Polar Axis Finderscope for CGX and CGX-L manual · NPF ExploraScope AstroMaster LT Telescope Series 5 Language Manual . C8 N Manual Addendum. Classic Celestron C8 information, maintenance, manuals, parts, and accessories. View and Download Celestron Super C8 instructions online. Celestron Super C8: User Guide. Super C8 Telescope pdf manual download.
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The C8 was launched in and was the first mass produced Schmidt-Cassegrain telescope.
The orange tube C8 came fork mounted on a circular drive base. The corroded collimation screws in the left photo were removed and replaced with Bob’s knobs.
Celestron C8 Page
There are screw holes for mounting accessories on both the front and rear cells. Following are links to the only two websites I have found: The classic orange tube model was sold betweenafter which it was changed to a black tube. If anyone knows of other classic C8 websites, please send me a link.
C8 Maintenance Websites There are not too many websites at least that I can find giving classic orange tube C8 maintenance instructions. The forks are detachable from the circular drive base, which contains a manual right ascension RA control knob, the RA clamp, the RA setting circle, and the clock drive.
The below left photo shows the C8 with the corrector plate removed. Other sources of spare parts are: I have constructed this web page to consolidate the information I have gathered about the C8, hopefully this will be of interest to other C8 owners or anyone interested in early Celestron telescopes.
The accessory screws extend 5. The below photos show the corrector plate, secondary mirror holder, collimation screws original factory screwsand secondary mirror light baffle.
When assembled, the corrector plate sits on the small ledge and is centered by the cork spacers. The mid-late ‘s mount was monotone grey with solid forks, but early ‘s models had a two tone paint scheme and forks with circular cut outs.
Celestron C8 Instruction Manual
I had originally intended to write a historical background on Celestron and the C8, but there are already several very good sites for Celestron history. This allows very precise declination adjustments, but the tangent arm has a limited range of motion.
The below right photo shows the plastic secondary holder with the Bob’s knobs installed. Celestron’s Technical Support recommended the following website as a possible source of classic C8 information and replacement parts: The below photos show the secondary mirror mounting plate left and the plastic secondary holder right. Celestrkn Dec slow motion knob turns a screw that moves a tangent arm connected to the left declination axis bearing. This was the first mass produced Schmidt-Cassegrain telescope, and greatly influenced amateur astronomy in the ‘s through to the present.