FS-60 Series Refractor Telescope
FS-60 Series Refractor Telescope
FS-60 Series Refractor Telescope
FS-60 Series Refractor Telescope

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Takahashi

FS-60 Series Refractor Telescope

Regular price
$ 1,040.00
Sale price
$ 1,040.00
Unit price
per 

This item is a Special Order from the Manufacturer

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.

FS-60CB Extender C0.72X reducer spot diagram

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-60CB Flattener spot diagram

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.

FS-60Q Spot diagram

Optical Tube Assembly only (reducers and flatteners, mount, tripod, tube holder and finder sold separately)

Specifications

Telescope
FS-60CB
FS-60Q
 Part Number
TSK06010
TSK06110
Aperture
60mm
60 mm
Resolution
1.93"
1.93"
Limiting Magnitude
10.7
10.7
Light Gathering Power
73X
73X
Focal Length
355 mm
600 mm
Focal Ratio
f/5.9
Configurable to f/4.2, f/6.2, f/10
f/10.0
Configurable to f/4.2, f/5.9, f/6.2
Optical Type
Fluorite Doublet Apochromat
Fluorite Apochromat: 4 Elements in 3 Groups
Tube Diameter
80 mm
80 mm
Tube Length (With Lens hood retracted)
440 mm
550 mm
Tube Weight
1.4 kg
1.6 kg
Recommended Finder
6x30
6x30
Metal Back Distance
162.0 mm
158.4 mm

 

Telescope Specifications 
FS-60CB Visual System Chart

FS-60CB Extender-Q System Chart

FS-60CB Extender C2X System Chart

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