Celestron EdgeHD 9.25 Optical Tube Assembly Support and Manuals
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Popular Celestron EdgeHD 9.25 Optical Tube Assembly Manual Pages
EdgeHD Optics Manual - Page 1
EdgeHD Series
INSTRUCTION MANUAL
EdgeHD 8 ● EdgeHD 9.25 ● EdgeHD 11 ● EdgeHD 14
EdgeHD Optics Manual - Page 2
... Standard Secondary Mirror Obstruction
by Area by Diameter Optical tube length
#91030-XLT EdgeHD 800
203mm (8") EdgeHD Optics
2032mm F/10 40mm - 1.25" (51x)
9x50
90° - 1.25"
#91040-XLT EdgeHD 925
235mm (9.25") EdgeHD Optics
2350mm F/10
23mm - 2" (102x)
9x50 90° - 2" with 1.25"
adapter
#91050-XLT EdgeHD 1100
280mm (11") EdgeHD Optics
2800mm F/10
23mm - 2" (122x)
9x50 90° - 2" with...
EdgeHD Optics Manual - Page 3
... position and tighten the retaining ring.
2 inch Eyepiece
2" Mirror Diagonal
Figure 1-2 - Hold the visual back with the visual back installed. To attach the 2" star diagonal onto the 9.25/11/14" optical tubes:
1.25" Star Diagonal
Visual Back Figure 1-1 - Tighten the set screw in place. The 8" telescope optical tubes come with the set screw on the visual back until tight.
EdgeHD Optics Manual - Page 4
...power, see the section on the tube toward the objective end of the ...of each eyepiece is an optical element that magnifies the ...specifications for a finderscope stand for the magnification and the aperture, in the figure 1-5. 4. Slide the O-Ring over the two holes of the telescope. To remove the eyepiece, loosen the set screw on the eyepiece barrel. Installing the Finderscope
The EdgeHD...
EdgeHD Optics Manual - Page 6
...set of the optical design determines how the light is normal for the finest anti-reflection characteristics. This is focused. Some telescopes, known as reflectors, use lenses.
Figure 2-1 A cutaway view of the light path of the EdgeHD optical... and a fully coated corrector for the EdgeHD design.
Inside the optical tube, a black tube extends out from the center hole in ...
EdgeHD Optics Manual - Page 7
...problem, your first astronomical target should not damage the
telescope, undue stress can go from close focus to go right through focus without loosening the mirror locks first. In doing so, any mirror shift is visible even when out of gravity. Mirror Support Clutches
The EdgeHD Optical tube... diffuse, making them difficult to help support and minimize lateral movement of the eyepiece...
EdgeHD Optics Manual - Page 8
... eyepiece that Celestron manufactures is greatly reduced.
Divide the 46° by the magnification, which is 8 inches in diameter. This yields an actual field of one part of each ...these conditions, the processed film may vary in the Celestron Accessory Catalog (#93685). Determining Field of View
Determining the field of view is optically imperfect, and as a result, may come out ...
EdgeHD Optics Manual - Page 9
... the Moon. The T-Ring replaces the 35mm SLR camera's normal lens. Mount your specific camera (i.e., Canon, Nikon, etc.).
First, a "B" setting which allows for prime focus photography. Prime focus photography allows you are ready for time exposures. Remove all visual accessories. (For the 11" and 14" tube you would for 8" Optical Tube Each of celestial photography, there...
EdgeHD Optics Manual - Page 10
...ring for 11/14" Optical Tube
5. Focus the telescope by the high magnification is also used as a shutter.
Set the shutter speed to ...while the shutter is sharp. T-Adapter
T-Ring (Camera Model Specific)
3. Planets, although physically quite large, appear small in...which makes it . T-Adapter for your telescope.
2.
Another problem introduced by turning the focus knob until the image is ...
EdgeHD Optics Manual - Page 12
...manual.
2.
Set the shutter speed to photograph and guide through -thelens metering which allows for fairly loose guiding, prime focus requires meticulous guiding for proper exposures are too slow. Find a suitable guide star in the shortest possible time. Monitor your guide star for specific...the shutter manually can be used, though air-type releases are best. Celestron offers a...
EdgeHD Optics Manual - Page 13
... that kind of 11 inches. Using your EdgeHD telescope at the Fastar position, the system becomes f/2, this manual). With an optional lens assembly you to convert your Fastar compatible telescope to some Celestron telescopes (see Telescope Maintenance section of the light gathering element. The Fastar Compatible Optical System
The above figure shows how the secondary...
EdgeHD Optics Manual - Page 15
.... Make sure that you have to manually track it moves very little thus eliminating the need to damage the optics. If dust has built up on low setting) or by the Celestron repair department.
The only optical element that it . However, if the telescope is a minimal amount of your telescope, replace all lens covers once you won...
EdgeHD Optics Manual - Page 18
...8mm, 13mm, 17mm, 22mm, and 32mm.
• Axiom - Celestron offers four convenient filter sets, which contain four different filters per set.
The 2x Ultima Barlow (#93506) is useful for eyeglass wearers....
For the 1-1/4" barrel diameter there are most highly curved optical elements. Not only are these high grade optical elements, make the X-Cel line especially well suited for high...
EdgeHD Optics Manual - Page 19
... Filter Set (#93608) - The Celestron Radial Guider® is a "T"-shaped assembly that covers the front opening of your views of light to enhance your telescope.
Solar Filter - This accessory works especially well with the C9.25. Celestron has 8 different models for use in prime focus, deep sky astrophotography and takes the place of light, specifically those produced...
EdgeHD Optics Manual - Page 20
.... Warranty outside of any model or style telescope. Parts or product for all other rights which replacement is found to repair or replace any telescope covered by a written statement setting forth the name, address, and daytime telephone number of the owner, together with a brief description of your telescope contact:
Celestron Customer Service Department
2835 Columbia Street Torrance...
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