Takahashi - FSQ-106Q In Stock

The FSQ-106 is a state-of-the-art fluorite refractor that sets a new standard for innovation and
color correction. It is excellent as a astrograph, not exhibiting inherent problems with field
curvature and astigmatism. Takahashi’s modified Petzval design employs two widely separated rear
elements to correct field curvature and astigmatism to produce a flat field, high contrast image
without any hint of lateral color. This design produces an amazing 88mm image circle that will
fully illuminate a 35, 645, or 6x7 medium format camera and vacuum back roll film holders.

The 4” apo refractor, has a built-in camera angle adjuster that permits 360° rotation of the
camera, making the FSQ-106 the perfect astrograph. In fact, this outstanding instrument can be
used with a 4x5 vacuum back camera! The exceptionally large image circle will permit the use of
any CCD camera. The double fluorite design which forms an image free of any secondary color will
produce exceptionally sharp, high contrast views of deep sky objects or total eclipses.

SPECIFICATIONS for the FSQ-106  (Tube assembly only)

Effective aperture 	Ø106mm
Focal Length 	530mm - 850 w/Extender-Q
Focal Ratio 	F/5.0 - F/8.0 w/Extender-Q
Light Grasp 	229x
Resolution 	1.10”
Limiting Magnitude 	11.9
Image Circle 	Ø88mm - Ø44mm w/Extender-Q
Photographic Field 	8.5° - 3° w/Extender-Q
Total Length of Main Tube 	558mm
Diameter of Main Tube 	Ø114mm
Total weight of Main Tube 	6kg (13.2lbs)
Finder Scope 	7x50