Takahashi FOA-60Q fluorite apochromat complete version

€2,361.00
Availability: In stock
SKU:
TK-TFA06100

Takahashi FOA-60Q fluorite apochromat complete version with cradle, finder bracket and 6x30 optical finder. Optical system composed by the fluorite doublet apochromat with 60 mm objective lens and 530 mm focal length (F/8.83) along the Extender 1.7x R module that increase focal length to 900 mm (F/15). The most corrected of any Takahashi refractor!

Brands:

Takahashi FOA-60Q fluorite apochromat complete version with cradle, finder bracket and 6x30 optical finder. Optical system composed by the fluorite doublet apochromat with 60 mm objective lens and 530 mm focal length (F/8.83) along the Extender 1.7x R module that increase focal length to 900 mm (F/15). The most corrected of any Takahashi refractor!

Recently we have seen a spread of compact, short focal length refractors widely used for astroimaging. Unfortunately those instruments show poor performance when used in visual observations at high magnification. The Takahashi FOA-60 has been designed instead to deliver best performances both in visual and imaging.

The FOA acronym stands for Fluorite Ortho-Apochromat. Optical design of the FOA-60 includes a widely spaced apochromat doublet with front calcium fluoride lens and rear Crown capable to delivey a very high polychromatic Strehl Ratio of 96.1%. The wide lens spacing allows for a very high correction of spherochromatism.

FOA-60Q includes also the optional Extender 1.7x R that transforms the FOA-60 to a F/15 flat field apochromatic refractor with a polychromatic Strehl Ratio up to 99,8%! It is the highest value of the full Takahashi refractor lineup, even higher than the TOA design. This excellent performance is valid on the whole image circle of 44 mm and in the full visual spectrum from 436 nm to 656 nm. The use of the Extender 1.7x R allows also to keep the instrument very compact (645 mm only with dew shield fully retracted, 705 mm with dew shield fully extracted).

The Extender 1.7x R can be removed and you will have the FOA-60 apochromatic refractor doublet. Please see details in the dedicated page.

Takahashi, perfection exists!

Technical specifications

  • Diameter: 60 mm
  • Focal length: 900 mm (530 mm with Extender removed)
  • Focal ratio: F/15 (F/8.83 with Extender removed)
  • OTA length: 645 mm only with dew shield fully retracted, 710 mm with dew shield fully extracted.
  • 2" and 1.25" eyepiece holder included.
  • Complete version includes TKA02420G cradle, TKA00562 finder bracket and TKA00551 6x30 optical finder.
  • Weight: 2.4 Kg for the whole OTA, cradle, finder bracket and 6x30 optical finder included, 1.6 Kg for the OTA only.

More Information
Product Status New
Package width 28 cm
Package height 37 cm
Package depth 79 cm
Write Your Own Review
You're reviewing:Takahashi FOA-60Q fluorite apochromat complete version