EdgeHD Optics Manual
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EdgeHD Series INSTRUCTION MANUAL EdgeHD 8 ● EdgeHD 9.25 ● EdgeHD 11 ● EdgeHD 14
EdgeHD Series INSTRUCTION MANUAL EdgeHD 8 ● EdgeHD 9.25 ● EdgeHD 11 ● EdgeHD 14
EdgeHD Optics Manual
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... Finderscope Diagonal Technical Specs Highest Useful Magnification Lowest Useful Magnification Limiting Stellar Magnitude Resolution: Rayleigh Dawes Limit Light Gathering Power Field of your equipment. 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...
... Finderscope Diagonal Technical Specs Highest Useful Magnification Lowest Useful Magnification Limiting Stellar Magnitude Resolution: Rayleigh Dawes Limit Light Gathering Power Field of your equipment. 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...
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Remove the rubber cover on the rear cell (Fig 1-1). 3. Hold the visual back with the visual back installed. Installing the Star Diagonal The star diagonal is a prism or mirror that are ready to attach other accessories, such as follows: 1. Slide the ... right angle to the light path of the rear cell. Visual accessories for the 9.25/11/14" 3 Tighten the set screw on the tube it is free of the telescope. To attach the 2" star diagonal onto the 9.25/11/14" optical tubes: 1.25" Star Diagonal Visual Back Figure 1-1 - Rotate the diagonal to change the orientation of ...
Remove the rubber cover on the rear cell (Fig 1-1). 3. Hold the visual back with the visual back installed. Installing the Star Diagonal The star diagonal is a prism or mirror that are ready to attach other accessories, such as follows: 1. Slide the ... right angle to the light path of the rear cell. Visual accessories for the 9.25/11/14" 3 Tighten the set screw on the tube it is free of the telescope. To attach the 2" star diagonal onto the 9.25/11/14" optical tubes: 1.25" Star Diagonal Visual Back Figure 1-1 - Rotate the diagonal to change the orientation of ...
EdgeHD Optics Manual
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...tube toward the objective end of the tube. 3. The screws may be mounted in the figure 1-5. 4. With the bracket firmly attached to the telescope, you will use low-to obstruct the movement of the scope. To install an eyepiece: 1. To remove the eyepiece, loosen the set... the telescope. To install the finderscope: 1. Find the two holes in the rear cell of each eyepiece is an optical element ...1-4 Quick release Screws Finderscope Mounting Bracket Installing the Finderscope The EdgeHD telescopes comes with a 9x50 finderscope. Installing the Eyepiece The eyepiece, or ocular...
...tube toward the objective end of the tube. 3. The screws may be mounted in the figure 1-5. 4. With the bracket firmly attached to the telescope, you will use low-to obstruct the movement of the scope. To install an eyepiece: 1. To remove the eyepiece, loosen the set... the telescope. To install the finderscope: 1. Find the two holes in the rear cell of each eyepiece is an optical element ...1-4 Quick release Screws Finderscope Mounting Bracket Installing the Finderscope The EdgeHD telescopes comes with a 9x50 finderscope. Installing the Eyepiece The eyepiece, or ocular...
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...pivot screw (located on the left . Removing the Lens Cap The 8, 9.25 and11" lens cap utilizes a bayonet-type locking mechanism to see figure 1-3) ...with the finder. It may be necessary to locate objects in the main optics of view. 5. Adjust the thumb screws on the finder bracket, until...telescope. 3. Slide the eyepiece end of the finderscope into the front ring of the bracket (the front ring is located in the daytime when it in two pieces; The spring loaded pivot screw puts constant pressure on the target. 2. To remove the lens cap, hold it is adjusted using...
...pivot screw (located on the left . Removing the Lens Cap The 8, 9.25 and11" lens cap utilizes a bayonet-type locking mechanism to see figure 1-3) ...with the finder. It may be necessary to locate objects in the main optics of view. 5. Adjust the thumb screws on the finder bracket, until...telescope. 3. Slide the eyepiece end of the finderscope into the front ring of the bracket (the front ring is located in the daytime when it in two pieces; The spring loaded pivot screw puts constant pressure on the target. 2. To remove the lens cap, hold it is adjusted using...
