Takahashi FSQ Series
The Takahashi 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.
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