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12

OPTICAL FINDERSCOPES (Continued)

FINDER MOUNTING RINGS

Your finderscope will need adjustable mounting rings that fit your model of telescope. Our 50 mm and 60 mm

finders use the R50 DA rings. Our 80 mm finder will require the R80DA rings. 

The specific model number of rings that fit the shoe on your telescope is the R50DA (shown to

the left) or R80DA depending on the size of finder you order. 
To install the finderscope into the rings, you must first remove

the entire back end assembly including the finderscope’s fo-

cuser, prism and rotator. Never remove the dewshield on the

finder as this will cause the lens to fall out of the tube.

Loosen the thumb screws on the finder rings enough to slide the finderscope

into the rings then tighten the screws until they contact the finderscope. Thread the rear assembly back on the

finderscope. Slide the finderscope with rings into the mounting shoe on the telescope focuser. Secure the

mounting shoe thumbscrews tightly so the finderscope and rings do not slip out of the shoe. 

For more information on our finder scopes and rings visit http://www.stellarvue.com/finder.

Still not sure? call us at (530) 823-7796 or Email us at [email protected]

50 mm finderscope mounted in rings

finderscope mounting shoe

Mounting finderscope and rings 

2. Tighten 

mounting shoe

Thumbscrews

1. Slide into shoe

There are six thumb screws that hold the finderscope. These thumb screws allow the user to adjust

the finderscope up/down, left/right so it is pointed directly at the same spot in the sky as the main 

telescope. To make the adjustment loosen one thumb screw and tighten the other two on the same

ring which will shift the finderscope’s position. It makes sense to adjust the finderscope during the

day so it is ready and accurately aligned to the telescope before nightfall. Follow this procedure to

adjust the finderscope:

Place your lowest power eyepiece in your telescope. Point it at a distant object

like the top of a power pole. In this example shown to the right, we are placing the

left top electric insulator in the center of the eyepiece. You can use any distant 

object like the top of a flagpole or a building on the top of a hill.  

With the object placed in the center of the telescope eyepiece look through the

finderscope eyepiece and adjust the thumb screws on the finderscope mounting

ring until this distant object is positioned where the two crosshairs in the reticle 

intersect. Make sure all six thumbscrews are tight when you finish aligning it. You

are now ready to observe at night using the finderscope. When objects are placed

behind the cross hairs in the finderscope they should be centered in the telescope

using your lowest power eyepiece. 

Telescope View

Finderscope View

Содержание SVX130T PREMIER

Страница 1: ...burn Precision Optics WWW STELLARVUE COM 11802 KEMPER ROAD AUBURN CA 95603 U S A PHONE 530 823 7796 FAX 530 823 8121 STELLARVUE STELLARVUEC SEEING IS BELIEVING The mission of Stellarvue is to inspire a healthy interest in science and astronomy by handcrafting the finest telescopes on the planet ...

Страница 2: ...eter 9 5 8 long retracting aluminum dew shield in Instrument White with black anodized fittings Dimensions OTA 5 5 diameter 29 5 long with dew shield retracted and 35 long when extended Weight OTA 16 8 pounds Rings weigh 1 4 pounds each Slightly heavier with the Feather Touch option Focuser Stellarvue s highly rated 3 5 dual speed rack and pinion focuser with 2 and 1 25 threaded adapters Includes ...

Страница 3: ... tested multiple times to ensure perfection Please store and use it as you would any optical device If dust accumulates on the lens you may use a bulb type blower to remove it Always be careful to avoid marring the lens Stellarvue refractor lenses are fully multi coated to increase light transmission and contrast Lenses are accurately hand figured and glass test plates are used to ensure accuracy ...

Страница 4: ...p in Auburn California After machine polishing we map the optical surfaces using our Zygo Phase Shifting Laser Interferometer This equipment is capable of measuring surfaces far more accurately than test plates or other conventional methods Using these data we then make fine corrections by hand and machine using special tools to eliminate zones trefoil and other optical defects as we bring up the ...

Страница 5: ...de with your knife Carefully remove the tele scope from the cardboard box and set it on a secure surface Unzip or unlatch the case to reveal the tele scope inside Unpack the telescope from its case and make sure you have all the necessary parts 1 Objective Cover 2 Telescope 3 Two Mounting Rings 4 Finder Scope Shoe 5 2 Adapter 6 1 1 4 Adapter 7 Plug 8 Travel Case 9 Manual 10 QC Checklist 11 Test Re...

Страница 6: ...rings using 1 4 20 socket cap head screws supplied with the rail Gener ally telescope mounts use one of two different style mounting rails Select the proper size of rail for the mount you are using Most larger mounts use the larger Losmandy style rail which is 4 wide Mounts using this size rail include the Stellarvue mounts with our TDLV shoes Paramount Losmandy Mathis Discmounts and larger Celest...

Страница 7: ... to balance it in both axes The mount manual explains how to do this If you are using an equatorial and or go to computerized mount you will need to align the telescope according to the mount manual to get it ready for use Once the telescope is balanced and the mount aligned you are ready to observe Two additional optical components are necessary to be able to view through your telescope at night ...

