 In late 2005 Celestron (which had recently been purchased by Synta Technology Corporation of Taiwan) announced an agreement that would allow Celestron 8, 9.25, and Schmidt-Cassegrain optical tube assemblies (OTA), painted in metallic gray and using the "Orion" brand (Celestron OTAs are painted either gloss black or semi-gloss matte orange), to be sold with Orion branded German equatorial mounts (also made by Synta) and eyepiece accessories.At the high performance end of their range, Orion has a series of two element apochromatic (apo) refractors manufactured by Synta featuring "extra low dispersion" fluorite crown glass in one element of the objective lens.These are marketed as the ED80 (80 mm or objective at f/7.5), ED100 (100mm or at f/9) and ED120 (120mm or at f/7.5).