September 10, 2010, Newsletter Issue #94: A Takahashi Astrograph Built For Speed
Tip of the Week
Looking for a fast exposure time? Try the Takahashi Hyperbolic Astrograph, a photographic telescope for the astrophotography enthusiast. This new 180mm aperture Takahashi Astrograph has a 500mm focal length and a focal ratio of f/2.8 - which translates into one speedy exposure time. The Takahashi Astrograph has a 44mm diameter, which makes it versatile enough to work with a full size 33mm CCD as well as a DSLR camera.
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