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Transparency ............................................................................................................................................ 33
Sky Illumination....................................................................................................................................... 33
Seeing....................................................................................................................................................... 34
Using the Lens Cap Aperture Stop with Refractor Telescopes ................................................................ 34
ASTROPHOTOGRAPHY........................................................................................................................................... 35
Piggyback Photography............................................................................................................................ 35
Short Exposure Prime Focus Photography for Refractors & Newtonians................................................ 36
Short Exposure Prime Focus Photography for Schmidt-Cassegrains....................................................... 36
Eyepiece Projection for a Schmidt-Cassegrain......................................................................................... 37
Long Exposure Prime Focus Photography ............................................................................................... 38
Planetary and Lunar Photography with Special Imagers.......................................................................... 39
CCD Imaging for Deep Sky Objects........................................................................................................ 40
Terrestrial Photography............................................................................................................................ 40
Metering ................................................................................................................................................... 40
Reducing Vibration .................................................................................................................................. 40
TELESCOPE MAINTENANCE................................................................................................................................. 41
Care and Cleaning of the Optics............................................................................................................... 41
Collimation of Refractors......................................................................................................................... 41
Collimation of a Schmidt-Cassegrain....................................................................................................... 42
Collimation of a Newtonian ..................................................................................................................... 44
OPTIONAL ACCESSORIES...................................................................................................................................... 48
APPENDIX A - TECHNICAL SPECIFICATIONS...................................................................................................51
APPENDIX B - GLOSSARY OF TERMS.................................................................................................................. 52
SKY MAPS.................................................................................................................................................................... 55
CELESTRON TWO YEAR WARRANTY ................................................................................................................ 61