This is the Stellarvue 70 mm 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. The focuser is set up to accept our optional dedicated .8X photographic field flattener/reducer converting the telescope into a 336 mm f-4.8 astrograph. Order the SV70T reducer/flattener on the SFFR70APO Page.This telescope 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 an Ohara FPL-53 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.

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, C70 airline carry-on case. The case holds the telescope and many optional items including a diagonal, eyepieces and a field flattener. Outside dimensions: 17" x 13.5" X 8". Inside dimensions: 14" X 10" X 5.5". 

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.  


70 mm clear aperture, 420 mm focal length (F-6), apochromatic triplet with Ohara FPL-53 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.
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 has 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.
Case: The SV70T comes with a thickly padded, C70 airline carry-on case. The case holds the telescope and many optional items including a diagonal, eyepieces and a field flattener. Outside dimensions: 17" x 13.5" X 8". Inside dimensions: 14" X 10" X 5
Optional. We recommend the SFFR70 focal reducer/field flattener.
100X (Human eye = 1)

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