998 CELESTRON Accessories
TABLE OF CONTENTS Accessories — General AC Adapters . . . . . . . . . . . . . . . . 3 Binocular Neck Strap . . . . . . . . . 3 Binocular Tripod Adapter . . . . . . 3 Cases Photo Accessories Reducer/Corrector f/6.3 . . . . . . .22 ..................... 3 Radial Guider . . . . . . . . . . . . . . .22 Car Battery Adapters . . . . . . . . . . 4 Hand Controller . . . . . . . . . . . . .23 Collimation Tool . . . . . . . . . . . . 4 Focus Motors . . . . . . . . . . . . . . .23 Dew Eliminator . . . . . .
ACCESSORIES — GENERAL AC Adapters Allow DC (battery powered) telescopes to be converted for use with 120 volt AC power. + AC Adapter – C5 , Celestar 8, Ultima 91/4 & 11 [18772] AC Adapter – Celestar 8 Deluxe, G-9, G-11 and G14 Mounts, Ultima® 2000 [18770] Binocular Neck Strap – #71520 This wide, black cloth strap, enhanced with the Celestron logo, is designed to add greater comfort and ease of use to your binocular viewing. Fits most manufacturers’ binocular models.
Car Battery Adapters Allow you to link your telescope drive directly to the cigarette lighter receptacle of your car, for a quick and easy DC power source in one step. Car Batter Adapter – C5+, Celestar 8, Ultima® 91/4 & 11 [18767] #18769 #18767 Car Battery Adapter – Ultima® 2000 [18769] Collimation Tool – #94183 The optical performance of most Newtonian telescopes can be optimized by collimating, or realigning, the telescope’s optics, as needed.
Focuser Assembly – #93670 Celestron offers this very smooth and economical 11/4" rack and pinion focuser for Newtonian telescopes. The focuser glides easily and provides 2" of focus travel. An adapter is included to allow use with .96" eyepieces as well as 11/4" eyepieces. LensPen™ – #93575 A superb new tool in optical lens cleaning technology. Perfect for cleaning binocular lenses, small aperture spotting scopes and telescopes, eyepieces, and other optical items.
EYEPIECES Economy Eyepieces: .96" and 11/4" Celestron offers these very economical eyepieces to expand your viewing options. They are all simple eyepiece designs — Ramsden (SR & F) and Huygens (H & HM) but perform quite well on f/8 or slower telescopes. The optics are all glass and they’re priced to make a complete range of powers easily available. Focal Length 4mm – SR 6mm – F 8mm – H 12.5mm – H 20mm – H 25mm – HM Item # .
Plössl Eyepieces: .96" and 11/4" In a recent Sky and Telescope review, Celestron’s .96" and 11/4" Plössl eyepieces were rated as top ranking, and found to outperform many similar, but more expensive eyepieces. An exceptional value! Celestron offers these premium eyepieces at affordable prices, yet they’re among the best designed and corrected eyepieces available. They’re multicoated for enhanced contrast and all of the 11/4" models are threaded to accept Celestron colored eyepiece filters.
LV Eyepieces: 11/4" These Vixen brand eyepieces (6 to 8 elements) are a new breed, using the rare earth glass lanthanum in one of their field lenses, for almost total freedom from any visual aberrations. All focal lengths have a comfortable 20mm of eye relief. Even when using the 2.5mm LV eyepiece on a telescope, you’ll have eye relief of 20mm! These eyepieces also feature soft rubber eyecups, rubber coated bodies, and fully multicoated lenses for optical excellence. Focal Length 2.
Ultima Spotting Scope Eyepieces Extremely high quality eyepieces designed exclusively for the Ultima line of spotting scopes. Model 65mm Spotter 80mm Spotter Mount Type #1828 20x 25x Bayonet #1830 40x 50x Bayonet #1838 16-48x Zoom 20-60x Zoom Thread Clockwise: #1838, #1828, #1830 Eyeguard Set — #93330 A set of 10 rubber eyeguards that fit Celestron 11/4" Economy, SMA and Plössl (except 32 and 40mm) eyepieces as well as many eyepieces of other manufacturers.
BARLOW LENSES Barlow lenses offer an easy, economical way to increase the magnification range of your eyepieces, and Celestron carries an assortment of these highly useful lenses. A Barlow lens doubles the magnifying power of your eyepiece by doubling its effective focal length. For example, an 18mm eyepiece used with a 2x Barlow lens would have the magnifying power of a 9mm eyepiece.