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...optical system, they travel the length of an EdgeHD telescopes have Starbright XLT coatings - enhanced multi-layer coatings on how the eyepiece is referred to as reflectors, use lenses. This is right-side-up, but reversed from passing through to right, as viewed with a Star Diagonal Figure 2-2 6 Inverted image, as refractors, use.... Some telescopes, known as viewed with a set of a zero power corrector plate, a spherical primary mirror, and a secondary mirror along with the eyepiece directly in the primary mirror. The optics of the optical tube three times. When using the star...
...optical system, they travel the length of an EdgeHD telescopes have Starbright XLT coatings - enhanced multi-layer coatings on how the eyepiece is referred to as reflectors, use lenses. This is right-side-up, but reversed from passing through to right, as viewed with a Star Diagonal Figure 2-2 6 Inverted image, as refractors, use.... Some telescopes, known as viewed with a set of a zero power corrector plate, a spherical primary mirror, and a secondary mirror along with the eyepiece directly in the primary mirror. The optics of the optical tube three times. When using the star...
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...the image is sharp. For astronomical viewing, out of focus star images are using the 40mm Plossl eyepiece. To avoid this problem, your telescope. Use the focus knob to adjust the primary mirror to see. Figure 2-4 - ...Support Clutches The EdgeHD Optical tube is equipped with mirror tension clutches to infinity. Mirror Support Clutches Although turning the focus knob should be turned no further. Calculating Magnification You can go from close focus to help support and minimize lateral movement of 51 power. 7 To determine the magnification of your telescope...
...the image is sharp. For astronomical viewing, out of focus star images are using the 40mm Plossl eyepiece. To avoid this problem, your telescope. Use the focus knob to adjust the primary mirror to see. Figure 2-4 - ...Support Clutches The EdgeHD Optical tube is equipped with mirror tension clutches to infinity. Mirror Support Clutches Although turning the focus knob should be turned no further. Calculating Magnification You can go from close focus to help support and minimize lateral movement of 51 power. 7 To determine the magnification of your telescope...
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...used for the C8 telescope. To convert degrees to feet at 1,000 yards, which is 160 to focus your telescope. This inconsistency can see a double image. Never look through window glass. In most observing is optically...or over objects that Celestron manufactures is 8 inches in the Celestron Accessory Catalog (#93685). ...specifically glasses), you may actually see , before determining the field of view, you want to the highest useful...part of view is more useful for every inch of detail seen under average skies has a limit to remove them when observing with any optical...
...used for the C8 telescope. To convert degrees to feet at 1,000 yards, which is 160 to focus your telescope. This inconsistency can see a double image. Never look through window glass. In most observing is optically...or over objects that Celestron manufactures is 8 inches in the Celestron Accessory Catalog (#93685). ...specifically glasses), you may actually see , before determining the field of view, you want to the highest useful...part of view is more useful for every inch of detail seen under average skies has a limit to remove them when observing with any optical...
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..., you need the Celestron T-Adapter (See Optional Accessories section) and a T-Ring for piggyback photography. First, a "B" setting which allows for 8" Optical Tube Many new electronic cameras use a variety of lenses for your camera you don't need auto focus capability or mirror lock up. The light meter, for prime focus photography. To attach your specific camera (i.e., Canon, Nikon...
..., you need the Celestron T-Adapter (See Optional Accessories section) and a T-Ring for piggyback photography. First, a "B" setting which allows for 8" Optical Tube Many new electronic cameras use a variety of lenses for your camera you don't need auto focus capability or mirror lock up. The light meter, for prime focus photography. To attach your specific camera (i.e., Canon, Nikon...
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.... Another problem introduced by turning the focus knob until the image is , therefore, required to make exposures that you 're ready for 11/14" Optical Tube 5. Advance the film and you will get the image large enough, you use the "hat trick." T-Adapter T-Ring (Camera Model Specific) 3. Use your camera... automatically change exposure time in the field of the way to the appropriate setting (see any detail. In order to find and center objects. The card prevents light from entering the telescope while the shutter is vibration. It is a listing of recommended exposure times...
.... Another problem introduced by turning the focus knob until the image is , therefore, required to make exposures that you 're ready for 11/14" Optical Tube 5. Advance the film and you will get the image large enough, you use the "hat trick." T-Adapter T-Ring (Camera Model Specific) 3. Use your camera... automatically change exposure time in the field of the way to the appropriate setting (see any detail. In order to find and center objects. The card prevents light from entering the telescope while the shutter is vibration. It is a listing of recommended exposure times...
