Celestron CPC DELUXE 1100 HD, Instruction Manual

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22 I The Celestron EdgeHD
Celestron EdgeHD 0.7× Reducer
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.
5.75 inches
146.05±0.5 mm
EdgeHD
1100 and
1400
Large T-Adapter
T-Ring Adapter
Digital SLR
Large T-Adapter
T-system Spacer
CCD Camera
0.7× Reducer