SVX102T-R Operators Manual: Click here for our online manual SVX102T-R
The SVX102T-R is our premier high performance, light weight 4” f-7. (714 mm focal length) air spaced apo triplet refractor. Formerly known and reviewed as the SVR102T, this telescope is identical except the objective lens is now hand figured in our shop in Auburn, CA to an even higher optical standard and this model comes with an improved Stellarvue 3" focuser with 2" and 1.25" compression ring adapters. Many experts have pointed out that the Stellarvue 102 has exceptional optics. Read Dennis DiCicco's review of the SVR102T as it appeared in Sky and Telescope Magazine.
That being said, we have taken the optical accuracy even higher than when it was reviewed! While our former models (without the X designation) were all excellent coming in at .95 Strehl or higher, SVX series telescopes are even more exceptional, placing 98 - 99% of the light precisely where it should be. SVX series Apochromatic Telescopes use objectives that have the highest optical ratings as measured and documented on our Zygo Phase-Shifting Laser Interferometer. SVX series optics are rated at .98 - .996 Strehl with excellent optical correction for aberrations commonly seen in mass produced optics. To attain this level of optical accuracy it is usually necessary for us to go beyond machine polishing. Special tools are made and experienced opticians hand figure objectives here in our optical shop in Auburn California. Stellarvue Premier (X) Series refractors are for the astronomer who recognizes the best when they see it. Each SVX series refractor comes with a Zygo interferometric test report taken in our shop, documenting the accuracy of your objective!
The SVX102T-R employs a fully baffled, lightweight carbon fiber tube making it one pound lighter than the aluminum version. The optical tube assembly is 8.8 lbs and rings weigh an additional .8 pounds each. The focuser unthreads resulting in a tube assembly that is only 19.75” long, well within airline carry-on size limits. Now you can easily take a world class apo refractor on the plane with you! The certified 101.5 mm clear aperture optic is essentially perfect. This is as good as it gets which means you will see or image everything the atmosphere will allow!
The Stellarvue SVX102T-R has been designed as our best dual purpose 4” telescope for both visual and photographic use. Photographic performance with cameras is excellent with the addition of the photographic field flattener. This is among the sharpest 4” class telescopes ever offered. See the Sky and Telescope magazine review of the SVR102T. Also, see the NEAF video that features the 102T.
Fully multi-coated apochromatic triplet objective: Using a 101.5 mm f-7 apochromatic triplet objective, with an Ohara FPL-53 center element, this telescope provides extremely high contrast and reflector-like color correction. To further enhance this high level of contrast, extreme broadband multi-coatings are used on all six air-to-glass surfaces. This boosts contrast, making the stars appear vivid and the background velvet black. These coatings transmit light above and below the visual spectrum. This is important to minimize reflections seen on CCD images.
Lightweight carbon fiber tube assembly: The thin wall carbon fiber tube looks sharp and matches the black anodized aluminum fittings giving this telescope a very high-end, classy look. The dew shield retracts reducing the length of the telescope when being stored. When the telescope is used, this dew shield may be extended to minimize dewing of the objective at night and to serve as a glare shade during the daytime. Since the focuser can be easily un-threaded, the telescope length can be reduced to airline carry on size. This means you can now carry your high end apo on the plane with you.
To compare the differences between an aluminum tube and carbon fiber tube, visit our comparison page.
Internal tube treatment: The main tube interior is painted ultra flat black inside and is properly baffled to eliminate any tube wall reflections. Reflections in the optical path are further reduced using edge blackened objective elements. All of these methods are used to preserve the outstanding contrast of this exceptional apochromatic lens.
3" Stellarvue visual/photographic focuser: Many years in the making, our smooth and stable dual speed focuser provides about 4.5" of travel. This focuser is perfect for visual use as well as imaging. The rear of the draw tube is threaded to accept our dedicated SFF4 photographic field flattener. The Stellarvue focuser is a heavy-duty rack and pinion unit designed to carry a higher capacity. It has an ultra-smooth (8.5:1 Ratio) fine focus control to attain perfect focus every time. An internal brake system and separate tensioner allows the user to adjust capacity. The focuser is fully rotating with a wide groove for smooth and precise rotation. All of the features add up to one of the finest dual speed focusers available today.
Motorized Focuser Option: Optec
Aluminum hinged rings: The SVX102T-R comes with our American made CNC aluminum mounting rings. Each ring has five screws top and bottom. Threaded holes are 1/4-20. There is one center hole, two holes spaced 1.5" apart and two holes spaced 60 mm apart. Use the optional TP010 rail for telescope mounts using the Vixen style rail or use the optional TP6 for mounts that use the larger Losmandy style rail.
C009S Heavy Duty Case: This is our heavy duty, thickly padded Nylon hard case with heavy duty zippers. These cases are substantially more durable than the thin walled Chinese hard cases.
What else do you need? In addition to the supplied accessories, you will need a star diagonal, eyepiece(s) and a mount with tripod and mounting plate.
