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Condition: This is a used Lumicon giant easy-guider in good condition. The optics are relatively clean (there is a small defect near the edge of the optics) and there is minimal wear on the outer body. This is an older product, great for those looking for a collectors item!
Description:
The interior of the GIANT EASY-GUIDER has a 3.55" i.d. compartment for insertion of filters, or the removable 80mm clear aperture achromatic focal reducing lens. This lens has anti-reflection coatings and reduces the Celestron-14 focal ratio from f/10 to f/7.0.
This lens yields edge-to-edge pinpoint star images and full illumination. The 80mm lens can also be moved to the front of the guider to operate at f/5.5. With an extension tube, operation at f/4 becomes possible. Thus the f-ratio for both viewing and photography is adustable from f/4 to f/10 with the GIANT EASY-GUIDER. Knurled nylon thumbscrews are used throughout to avoid marring metal surfaces, and insure tight locking when tightened (they compress slightly).