Get from Amazon : http://www.amazon.com/gp/product/B00DDX508I?tag=wayofcats-20 <br /> <br />William Optics ZenithStar 71mm f/5.9 Doublet ED Refractor Z71A <br /> <br />The ZenithStar 71 is great for visual observation and basic astro photography <br />Equipped with a smooth 2 Rack Pinion 110 Dual Speed Fine Focuser the ZenithStar 71 easily dial <br />Ideal for astrophotography the enhanced rack and pinion focuser locks to hold your camera securely <br />The doublet ED lens is fully multi coated and made with imported Japanese Ohara ED glass <br />Each doublet air spaced lens set is housed in a CNC machined cell :