Stellarvue's SV70T Imaging System. Our widest field telescope system for imaging with cameras using APS and smaller chips.
SV70T-IS2 Operators Manual: Click here for our online manual SV70T-IS2
The SV70T-IS Imaging System comes with a Stellarvue SV70T-25SV f-6 apo triplet featuring our latest version of the Stellarvue 2.5" dual speed, rack and pinion focuser (FSV-25A). This instrument uses the sharpest and highest contrast 70 mm lens we have ever offered. Read Jon Talbot's review of the SV070T as it appeared in Astronomy Magazine. Also included is our dedicated .8X photographic field flattener/reducer converting the telescope into a 336 mm f-4.8 astrograph. This system also comes with heavy duty dual rings and an airline carry-on sized travel case. This is not a mass-produced scope using inferior glass and sloppy mechanics. This is a truly premier 70 mm apochromat.
The Stellarvue SV70T-25SV features a 70 mm f-6 (420 mm focal length) fully multi-coated, 3 element objective lens with a Hoya FCD100 center element.
Each lens focuses light precisely and in addition the extreme broadband coatings on each surface enhance it even further. Using it visually, 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. The relatively fast speed and high strehl optics make the 70 apo our widest field imaging telescope and the visual performance is simply stunning.
We now offer riser blocks with or without longer rails. These allow the telescope to balance properly when camera gear is used that moves the center of balance over the focuser. The riser blocks raise the telescope 1.5" above the rail and this allows the rail to extend under the focuser and camera. The telescope can then be moved forward and balanced. Learn more about Stellarvue Riser Blocks here.
Tube and dew shield: The SV70T 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 when being stored. 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.
2.5" Stellarvue visual/photographic focuser: Many years in the making, our new smooth and stable dual speed, 2.5” focuser provides a full 2.875" of travel. This focuser is perfect for visual use and imaging. The 2.5" focuser 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. All of the features add up to one of the finest dual speed focusers available today.
Aluminum hinged rings: The SV70T comes with two heavy duty, hinged aluminum mounting rings. Each ring has three screws top and bottom. Threaded holes are 1/4-20. There is one center hole, two holes spaced 1.5" apart. Use the included rail for telescope mounts using the Vixen style rail or use an optional TP6 for mounts that use the larger Losmandy style rail.
Case: The SV70T comes with a thickly padded, C20, airline carry-on case. Outside dimensions: 22" x 9.5" X 7.5". Inside dimensions: 19.5" X 6" X 5".
Field flattener/focal reducer: The SV70T imaging system includes our SFFR-70APO field flattener/reducer. To attach it, unthread the 2" adapter from the rotator at the rear of the focuser and thread the SFFR-70APO in its place. The SFFR-70T is threaded with a standard camera attachment t-thread (M42 X .75) so it will work with a standard DSLR t-adapter. If you are using a ccd camera, our SFFR-70APO is made to work with a camera that has a t-thread (M42 X .75) and has either a 66 mm or 55 mm backfocus. If your camera has a different backfocus, Stellarvue sells a variety of t ring extension tubes and spacer rings to make up the difference. We want to make this as easy as possible for you so please call us at (530) 823-7796 if you have any questions and we will assist you in getting the correct parts in order to attain the best images.
Riser Block and Vixen long rail: This is the secret to balancing when using a small, short telescope and a camera. Using riser blocks the telescope is held above the rail so a camera will fit in place, the rail is long so the telescope can be moved forward of center permitting better balance when a camera is mounted on the rear.
Light gathering and magnification power: A 70 mm refractor gathers 100 times the amount of light the naked eye does. Although Dawes limit states maximum power for telescopes under good conditions is about 165 power for a 70 mm telescope, you can exceed this power on a steady night. This is a true apo triplet capable of high power when conditions permit. The only real limiting factor under steady air is the light gathering limitation of this telescope. Check the Recommended Accessories section 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 it does not stop there. Since we are a telescope maker, we can repair your telescope for a very nominal fee years after it goes out of warranty, should you accidentally drop it on concrete or otherwise damage it. Buy a Stellarvue Telescope with confidence. Our customer care is legendary.
Optical Test Report INCLUDED: This test report shows the optic in the telescope purchased is .95 Strehl or higher. This is our standard for all of our current production of apo triplets.
