Astronomy Technologies Illuminated Multiple Reticle Finderscope with Base and Shoe ATF
by Astronomy Technologies
Date first available at Amazon.com: July 8, 2011
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Review & Description
The Astro-Tech #ATF multiple reticle finder is a single-power illuminated multiple reticle red-dot finder for astronomy and daylight terrestrial use. The lightweight and compact Astro-Tech finder features a precision ground reflex lens viewing window with minimal parallax; four different reticle patterns; seven brightness levels; and a two-part mounting base for installing the finder on a variety of telescopes.
Any of four different reticle patterns can be selected by a lever at the rear of the finder. They include a single dot, such as that found in most traditional red dot finders; a plain crosshair; a circle with four short bars that extend out from the edges of the circle; and a dot within a circle. The reticle patterns are projected on a multicoated optical glass viewing window that's roughly the proportions and shape (but not the actual size!) of a 16 x 9 HDTV screen. When the sky is viewed through the window, the red reticle appears to be superimposed on the sky or daytime landscape. You can choose the reticle pattern that best suits your viewing style and personal preferences. The actual projected reticles can be seen in the feature image below. A rubber cover is supplied to slip over the glass screen to protect its premium coatings when the scope is not in use.
The Astro-Tech finder is CNC-machined from solid aluminum for strength and durability, rather than being molded of fragile plastic, as are most red-dot finders. The finder is anodized a non-reflective matte black. The finder's matte black dovetail base is also CNC-machined from aluminum stock.
The supplied two-piece finder base can be used in either of two ways. The mounting stalk by itself is 13.5mm wide and will fit into the finder mounting bracket provided with most larger Astro-Tech and TMB refractors and into the Antares quick release finderscope bracket, as well as into most other brands of quick release bracket shoes. Product Details
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