter of 56 mm, a mechanical length of 67 mm, and a weight of 205 g. The official diagram shows the position of the focal point behind the corrector; refer to it to identify the reference surface before determining the necessary rings.
The presence of an extender in a configuration affects the choice of optical components. This data sheet does not validate any combination of this corrector and an extender. For an FOA-60 already equipped with such an accessory, have the optical chain verified before installation rather than simply adding components. The compatibility listed here refers only to the corrector used with the FOA-60.
| Features | Value |
|---|---|
| Reference | TKA28582 |
| Instrument in question | Takahashi FOA-60 |
| Nominal factor | 0,93× |
| Focal Length with FOA-60 | 495 mm (f/8.2) |
| Corrected image circle | 44 mm |
| Optical package | Two lenses in two groups |
| Mechanical input | 50.8 mm (2 inches) diameter |
| Stated circulation | 42 mm |
| Mechanical diameter | 56 mm |
| Mechanical Length | 67 mm |
| Mass | 205 g |
Main reference identified. Detailed list of screws, fittings, or additional accessories not provided; do not infer anything from the photographs.
Here are a few accessories we've selected for this model, depending on your needs.
Compatible FOA-60 lens, sold separately. This corrector is a separate photographic setup from the 1.7× extender; check the rings and the focus distance.
