Profile: Astro-Physics, Inc. develops telescopes and accessories for the advanced amateur. We now offer a wide range of precision telescopes and mountings, all with outstanding performance for a variety of observing needs. Our mountings are designed for solid stability under a variety of observing conditions. We also offer several models with the EDFS designation that incorporate the 2.7" focuser. These refractors are for those amateurs who desire the ultimate portable, versatile refractors, but who do not require the larger focuser.