Celestron CGX Equatorial 800 HD Telescopes Whitepaper EdgeHD Optics - Page 22

Celestron EdgeHD 0.7× Reducer Celestron EdgeHD 0.7× Reducer Large T-Adapter T-Ring Adapter Digital SLR EdgeHD 1100 and 1400 5.75 inches 146.05±0.5 mm 0.7× Reducer Large T-Adapter T-system Spacer CCD Camera The matrix spot diagrams show that the bulk of rays cluster tightly in or near the Airy disk, with a diffuse scatter most strongly seen in the red light. Plotted at the same scale as those for the EdgeHD, the spots demonstrate that the focal reducer's star images are even smaller than those of the telescopes. For observers who wish to pursue faint nebulae in RGB or in narrowband, the 0.7× Focal Reducer is a valuable accessory that halves the necessary exposure time with no sacrifice in resolution or image quality. 22 I The Celestron EdgeHD