OPTIONAL VISUAL ACCESSORIES
Save $50 when you choose the option at the top of this page to the right of the telescope picture. Learn more on our 2" Dielectric Star Diagonal page.
Low Power, Wide Field Eyepiece for larger extended objects, loosing 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 it has a crosshair reticle built in. This reticle will assist you in centering the three stars when you set up your telescope to operate in go-to mode. You can optionally purchase an illuminator for the eyepiece to make it easy to see the crosshair. Since this eyepiece is economical and has the crosshair, many of our customers like using it. For better overall correction and the widest field of view get the EOP 20.0.
Mounting your telescope:
Easy to use alt-azimuth mount. Use this with a heavy duty camera tripod such as Manfrotto 475.
Computerized motor driven equatorial mount and tripod that is portable and economical
To use your telescope in taking astro-photos we recommend our dedicated focal reducer/field flattener. Please note: each camera (and even each t-ring) has different spacing. We want to make this as easy as possible for you so please call us at (530) 823-7796 if you have any questions and we will assist you in getting the correct parts in order to attain the best images.
Below: Images courtesy of Jon Talbot taken with an SV70T f-4.8. His comment, "This scope is like a 300mm camera lens but much better corrected. The short focal length really makes this scope easy and fun to use."
70 mm clear aperture, 420 mm focal length (F-6), apochromatic triplet with Hoya FCD100 center element. Meets our .95 Strehl minimum standard, Zygo test report included.
Machined aluminum tube painted Instrument white outside, ultra flat back inside.
The main tube is 82 mm in diameter. The complete telescope is about 14 3/4” long with dew shield extended and about 12” long when retracted.
Dew shield is 3.5" (88.6 mm) in diameter.WEIGHT:The optical tube assembly weighs 4.4 lbs. 5.6 pounds with dual rings and Vixen rail.
2.5" dual speed Stellarvue rack and pinion focuser with 2" and 1.25" compression ring adapters. Precision rack and pinion focusers have better stability and a higher lifting capacity than 2" import Crayford focusers.
Custom Stellarvue R70SET precision hinged rings. Each ring has three 1/4-20 holes top and bottom with one in the center and two spaced 1.5” apart.
Includes vixen style rail.
The SV70T comes with a thickly padded, C20 airline carry-on case. Outside dimensions: 22" x 9.5" X 7.5". Inside dimensions: 19.5" X 6" X 5".
Included. SFFR-70APO focal reducer/field flattener.
Optional. Please note, you can purchase our 2" Quartz Dielectric diagonal upgrade for only $199 above. 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 carry the F001 red dot finder and the F002 multi reticle finder.
LIGHT GAIN: 100X (Human eye = 1)
Image Circle with .8X Reducer/Flattener: 27mm
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.
Videos Hide Videos Show Videos
2 Reviews Hide Reviews Show Reviews
Received in good shape within 10 days of ordering. Carefully packed, easy to assemble. Have used it now as a grab-and-go system on the M1V mount and a carbon-fiber photo tripod, with the F002 red-dot finder (only about 12 lb total weight!) Works perfectly and I am able to find objects easily on the 26 mm (reticle) eyepiece with the aid of the RD finder. No CA detectable; contrast and resolution are impressive. The standard dual-speed focuser is remarkably responsive, precise and steady. With the Optimus 9 mm eyepiece, the Albireo double and the main four stars of the Trapezium in Orion are easily resolved every night I have tried it. Bright (and not so bright) open clusters (Brocchi's, Xmas Tree, Beehive, etc.) are also easy and bright. On the other hand, it is clear that 70 mm is not enough aperture to see the Andromeda galaxy (or any other faint DSO) as anything other than a faint-fuzzy, at least form my light-polluted location, so will have to try long-exposure photography for that. It should be noted that the scope is so short that it tends to be tail-heavy with large (Optimus series) eyepieces; for proper balancing a long dovetail, mounted on the available riser blocks, is needed. All in all, I am delighted with this purchase and would recommend it without reservations.
This is a very well made scope! I just had my first two imaging sessions this past week and the scope is awesome! Together with the reducer and risers, camera and orion short tube guide scope - 15.6 lbs. Terrific widefield optic and did I say, well made!