Takahashi - FSQ-106ED "New Q" APO Refractor on EM-200 USD III Mount 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 	�106mm
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 	�88mm - �44mm w/Extender-Q
Photographic Field 	8.5° - 3° w/Extender-Q
Total Length of Main Tube 	558mm
Diameter of Main Tube 	�114mm
Total weight of Main Tube 	6kg (13.2lbs)
Finder Scope 	7x50