We have completed and hand figured a supply of 80 mm f-6 objectives. This model is built when you order and ships in 3-4 days. Click here for our online operator's manual: SVX080T
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This is the Stellarvue 80 mm f-6 apo triplet, now made using a Starlight Instruments 2.5" dual-speed rack and pinion focuser. The purchase price also includes:
- Two adapters (1.25" and 2")
- Two finder scope shoes
- American-machined CNC mounting rings
- Heavy duty C020 case
This is not a mass-produced scope using inferior glass and sloppy mechanics. Our 80 mm apo triplets (SVX080T-25FT and SVX080T-3SV) use the sharpest, most consistent, and highest contrast 80 mm apochromatic triplet lenses we have ever offered. For this model, the focuser is threaded for the new, optional Stellarvue SFFX-1 photographic field flattener.
Our 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 of aberrations commonly seen in mass-produced optics. To attain this level of optical accuracy we must go beyond machine polishing. Our experienced opticians use specially made tools to hand-figure objectives here in our optical shop in Auburn, CA. 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. Stellarvue Premier (SVX) 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 individual objective.
The Stellarvue SVX080ST-25FT features an 80 mm f-6 (480 mm focal length) fully multi-coated, 3-element objective lens with an Ohara FPL-53 center element.
Each lens focuses light precisely, and the extreme broadband coatings on each surface enhance it even further. The stars appear vivid and the background, velvet black. Since these coatings transmit more than 99% in the visual spectrum and far above and below it, reflections seen on CCD images are eliminated. Relatively fast speed and high-Strehl optics make the 80 apo an excellent wide field imaging telescope as well. The visual performance is simply stunning.
Tube and dew shield: The standard model (SVX080ST-25FT) comes with an aluminum tube and dew shield that is finished in Instrument White. Fittings are black anodized aluminum. The dew shield retracts, reducing the length of the telescope for storage. Extending the dew-shield minimizes dewing of the objective at night and serves as a glare shade during the daytime.
Internal tube treatment: The inside of the main tube assembly is painted "ultra flat black" and is baffled to eliminate tube wall reflections.
Difference between aluminum and carbon fiber tubes: The aluminum tube of the SVX080ST is nearly the same weight as a composite tube. We feel that aluminum is is the best material for this particular telescope, as it cools down rapidly and allows for perfect alignment through precise CNC machining.
Feather Touch 2.5" focuser: When imaging with a small lightweight telescope, risers and a long rail are needed to attain balance. Imaging also requires a field flattener. Since this 80 apo triplet model is intended as a lightweight visual telescope that can also be used for imaging, these items are sold separately.
The 2.5" focuser on this model is a heavy-duty rack and pinion unit designed to carry 13-15 pounds. It has an ultra-smooth (10:1 Ratio) fine focus control to attain perfect focus every time. An internal brake system allows the user to adjust capacity. The focuser fully rotates with a wide groove for smooth, precise rotation. All of these features add up to one of the finest dual-speed focusers on the market today.
(The SVX080T-3SV comes with risers, long rail, field flattener, and 3" SV focuser included in the purchase price. While it costs $400 more than the 25FT, you receive $428 in upgrades necessary for imaging.)
Aluminum hinged rings: The SVX080T comes with two-hinged, American-made, CNC-machined 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 TP014 rail for telescope mounts with a Vixen style rail, or the optional TP006 for mounts with the larger Losmandy style rail.
Case: The SVX080T comes with a thickly-padded airline carry-on case (C020). Exterior dimensions: 22" x 9.5" x 7.5". Interior dimensions: 19.5" x 6" x 5".
Light gathering and magnification power: An 80 mm refractor gathers 131 times more light than the naked eye. Although Dawes limit states maximum power for telescopes under good conditions is about 189 power for an 80 mm telescope, you can exceed this power on a steady night. This is a true apo triplet, capable of high power when conditions permit. See our list of recommended accessories below to make the best choice for eyepieces.
Two-year warranty and Stellarvue service: We are with you for life. Stellarvue telescopes and accessories are covered by a two-year warranty, but our service does not stop there. Since we are a telescope maker, we can repair your telescope for a nominal fee even years after the warranty expires, should you accidentally drop or otherwise damage it. Buy a Stellarvue telescope with confidence - our customer care is legendary!
What else do you need?