DIAGONALS Diagonals: .96" and 11/4" Celestron’s Erect Image Diagonals are an Amici prism design. This design allows you to look into the telescope at a 45° angle, at images that are oriented properly, meaning the image is upright and correct from left to right. Use of Celestron’s .96" to 11/4" 45° Erect Image Diagonal on a telescope equipped with .96" eyepieces means greater versatility. This diagonal will allow you to use 11/4" eyepieces, to obtain a larger field of view and better eye relief.
FINDERSCOPES Finderscopes are secondary scopes, used to help locate objects in the main telescope. The larger the finderscope, the more you’ll see, to an upper limit of 50mm. Units larger than 50mm have too narrow a field of view to be useful. Finderscopes mount onto the main telescope tube and are an invaluable tool in locating objects for viewing. Clockwise: #93777, #93775, #93779, #93783-8 5x24 Finderscope – #93775 An economical finderscope for Celestron’s Star Hopper™ Dobsonian telescopes.
Quick Release Finder Bracket – #51149-A A unique bracket for 50mm finderscopes, it’s designed for C8, C91/4 and C11 telescopes. No tools are required, and once it’s aligned, you can take it off and put it on without losing alignment. Bracket includes necessary mounting hardware. The additional weight of this accessory may require that you use additional optional counterweights for your telescope.
FILTERS Eyepiece filters are an invaluable aid in lunar and planetary observing. They reduce glare and light scattering, increase contrast through selective filtration, increase definition and resolution, reduce irradiation and lessen eye fatigue. Celestron’s filters are made of high quality, solid plane parallel glass with excellent homogeneity. They’re anti-reflection coated to prevent glaring and ghosting.
#8 Yellow 83% T [Series 4] All observing information for this filter is the same as that given for the #12 and #15 Deep Yellow filters, with the exception of the following: Mars – Improves the Martian maria by reducing scattered light from blue areas, while allowing passage of more green light for studying yellow dust clouds. Comets – Brings out highlights in yellowish dust tails and enhances appearance of comet heads. ORANGE #21 Orange 46% T [#94118-05 & Series 1] Moon – Greatly enhances lunar features.
GREEN #56 Light Green 53% T [Series 2] Moon– Enhances lunar features. Jupiter – Increases visibility of the Great Red Spot. Useful for observing the low-contrast hues of blue and red that exist in the Jovian atmosphere. Mars – Excellent for increased contrast of Martian polar caps, low clouds and yellowish dust storms. Venus – Useful for Venusian cloud pattern studies. Reduces brightness of blue sky during daylight observing.
11/4" Polarizing Filter Set: – #93608 Ambient daylight is normally comprised of multiple wavelengths of light, vibrating in multiple planes. The Eyepiece Polarizing Filter Set transmits only light moving along a specific plane, thereby increasing the contrast between surfaces with different planar transmissions. Generally, the polarization effect makes blue skies a deeper blue, eliminates surface reflections and helps reduce atmospheric haze. The Polarizing Filter Set is intended for visual use.
Solar Filters Celestron’s Solar Skreen® solar filters transmit .001% of visible light, allowing direct observation of the sun. You can see sunspots and the mottled areas known as granules with these filters. In addition to reducing the intensity of the sun’s visible light, they also block 99.999% of invisible infrared light, so you can observe the sun in complete safety and comfort.
LPR Filters Light Pollution Reduction (LPR) Filters are designed to selectively reduce the transmission of certain wavelengths of light, specifically those produced by artificial light. This includes mercury, and both high and low pressure sodium vapor lights. In addition, they block unwanted natural light caused by neutral oxygen emission in our atmosphere (i.e. sky glow).
MOTOR DRIVES To allow automatic tracking of celestial objects, Celestron offers several motor drives. All models include a hand controller, which makes observing more fun as it makes centering objects much easier. In addition, the hand controller can be used as a drive corrector for long exposure celestial photography. Economy Models These models are single axis (R.A.), DC motor drives. They are powered by four D-cell batteries (not included).
GUIDING EYEPIECES Guiding (or reticle) eyepieces are mandatory for guided astrophotography. They keep a guide star stationary during long exposures to avoid star trailing. #94169 and #94170 require an illuminator — choose from models #60001 and #60011. 12mm Kellner Reticle Eyepiece: 11/4" – #94170 The reticle pattern is a .0075" spaced double line system. The optics are fully coated and offer good eye relief.
PHOTO ACCESSORIES Reducer/Corrector f/6.3 – #94175 This combination focal reducer and field corrector lens accessory works with all Celestron C5, C8, C91/4 , C11 and C14 telescopes. This clever accessory makes it possible to have a dual focal ratio instrument, without sacrificing image quality. The Reducer/Corrector is f/6.3 for C5, C8, C91/4 and C11 telescopes and f/7 for the C14 telescope. If offers wide fields of view with any SchmidtCassegrain telescope.
