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Takahashi FS-60Q Fluorite Quad

Takahashi has now developed a 1.7x module for the FS-60CB and it is called the FS-60Q. The Q is for the four elements that make up the optical train. The quadruple elements that make up the Q are the doublet fluorite objective and the two-element 1.7x CQ module.

The FS-60Q includes the factory installed CQ [1.7x] module to produce a 600mm fl, f/10 system. This new configuration offers the longer focal length, a flatter field across a 35mmø circle that is 95% illuminated.

This instrument is a great eclipse scope. The 600mm focal length offers a good sized image on the sensor or film in an extremely portable package. This instrument can be easily carried by the Takahashi Teegul Sky Patrol III mount. The telescope, mount and digital SLR camera can fit in a carry on bag for convenience and security.

With the CQ module removed the FS-60Q becomes the FS-60C which can be used at the native 355mm, reduced to f/4.2 at 255mm or flattened to f/6.2 at 370mm for imaging or wide field viewing.  The FS-60Q can be used to image solar or lunar eclipses at 600mm for a 6mm image on the sensor or at 370mm or 255mm for wide field images.



The FS-60Q is a new version of the FS-60CB. The FS-60Q includes a module which contains a 1.7x extender, which changes the FS-60Q to a 600mm focal length f/10 instrument. This module is offered separately and is compatible with any FS-60C ever made to covert it to the Q when the 1.7x module is attached. This conversion is as simple removing the white tube from the focuser, attaching the 1.7x module to the focuser and then attaching the section with the objective in it to the 1.7x module.

The in-place extender flattens the image to a 44mmø circle with 96% illumination to allow imaging the Moon, planets or a solar eclipse. The larger image scale of the 60mm focal length allows prominences and the corona to be more easily seen or imaged with a digital SLR. Used with the Extender-Q the FS-60Q becomes an f/16 960mm telescope that will be able to view some of the smaller lunar craters and produce a 9mm lunar image on a sensor from its 40mmø image circle.

The 1.7x CQ module can be easily removed which will convert the FS-60Q to an FS-60CB f/5.9. Now the dedicated reducer [.72x] f/4.2 and dedicated flattener can be used to image at f/6.2 for flat field or wide field imaging. Now, the F/5.9 FC-60CB can be used for wide field observing.  Further, the 1.7x CQ module is sold separately for the owners of FS-60C, CSV’s and CB’s which converts them into the FS-60Q with all of the benefits the module enables, as mentioned previously.

Versatility is that word that best describes the FS-60Q modular telescope. Converts from an f/10 600mm focal length instrument to an f/5.9 354mm wide field instrument that can be used to image at f/6.2 using the dedicated flattener or to f/4.2 with the dedicated reducer. Both devices providing a 44mmø image circle which will cover an APS size chip or used at f/10 with a 44mmø flat field 95% illuminated to narrow field imaging; or extended with the Extender-Q to 960mm for lunar, nature or eclipse imaging at f/16 with a 40mmø image circle.  This is perfect for eclipse chasing.


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


Type:  Fluorite 2 + 2
Effective aperture:  60mmø
Focal length:  600mm
Focal ratio:  f/10
Tube diameter:  80mmø
Tube length 407mm [16.02”] ↔ [FS-60Q]
280mm [11.02”] ↔ [FS-60CB]

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