Light gathering and magnification power: The purpose of a telescope is to gather light and magnify the apparent size of the object being viewed. A 4” refractor gathers 213 times the amount of light of the naked eye. This will reveal faint objects in space. Magnification power (the increase in relative size of the object being viewed) is dependent upon the eyepiece being used. Different eyepieces provide different magnification powers. Since this telescope uses a highly accurate, hand figured objective lens and is triple tested in the USA, these telescopes are free of coma and astigmatism seen in many import telescopes. This provides sharper details when viewing at higher powers. Dawes limit, which is the stated maximum power for telescopes under good conditions is about 250 power for a 4” telescope. But don't be surprised when you exceed this power on a steady night. This is a true apo triplet capable of very high power when conditions permit. Check the Recommended Accessories section to make the best choice for eyepieces.
Two year warranty and Stellarvue Service: Stellarvue telescopes and accessories are covered by a two year warranty. But it does not stop there. Since we are a telescope maker, we can repair your telescope for a nominal fee years after it goes out of warranty should you accidentally drop it. Buy a Stellarvue with confidence. Our customer care is legendary.
Free shipping: Order now and when ready the telescope will ship free to the lower 48 states only. Shipping will be either UPS or Fed Ex whichever has the lowest rate.
3” Stellarvue rack and pinion focuser. Focuser drawtube adapter is threaded for the SFF3 flattener. Comes with 2” and 1.25” compression ring adapters.
101.5 mm clear aperture, 714 mm focal length (f-7), air spaced apochromatic triplet using an Ohara FPL53 center element. SVX .98 Strehl or higher. Test report included.
Lightweight, fully baffled, carbon fiber tube and dewshield. Painted ultra flat black inside. 105 mm diameter main tube.
4-3/4” diameter, 8-5/16” long retracting aluminum dewshield with cap.
OTA: 19.25” long in travel mode (focuser unthreaded), 23.5” long with focuser in place and dewshield retracted; 29” with dewshield extended.
9.8 lbs with 2” adapter and 1 1/4" adapter. Rings weigh .8 pounds each.
Optional. We carry the F001 red dot finder and the F002 multi reticle finder.
American made R105 set with five 1/4-20 threaded holes top and bottom. Holes are spaced 1.5” and 60 mm apart respectively, with one in the center. Made on Haas cnc machines.
Optional. We recommend the TP-10 rail for telescope mounts using the Vixen style rail or use the optional TP6 for mounts that use the larger Losmandy style rail.
C009S Heavy Duty Travel Case
Optional. Please note, you can purchase our 2" Quartz Dielectric diagonal upgrade for only $199 below. The upgrade diagonal is the same as the D1040Q deluxe dielectric diagonal but it does not come with a 1.25" adapter since the telescope already has
Optional. We recommend the SFF4-120T.
213X (human eye = 1)
Image Circle with 3" Focuser and SFF4: 43mm
Image Circle with 3" Focuser and .8X Reducer/Flattener: 25mm
Other DetailsSTELLARVUE LIMITED WARRANTY FOR U.S.A. AND CANADA END PURCHASERS ONLY Stellarvue (SV) warrants that each SV brand telescope and accessory shall be free from defects in materials and workmanship for two years from the date of purchase. SV will repair or replace such product or part thereof, which upon inspection by SV is found defective in materials or workmanship. As a condition to the obligation of SV to repair or replace such product, the product must be returned to SV as specified in this warranty. THIS LIMITED WARRANTY, AND ANY IMPLIED WARRANTIES THAT MAY EXIST UNDER STATE LAW APPLY ONLY TO THE ORIGINAL PURCHASER AND LASTS ONLY AS LONG AS THE PURCHASER OWNS THE PRODUCT. Warranty and repair return requirements: • Proof of purchase acceptable to SV must accompany any return for warranty work. • A return Authorization must be obtained from SV in advance of return. E-mail Stellarvue at email@example.com or call (530) 823-7796 to receive the authorization & packing instructions. • The authorization code must be written on the outside of the container. • All returns must be accompanied by a written note stating the model number of the product, authorization code, name, address, e-mail address and daytime telephone number of the owner, and an explanation of the problem. Replaced parts shall become the property of SV. • The customer shall be responsible for all costs of transportation and insurance, both to and from SV. SV Requirements • SV shall use reasonable efforts to repair or replace any product covered by this limited warranty within thirty days of acceptance. If repair will take longer, SV shall notify the customer. • SV may replace any product that has been discontinued with a new product of comparable value and function. Products that have been damaged, dropped, disassembled, abused, misused, mishandled, subjected