Hand Controller – #28983 For use with the C5+ and Celestar 8, both for astrophotography and CCD imaging. It’s also great for observing, where it serves to make centering objects easier. Provides easy centering and guiding on both axes. (Requires declination motor for use of the declination axis). Focus Motors These motors allow you to focus the telescope electronically, instead of manually. The motorized focuser eliminates the possibility of bumping or shaking the telescope when focusing.
Counterweights Using accessories such as cameras, Lens Shades, Tele-Extenders and the 2" Diagonal will affect the balance of your Celestron Schmidt-Cassegrain telescope. Counterweights restore proper balance, increasing ease in handling and improved tracking accuracy. You don’t need perfect balance to operate your telescope. In fact, it’s not always possible to achieve perfect balance with fixed-position weights. All you need to do is reduce, or eliminate, swing when R.A. and DEC locks are released.
T-Adapters A T-Adapter allows you to attach your 35mm SLR camera to the prime focus of your telescope or spotting scope. This arrangement is used for terrestrial photography and short exposure lunar and planetary photography. It can also be used for long exposure deep-sky photography when using a separate guidescope. Both a T-Adapter and T-Ring are required to mount a camera to your instrument.
Deluxe Tele-Extender – #93643 The Deluxe Tele-Extender for Schmidt-Cassegrain telescopes is a hollow tube that allows you to attach a camera to your telescope, with an eyepiece installed. By using the Deluxe TeleExtender in combination with an eyepiece, you can increase your instrument’s effective focal length to well over 10,000mm! And this corresponds with a matching increase in image size. This technique is known as eyepiece projection photography.
COMPUTERIZED CIRCLES / SKY MAPS / BOOKS Digital Setting Circles: Advanced Astro Master® Computerize your telescope! This pointing system contains a database of over 10,000 objects. Once aligned, it will guide you to any one of these objects.
Planisphere A simple and inexpensive tool for all levels of observers, from naked eye viewers to users of highly sophisticated telescopes. The Celestron Planisphere makes it easy to locate stars for observing and is a great planet finder as well. A map of the night sky, oriented by month and day, rotates within a depiction of the 24 hours of the day, to display exactly which stars and planets will be visible at any given time. Ingeniously simple to use, yet quite effective.
STEREO BINOCULAR VIEWER Enjoy your telescope in a completely new and fascinating way — use your brain to its full capacity rather than speculating on the next, larger size telescope. The Stereo Binocular Viewer (#93690) allows you to adapt two eyepieces to the telescope for simultaneous viewing (i.e., like binoculars). The result: a fantastic three dimensional effect when observing many celestial objects.
TRIPODS Photographic/Video Tripod – #93596 For use with photographic and visual instruments fitted with a standard 1/4" x 20 threaded hole. The Photo Tripod provides stable support for video cameras, telephoto lenses, spotting scopes and binoculars.
Lightweight Field Tripod – #93591-A Designed for Celestron’s C5 telescope, this rigid, metal tripod weighs less than 10 lbs. and is very compact when folded up. It’s great for traveling. It can be used with the Celestar 8 telescope when high portability is required. An optional accessory tray (#93594) is available for this tripod. Not only is the tray handy for small accessories, but it also enhances the overall rigidity of the tripod.
EQUATORIAL WEDGES For optimal performance in astronomical observing that involves setting circles or motorized tracking, Celestron’s telescopes with a fork mount and motor drive must be mounted on an Equatorial Wedge. The wedge allows you to tilt the telescope so that its polar axis (R.A. axis) is parallel to the earth’s axis. The angle of tilt will depend on your latitude when the telescope is level.
EQUATORIAL MOUNTS Telescope Equatorial Mount – CG-3 – #91503 A durable, rigid, German equatorial mount with a wooden tripod, offering both affordability and high quality. Designed as an excellent and inexpensive upgrade option when you’re ready to move to a sturdier mount for your beginning telescope. R.A. and DEC setting circles, a latitude scale, slow motion controls and a handy accessory tray are included. This is the same mount Celestron uses with the Firstscope 80EQ and 114 telescopes.
CELESTRON ONE YEAR LIMITED WARRANTY A. Celestron International (CI) warrants its accessories to be free from defects in materials and workmanship for one year. CI will repair or replace such product or part thereof which, upon inspection by CI, is found to be defective in materials or workmanship. As a condition to the obligation of CI to repair or replace such product, the product must be returned to CI together with proof-of-purchase satisfactory to CI. B.
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