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The HyperStar Lens Assembly allows CCD imaging at f/2.1 with compatible Celestron 
8” HD Schmidt-Cassegrain telescopes and compatible CCD cameras.  These instructions 
show   the   proper  methods   for  installing   the   HyperStar   lens   and  CCD   camera   on   the 
telescope, and for collimating the lens for the best optical performance.

For more details on CCD imaging, visit www.starizona.com and see the 

Guide to CCD 

Imaging

.

Warning:

   

When the HyperStar lens and CCD camera are mounted on the telescope,  

there is the potential for damaging the corrector plate if caution is not exercised at all  
times.  Be especially careful not to bump the CCD camera or HyperStar lens while they  
are attached to the telescope.  Also, be sure that all cables from the CCD camera are  
properly tied off to prevent them from pulling on the camera and lens.  Additional tips  
and warnings are clearly marked throughout the assembly instructions.  As long as care  
is used, no problems will occur.

Parts List

The HyperStar Lens Assembly includes two pieces:

HyperStar Lens

Secondary Mirror Holder

Secondary holder (ships attached to lens), & HyperStar lens

Содержание HyperStar C8 HD

Страница 1: ...amera are mounted on the telescope there is the potential for damaging the corrector plate if caution is not exercised at all times Be especially careful not to bump the CCD camera or HyperStar lens while they are attached to the telescope Also be sure that all cables from the CCD camera are properly tied off to prevent them from pulling on the camera and lens Additional tips and warnings are clea...

Страница 2: ...m falling out during installation Removing the Secondary Mirror 2 The secondary mirror holder doubles as the bottom cap for the HyperStar lens Begin by unthreading the holder to remove it from the lens Holder capping the HyperStar Holder removed to accept secondary mirror 3 Unthread the retaining ring from the secondary mirror holder as shown below ...

Страница 3: ... side of the mirror assembly Use the original retaining ring to lock the mirror assembly in place Attaching the CCD Camera 6 Some CCD cameras require threaded adapters Begin by removing the plastic cap from the top narrow end of the HyperStar lens and attaching any required adapters 7 The CCD camera will attach to the HyperStar or adapter using T threads Most cameras have a 1 25 or 2 nosepiece tha...

Страница 4: ...8 Thread the CCD camera onto the HyperStar lens 9 Carefully thread the entire assembly into the front of the telescope Camera orientation can be changed later ...

Страница 5: ...s slightly tilted and not perfectly aligned with the optical axis of the HyperStar This is normally compensated by adjusting the secondary mirror but with the mirror removed it now needs to be compensated for with the HyperStar The easiest method is to take a single short exposure of a star field 1 3 seconds is usually enough Make an adjustment by loosening one of the pull screws shown below and t...

Страница 6: ...tly The nylon bushings will allow the lens to rotate with the screws still somewhat snug Once the camera and lens are in the desired orientation tighten down the screws Using Filters 1 Unthread the top half of the filter adapter from the HyperStar lens 2 Thread the filter into the inside of the top half of the filter adapter 3 Thread the top half of the adapter back onto the HyperStar and you are ...

Страница 7: ...53 3 2 20 pixel Starlight Xpress SXVR H9C 72 8 x 54 2 3 13 pixel Starlight Xpress SXVR M25C 189 3 x 126 2 3 78 pixel Exposure Factors Equivalent Exposure Times Focal Ratio Exposure Factor Example Exposures f 2 1 HyperStar C8 HD 1 30 seconds f 3 3 2 5 1 2 minutes f 5 5 7 2 8 minutes f 6 3 9 4 5 minutes f 10 23 11 3 minutes Starizona 5757 N Oracle Rd Suite 103 Tucson AZ 85704 520 292 5010 www stariz...

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