to temperature or weather extremes, subjected to unusual wear or modified in any way will not be covered by this warranty. In these instances, this warranty shall be null and void. THESE WARRANTIES REPLACE ALL OTHER WARRANTIES EXPRESSED OR IMPLIED INCLUDING, BUT NOT LIMITED TO THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE. SV MAKES NO EXPRESS WARRANTIES BEYOND THOSE STATED HERE AND DISCLAIMS ALL OTHER WARRANTIES, EXPRESSED OR IMPLIED, INCLUDING, WITHOUT LIMITATION, IMPLIED WARRANTIES OF MERCHANTABILITY, AND FITNESS FOR A PARTICULAR PURPOSE. THE SOLE OBLIGATION OF SV UNDER THIS LIMITED WARRANTY SHALL BE TO REPAIR OR REPLACE THE COVERED PRODUCT, IN ACCORDANCE WITH THE TERMS SET FORTH HEREIN. SV DISCLAIMS ANY LOST PROFITS, GENERAL, SPECIAL, INDIRECT OR CONSEQUENTIAL DAMAGES WHICH MAY RESULT FROM BREACH OF ANY WARRANTY, OR ARISING OUT OF THE USE OR INABILITY TO USE ANY SV PRODUCT FOR ANY PARTICULAR PURPOSE. THIS WARRANTY GIVES YOU SPECIFIC LEGAL RIGHTS AND YOU MAY ALSO HAVE OTHER RIGHTS THAT VARY FROM JURISDICTION TO JURISDICTION. WARNING: LOOKING AT THE SUN CAN CAUSE SERIOUS EYE INJURY AND BLINDNESS. NEVER POINT A TELESCOPE AT OR NEAR THE SUN. VIEWING THE SUN WITHOUT A PROPER SOLAR FILTER MAY RESULT IN BLINDNESS, AS WELL AS DAMAGE TO THE INSTRUMENT. NEVER ALLOW CHILDREN TO USE BINOCULARS OR TELESCOPES DURING THE DAYLIGHT HOURS, UNLESS THEY ARE SUPERVISED BY AN ADULT WHO UNDERSTANDS THE DANGER OF POINTING ANY OPTICAL INSTRUMENT IN THE GENERAL DIRECTION OF THE SUN.
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This scope may well become my forever scope. The views are flawless, almost 3D at times. Build quality is second to none. It strikes an excellent balance between the SV130 I sold(you’re gonna need a bigger mount) and the SV80 I had (not enough aperture). It’s strength is lunar and planetary, but it’s no slouch for the brighter deep sky objects. I really like the focuser. I’ve owned 3 scopes with FT focuser prior. I agree that the FT has the edge, but the SV focuser exudes quality as well. This scope gets my highest recommendation.
I put together an SVR102T, D1035 correct image erecting prism, and a Denkmeier Binotron 27 specifically for wildlife observation, and with the SFF7-25 field flattener for photography. It far exceeded expectations in all regards. There is no comparison with conventional spotting scopes, even the most expensive, and it was far brighter and contrasty than a Questar 3.5 Duplex. On a crisp morning, the black pupils of a wolf's eye (at Yellowstone) were clearly resolved against the dark brown of her irises, a third of a mile away (terrestrial analog to splitting binaries). Add the faint sound of her howl as she throws her head back, and you're right there. Thanks, Stellarvue!
I had owned one of Stellarvue's original doublet apos, the f/8.7 SV-102A. It was (and is) a great scope. But in the interest of upgrading from a doublet to a triplet, for visual observation and eventual astrophotography, I purchased the SVR-102T. The lower weight, lower OTA thermal expansion/contraction and raw beauty of the carbon fiber tube were admittedly also factors in this purchase. I purchased the SVR-102T scope variant with the FeatherTouch 2.5" rack and pinion focuser. It's hard to break the FeatherTouch habit, having used one all these years, albeit the reverse Crayford variety. Plus the focuser rotation feature is advantageous for my numerous club outreach functions, for those height-challenged folks who must otherwise strain to get to the eyepiece and that would otherwise involve loosening and retightening screws that hold the diagonal - an invitation for a potential bad outcome. So the views are, of course, most impressive. But the happy epilog to this story is that I sold my original SV-102A apo to a fellow club member who was invited to the White House (yes, that one) to an astronomy outreach event held by the President - not a bad outcome for a seasoned veteran SV apo scope!
In the past month or so I ordered I ordered and received the SV102mm Apo with Stellarvue focuser, the SV60mm Apo with Stellarvue focuser, and the aluminum surveyors tripod with M2 mount and MEC2 column. When I opened the boxes the quality and finish of everything was first class. And yes, the first thing I said was, "Wow!" Thanks to the weather here in SW Montana I haven't looked at the sky but I've used them for terrestrial viewing and I sure don't have anything to complain about. Quite the opposite. Excellent choice
I have only had a few outings with this telescope, but I can say this is hands down the finest refractor I have ever used. Pinpoint stars that give a 3D effect when used visually. And a mechanical fit and finish that is exquisite.
Thank you Vic and company for producing such quality instruments here in this country.
Beautifully made telescope, ultra smooth and robust focuser, and the views are very sharp with excellent contrast and color. Highly recommended!