The Takahashi FS-60CB refractor is the ultimate mobile instrument. It combines first-class optical and mechanical qualities with outstanding compactness.
It can easily be used for astronomical or terrestrial observation. Photographers will transform it into a wide field astrograph or a guiding instrument. A focal reducer (F/4.2) and a field corrector (FL-FS-60C or multi-flattener FC/FS MFL1.04X) are available as options for this purpose. A 1.7x extender (F/10) allows the refractor to be upgraded to the so-called FS-60Q version. A wide range of accessories adapts the FS-60 to your specific needs.
The FS-60CB's main advantage is its air-spaced apochromatic fluorite doublet, manufactured with the same care as all the Takahashi larger diameter telescopes. Performances will surprise many a purist. Takahashi's mechanical excellence makes the FS-60CB one of the best refractors of this diameter available on the market. Lightweight and compact, the FS-60CB will delight all observers with its versatility.
Characteristics
Takahashi FS-60CB refractor
Characteristics
Takahashi FS-60CB refractor
Objective
Fluorite doublet apochromat
Lens cell
Air-spaced doublet. Fluorite on the front
Coatings
Hard multicoatings
Diameter
60 mm
At prime focus
Focal length
355 mm
Focal ratio
F/5.9
Metal Back Distance
162 mm
With FL-FS-60C field corrector
Focal length
370 mm
OFocal ratio
F/6.2
Image circle diameter
45 mm
Metal Back Distance
56.2 mm
With FC/FS MFL1.04X field corrector
Focal length
370 mm
Focal ratio
F/6.2
Image circle diameter
45 mm
Metal Back Distance
56.2 mm
With RD-C0.72X focal reducer
Focal length
255 mm
Focal ratio
F/4.2
Image circle diameter
40 mm
Metal Back Distance
56.2 mm
With EX-CQ1.7X focal extender (FS-60Q)
Focal length
600 mm
Focal ratio
F/10
Metal Back Distance
158.4 mm
Takahashi FS-60CB refractor
Characteristics
Takahashi FS-60CB refractor
Length of the optical tube
440 mm
Diameter of the optical tube
80 mm
Diameter of the dew shield
80 mm
Weight
1.4 kg
Focuser
Rack-and-pinion
The spot-diagrams of the FS-60CB clearly show the excellent chromatic correction at the primary focus, ensured by the fluorite doublet lens, and the good performance of the diffraction task, even at more than 14 mm from the optical axis. We should also note the major role of the optional corrector in restoring the flatness of the field for wide field photographic use. It allows unrestricted use of the latest CCD cameras and digital cameras.