Takahashi
FS-60 Series Refractor Telescope
- Regular price
- $ 810.00
- Sale price
- $ 810.00
- Unit price
- per
This item is a Special Order from the Manufacturer
In Stock
Special Order
Description
The FS series of apochromatic refracting telescopes from Takahashi provides a balance of high performance, compact size, and low cost. At its heart is a two-element fluorite lens set that provides outstanding performance for both visual and imaging applications. The FS series has a modular design that makes use of several reducers, extenders and flatterers to further enhance its capabilities and versatility.
FS-60CB
The FS-60CB is a 60mm refractor that employs a multi-coated, two element fluorite objective lens with a prime focal length of 355mm.
With the dedicated C0.72X reducer, the FS-60CB is converted to an f/4.2 instrument. The combination results in a 40mm diameter image circle with 60% illumination and star images within 20 microns across the entire field. Illumination is maintained at 95% or more out to a 25mm diameter, and is 72% illuminated out to a diameter of 35mm.
With the dedicated FS-60 flattener, the resulting field flatness is greatly improved out to the four corners of a full frame DSLR sensor. The resulting combination is an f/6.2, 374mm instrument with an image circle diameter of 44mm.
FS-60Q
By attaching the Extender-CQ1.7X, the FS-60CB is converted into an FS-60Q, a 600mm f/10 telescope consisting of one fluorite element, with a flat field across the image circle. This extender fits between the FS-60 objective and the focuser, creating a unique 4-element-in-2-groups apochromat that is physically shorter than conventional 60mm f/10 refractors.
Optical Tube Assembly only (reducers and flatteners, mount, tripod, tube holder and finder sold separately).
Specifications
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Telescope
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FS-60CB
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FS-60Q
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|
Part Number
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TSK06010
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TSK06110
|
|
Aperture
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60mm
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60 mm
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|
Resolution
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1.93"
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1.93"
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|
Limiting Magnitude
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10.7
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10.7
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Light Gathering Power
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73X
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73X
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Focal Length
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355 mm
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600 mm
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|
Focal Ratio
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f/5.9
Configurable to f/4.2, f/6.2, f/10
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f/10.0
Configurable to f/4.2, f/5.9, f/6.2
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|
Optical Type
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Fluorite Doublet Apochromat
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Fluorite Apochromat: 4 Elements in 3 Groups
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|
Tube Diameter
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80 mm
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80 mm
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Tube Length (With Lens hood retracted)
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440 mm
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550 mm
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|
Tube Weight
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1.4 kg
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1.6 kg
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|
Recommended Finder
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6x30
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6x30
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Metal Back Distance
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162.0 mm
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158.4 mm
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Telescope Specifications
FS-60CB Visual System Chart
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