Страница 8: ...s means ob jects appear 45 5 times closer The smaller the focal length of the eye piece the higher the power becomes So our 4 7 mm eyepiece provides 194 power 910mm 4 7mm The ability of a telescope to magnify is limited by A The accuracy of the optics B The steadiness of the atmosphere Under perfect conditions the SVX130T is capable of magnifying objects 30 500 times Unfortunately the air is often...

Страница 9: ...cause your telescope to exhibit false color That color is not in the telescope but above you Moisture in the atmosphere may act like prisms and brighter objects will appear with a reddish color on one side and a green blue color on the other This is the atmosphere not your telescope Observing deep sky objects Deep sky objects like nebulae and galax ies can be very hard to discern for new hobbyists...

Страница 10: ...1 25 Eyepieces Optional 1 25 Filter DSLR Camera T Ring T Ring Extension tubes required for your CCD camera call Stellarvue for assistance CCD Camera Extension tubes required for your CCD camera call Stellarvue for assistance Stellarvue 2 Dielectric Diagonal D1040Q FA2 1 25 Adapter FA2 1 25 Adapter DSLR Camera CCD Camera Remove 2 adapter on focuser and thread into focuser drawtube Remove extension ...

Страница 11: ...y style rails Telescope mounts using the Losmandy sized rail NEEDED MOUNTING HARDWARE fINDERSCOPE RINGS NEEDED see page 12 see page 11 FINDERSCOPES REFLEX SIGHTS 50 mm Optical Finderscope Red Dot Finder Delux Red Dot Finder 60 mm Optical Finderscope Optional C130HD Heavy Duty Travel Case Standard Thickly Padded Travel Case 10 CASE OPTIONS 80 mm Optical Finderscope ...

Страница 12: ...ndard rifle scope mount Use the F002E base to mount the finder to one of the two telescope mounting rings While the brightness is controlled with a 7 position switch some users feel it is too bright to use under the darkest conditions http www stellarvue com deep sky mrf deluxe red dot finder f002 11 Red Dot finder mounted to a hinged ring OPTICAL FINDERSCOPES Vic Maris designed the Stellarvue opt...

Страница 13: ...pe and rings 2 Tighten mounting shoe Thumbscrews 1 S li d e in to s h o e There are six thumb screws that hold the finderscope These thumb screws allow the user to adjust the finderscope up down left right so it is pointed directly at the same spot in the sky as the main telescope To make the adjustment loosen one thumb screw and tighten the other two on the same ring which will shift the findersc...

Страница 14: ...hey show extremely fine detail in sunspots and faculae on our nearest star 3 Daystar Chromosphere and Ha filters Observe prominences and surface Chromosphere details using a simple plug in device that fits between the 2 star diagonal and the eyepiece Check with the manufacturer to ensure this is all you will need with the particular telescope you are using WARNING LOOKINg AT THE SUN CAN CAUSE SERI...

Страница 15: ...pes of correctors made for the SVX130T one is a flattener and one is a reducer flattener SFF3 Flattener The SVX130T is an f 7 optical system with a 910 mm focal length The SFF3 130 will convert your telescope into a 910 mm focal length f 7 super telephoto lens The SFF3 130 works with cameras with full frame and smaller ccd chips SFFR 72 Reducer Flattener The large SFFR 72 reducer flattener will fl...

Страница 16: ... the lens and replace it with a t ring that has the same size thread as the flattener or reducer flattener The backfocus must include the t ring that is attached to the camera in place of the camera s lens When you add a t ring to your Canon or Nikon DSLR this dis tance from the thread on the t ring to the ccd chip in the camera is about 55mm Our flatteners may be ordered with a 55 mm backfocus Us...

Страница 17: ...this reducer flattener with the appropriate extension tubes and spacer rings will enable it to be used effectively with various cameras on the market If the camera s ccd chip is not spaced correctly from the reducer flattener stars in the corners will appear elongated If you are not sure how to properly set up your reducer flattener and camera call us at 530 823 7796 or email us at mail stellarvue...

Страница 18: ...ng the Lower Tension Control Do not over tighten or the focuser will be harder to focus Upper Tension Control There is an upper tension control that applies addi tional pressure to the drawtube and makes it more stable especially when imag ing with a heavy camera This tension control may be a set screw as shown or a thumb screw Tighten this screw very slightly if needed to stabilize the drawtube U...

Страница 19: ... blowing with the syringe Dust particles can be hard and scratch glass So every bit of dust should be removed before you use a lens cloth Once the lens is clear of any particles use Stellarvue lens cleaner on a Kimwipe or optical cleaning cloth to clean the lens followed by a dry wipe Never spray directly onto the lens as the liquid could migrate around the lens to the inside Apply a small amount ...

Страница 20: ...LONGER SV SHALL NOTIFY THE CUSTOMER SV MAY REPLACE ANY PRODUCT THAT HAS BEEN DISCONTINUED WITH A NEW PRODUCT OF COMPARABLE VALUE AND FUNC TION PRODUCTS THAT HAVE BEEN DAMAGED DROPPED DISASSEMBLED ABUSED MISUSED MISHANDLED SUBjECTED TO TEMPER ATURE OR WEATHER EXTREMES SUBjECTED TO WEAR OR MODIFIED IN ANY WAY WILL NOT BE COVERED BY THIS WARRANTY THIS INCLUDES BUT IS NOT LIMITED TO SUCH ACTIVITIES AS...

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