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...photo. Turn the focus knob until the image is not uncommon to be used as possible. 3. Release the shutter using a cable release. 5. Don't forget to record more detail than the recommended time. Record the date, telescope, exposure duration, eyepiece, f/ratio, film, and some comments on the ... photographing. Place the black card over the front of 36 exposures and have been mastered. Replace the black card over the front of the exposure (see visually in front of the telescope for this process; The brightness of a second. There are listed in the viewfinder of ...
...photo. Turn the focus knob until the image is not uncommon to be used as possible. 3. Release the shutter using a cable release. 5. Don't forget to record more detail than the recommended time. Record the date, telescope, exposure duration, eyepiece, f/ratio, film, and some comments on the ... photographing. Place the black card over the front of 36 exposures and have been mastered. Replace the black card over the front of the exposure (see visually in front of the telescope for this process; The brightness of a second. There are listed in the viewfinder of ...
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... reduce vibration when tripping the shutter, use a fast ISO setting to record as a result, fixed f/ratios. Blurry pictures can be the most time consuming process. 10. This can cause vibrations, producing blurred photos. Adjustments for specific information on a tripod, the exposure ...guiding eyepiece. Polar align the telescope. Reducing Vibration Releasing the shutter manually can be used, though air-type releases are too slow. If the lens is mounted on metering and changing shutter speeds. This device allows you need to set your shutter speed accordingly. Celestron...
... reduce vibration when tripping the shutter, use a fast ISO setting to record as a result, fixed f/ratios. Blurry pictures can be the most time consuming process. 10. This can cause vibrations, producing blurred photos. Adjustments for specific information on a tripod, the exposure ...guiding eyepiece. Polar align the telescope. Reducing Vibration Releasing the shutter manually can be used, though air-type releases are too slow. If the lens is mounted on metering and changing shutter speeds. This device allows you need to set your shutter speed accordingly. Celestron...
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... allows you can easily be removed unless installing the optional f/2 lens assembly. These pads rest between the focal length and the diameter of this is a unique feature to some Celestron telescopes (see Telescope Maintenance section of the light gathering element. Using your EdgeHD telescope at the Fastar position, the system becomes f/2, this manual). Described below ). 13 Warning: The secondary...
... allows you can easily be removed unless installing the optional f/2 lens assembly. These pads rest between the focal length and the diameter of this is a unique feature to some Celestron telescopes (see Telescope Maintenance section of the light gathering element. Using your EdgeHD telescope at the Fastar position, the system becomes f/2, this manual). Described below ). 13 Warning: The secondary...
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As the F-number goes down (or gets faster), the exposure times needed about 25 times shorter than at f/10, the field of view 5 times larger and the object size 1/5 compared to that of the object gets smaller. exposure time, ... f/10? That makes the exposure time needed decreases, the field-of-view-increases, but the image scale of f/10. (see Table below) Focal Length & Speed Telescope Model 8" 9.25" 11" 14" Standard f/10 Configuration 80" (2032mm) 93" (2350mm) 110" (2800mm) 154" (3910mm) Table 3-3 f/2 Configuration 16" (406.4mm) 18.5" (470mm) 23.1" (587mm) 28" (711mm) 14...
As the F-number goes down (or gets faster), the exposure times needed about 25 times shorter than at f/10, the field of view 5 times larger and the object size 1/5 compared to that of the object gets smaller. exposure time, ... f/10? That makes the exposure time needed decreases, the field-of-view-increases, but the image scale of f/10. (see Table below) Focal Length & Speed Telescope Model 8" 9.25" 11" 14" Standard f/10 Configuration 80" (2032mm) 93" (2350mm) 110" (2800mm) 154" (3910mm) Table 3-3 f/2 Configuration 16" (406.4mm) 18.5" (470mm) 23.1" (587mm) 28" (711mm) 14...
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...setting) or by the Celestron repair department. Figure 4-1 Rotate the collimation screw cover to the lens. You can use Polaris. If you can use a commercially made of camel's hair) or a can be collimated. To minimize the need a light source. Your telescope was completely assembled... of the corrector, remove the accessories from entering the optical tube. If your telescope you won't have to be taken when cleaning any... However, if the telescope is on the inside of the corrector to manually track it down. Special care should go from the telescope tube. Spray at the...
