PeterM
14-06-2007, 08:25 AM
Optec Nextgen F5 Focal Reducer/Corrector
One of the best FR available. In excellent condition, 6 months old.Specifically designed for correction of the field curvature and spherical-chromatism that afflicts Schmidt Cassegrain telescopes. See http://www.optecinc.com/optec_026.htm $300.00
One of the best FR available. In excellent condition, 6 months old.Specifically designed for correction of the field curvature and spherical-chromatism that afflicts Schmidt Cassegrain telescopes. See http://www.optecinc.com/optec_026.htm $300.00