To use your telescope visually, you will need:
- Star diagonal
- Mount and tripod
- Finder scope and adjustable finder scope rings
To use your telescope for astrophotography, you will need:
- Photographic field flattener designed for your specific telescope model
Here are the specific items we recommend for using this telescope visually:
Star Diagonal: 2" Dielectric Star Diagonal (D1040Q)
High power eyepiece for planets, double stars, and close views of the moon. We recommend either the EOP 04.9, the EUW 04.0, or the EOP 03.6. Select the one with the widest field of view you can afford.
Low power, wide field eyepiece for larger extended objects, losing yourself in the star fields of the Milky Way, etc. We recommend one of two options:
- If you are using a go-to computerized telescope mount, the E7026R can serve a dual purpose. This eyepiece provides a wide 70-degree field of view, and also has a built-in crosshair reticle, which aids in centering the three stars when your telescope is set to operate in go-to mode. You can also purchase an illuminator for the eyepiece to make it easy to see the crosshairs. This is a popular eyepiece due being economical and having the crosshair reticle.
- Or, for better overall correction and the widest field of view, get the EOP 20.0.
Mount and Tripod:
Easy to use alt-azimuth mount - For use with a heavy duty camera tripod, such as Manfrotto 475.
Computerized motor-driven equatorial mount and tripod - Portable and economical
Here is the specific flattener we recommend for using this telescope for astrophotography:
- SFFX-1 universal field flattener
Please note: Each camera (and even each t-ring) has different spacing. We want to make it as easy as possible for you to determine which spacers and/or adapters you might need for your specific camera, so please call us at (530) 823-7796 if you have any questions. We will assist you in getting the correct parts in order to attain the best images.
Stellarvue 80 mm apo triplet lens with Ohara FPL-53 center element; SVX .98 or higher Strehl, Zygo test report included; 80mm clear aperture, 480 mm focal length (F-6)
Lightweight aluminum tube and dew shield in Instrument White
The main tube is 90 mm in diameter. The complete telescope is 18 3/4” long with dew shield extended and 16” long when retracted.
Optical tube assembly approx. 5.8 lbs; dual rings approx. 1.2 lbs total
2.5" dual-speed Stellarvue rack and pinion focuser with 1.25" and 2" compression ring adapters; may be used with the SFF3 flattener but not with the SFFR-74X reducer
4" (102 mm) diameter fully-retracting dewshield with cap
Optional. We carry the F001 red dot finder and the F002 multi-reticle finder.
Optional. If you need a Viven style rail, use the TP014. If your mount requires the wider Losmandy style (D) rail, use the TP006.
Stellarvue R090SET precision hinged rings. Each ring has five 1/4-20 holes top and bottom, with one in the center and two spaced 1.5” and 60 mm apart.
Thickly-padded C020 airline carry-on case; exterior dimensions 22" x 9.5" X 7.5"; interior dimensions 19.5" X 6" X 5"
Optional. NOTE: You can purchase our 2" Quartz Dielectric diagonal upgrade for only $199 when ordering simultaneously with the telescope (click option above when adding to cart). The upgraded diagonal is the same as the D1040Q deluxe dielectric diagonal, except it does not come with a 1.25" adapter since the telescope already has one.
Flat field with field flattener: 43 mm
The fully illuminated Image Circle with 2.5" focuser is less than 43 mm since this telescope uses a 2.5" focuser. This can be compensated for by taking flats. If you want a true full-frame 80 mm, a 3" focuser is required. Our SVX080T-3SV is designed specifically for imaging and includes a 3" focuser.
131x (human eye = 1)
1.5 arc sec (Dawes Limit)
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 firstname.lastname@example.org 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.
3 Reviews Hide Reviews Show Reviews
This refractor has it all: great optics, solidly built, and well designed. It is also light in weight, making it a great grab-n-go scope. It took me no time at all to start taking captures with my CCD camera of the galaxies and nebulae. This scope has an incredible field of view and the deep space objects were stunning looking both visually and with the camera. Features like the built-in dew shield and micro-focus knob makes this scope a pleasure to use. I do not think you need an optical finder scope for this refractor but using a reflex finder can be helpful. So far, I have also been very impressed with the customer service provided by Stellarvue. Overall, I could not have made a better choice.
I spent almost a year going back and forth over this scope and many others. I decided to finally pull the trigger. I couldn't be happier with my choice. Upon opening the well done packaging I found the scope just plain feels good. Everything works smooth, the fit and finish is spot on. After waiting 3 days for the clouds to lift, I was amazed by the views. I highly recommend that you don't wait as long as I did.
When I received my scope and opened the box I was very impressed by the level of quality and performance of my SV80ST. The scope was very solidly built and came with a threaded cap for the hood. The included case was good quality and fit everything I wanted to out in it and more. The performance also was spot on. Excellent value.