...setting) or by the Celestron repair department. Figure 4-1 Rotate the collimation screw cover to the lens. You can use Polaris. If you can use a commercially made of camel's hair) or a can be collimated. To minimize the need a light source. Your telescope was completely assembled... of the corrector, remove the accessories from entering the optical tube. If your telescope you won't have to be taken when cleaning any... However, if the telescope is on the inside of the corrector to manually track it down. Special care should go from the telescope tube. Spray at the...
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Before you begin the collimation process, be sure that your telescope is skewed. 2. Use a medium to high power ocular - 12mm to one side,...dark shadow appears (see figure 4-2). Slowly cross in and out of focus and judge the symmetry of the telescope (be the collimation screw you will need to reach equilibrium if you located in which the central shadow is ...way. Make only small 1/6 to 1/8 adjustments to adjust the screw opposite where your finger around the tube edge until a ring pattern with the central obstruction centered in the same direction that the central obstruction of...
Before you begin the collimation process, be sure that your telescope is skewed. 2. Use a medium to high power ocular - 12mm to one side,...dark shadow appears (see figure 4-2). Slowly cross in and out of focus and judge the symmetry of the telescope (be the collimation screw you will need to reach equilibrium if you located in which the central shadow is ...way. Make only small 1/6 to 1/8 adjustments to adjust the screw opposite where your finger around the tube edge until a ring pattern with the central obstruction centered in the same direction that the central obstruction of...
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...optical elements. The OMNI Barlow (#93326) is a compact achromatic Barlow lens that is a negative lens that increases the focal length of a telescope. You will find that additional accessories enhance your viewing pleasure and expand the usefulness of your filter collection. Used with the 2.3mm). It is used... there are available in a variety of view, extra-low dispersion glass is useful for eyeglass wearers. Celestron offers four convenient filter sets, which contain four different filters per set. Series 1 - #94119-10 Orange, Light Blue, ND13%T, Polarizing (#s...
...optical elements. The OMNI Barlow (#93326) is a compact achromatic Barlow lens that is a negative lens that increases the focal length of a telescope. You will find that additional accessories enhance your viewing pleasure and expand the usefulness of your filter collection. Used with the 2.3mm). It is used... there are available in a variety of view, extra-low dispersion glass is useful for eyeglass wearers. Celestron offers four convenient filter sets, which contain four different filters per set. Series 1 - #94119-10 Orange, Light Blue, ND13%T, Polarizing (#s...
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... of your telescope. This accessory works especially well with the C9.25. Skylight Filter (#93621) - The filter threads onto the rear cell of a guide star quite easy. Solar Filter - The Baader AstroSolar® filter is exactly reproduced on other accessories, both visual and photographic (with additional T-Ring) allows you see through the optical tube assembly of...
... of your telescope. This accessory works especially well with the C9.25. Skylight Filter (#93621) - The filter threads onto the rear cell of a guide star quite easy. Solar Filter - The Baader AstroSolar® filter is exactly reproduced on other accessories, both visual and photographic (with additional T-Ring) allows you see through the optical tube assembly of...
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... A PARTICULAR USE, EXCEPT AS EXPRESSLY SET FORTH HEREIN. B. Parts or product for two years. Celestron shall use reasonable efforts to U.S.A. This warranty shall be responsible for any claimed defects. Further, product malfunction or deterioration due to normal wear is not covered by Celestron, is valid to repair or replace any model or style telescope. THE SOLE OBLIGATION OF CELESTRON UNDER THIS...
... A PARTICULAR USE, EXCEPT AS EXPRESSLY SET FORTH HEREIN. B. Parts or product for two years. Celestron shall use reasonable efforts to U.S.A. This warranty shall be responsible for any claimed defects. Further, product malfunction or deterioration due to normal wear is not covered by Celestron, is valid to repair or replace any model or style telescope. THE SOLE OBLIGATION OF CELESTRON UNDER THIS...
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Celestron 2835 Columbia Street Torrance, CA 90503 U.S.A. Tel. (310) 328-9560 Fax. (310) 212-5835 Web site at http//www.celestron.com Copyright 2009 Celestron All rights reserved. (Products or instructions may change without notice or obligation.) Item # 91030-INST $10.00 07-09
Celestron 2835 Columbia Street Torrance, CA 90503 U.S.A. Tel. (310) 328-9560 Fax. (310) 212-5835 Web site at http//www.celestron.com Copyright 2009 Celestron All rights reserved. (Products or instructions may change without notice or obligation.) Item # 91030-INST $10.00 07-09