Stellarvue SVR102T-3FT 102 mm f/7 APO Triplet Refractor Telescope - SVR102T-

Stellarvue   ——   SKU: STE-SVR102T-3FT
$3,841.00 CAD
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Product Info

Stellarvue SVR102T-3FT 102 mm f/7 APO Triplet Refractor Telescope With 3" Feather Touch Focuser

This is the Stellarvue 102 mm f/7 SVR102T-3FT APO Triplet Refractor Telescope featuring the Starlight Instruments 3" Feather Touch dual speed, rack and pinion focuser (FFT3035B-A). This instrument uses the sharpest and highest contrast 102 mm objective (lens) Stellarvue have ever offered. The focuser is threaded for photographic field flatteners (optional) and has 1 1/4” and 2” compression ring visual adapters.

The SVR102T-3FT is the "Feather Touch focuser" version of this telescope. The fully baffled, lightweight carbon fiber tube produces a telescope that is very light. The OTA is 9 lb and rings weigh an additional 0.8 pounds each. The focuser unthreads resulting in a tube assembly that is only 20.25” 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 and comes with our interferometric test report showing it is 0.95 Strehl ratio or higher. Dedicated photographic field flatteners make this not only the best 4” visual scope but an outstanding imaging platform as well. This scope includes a Starlight Instruments 3" Feather Touch Focuser (FFT3035B-A).

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 102 mm Apochromat! The Stellarvue SVR102T-3FT features a 102 mm f/7 (714 mm focal length) fully multi-coated, 3-element objective lens using an Ohara FPL-53 center element. You can order this telescope with or without an optional Stellarvue 2" Dielectric (mirror type) Star Diagonal (D1029ED). Use the drop-down menu to choose which version you wish to purchase.

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 ratio optics make the 80 apo Stellarvue's widest field imaging telescope, and the visual performance is simply stunning.

They 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! Balance problems are gone!

Tube and dew shield: The SVR102T 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.

A Starlight Instruments Feather Touch focuser provides precision positioning and is easy to use, and it also permits effortless focusing without shaking your telescope. This is a heavy-duty rack and pinion unit designed to carry a higher capacity. The focuser is fully rotating with a wide groove for smooth and precise rotation. The Feather Touch 10:1 reduction ratio and precision of design make this possible. Since there is virtually “Zero Backlash”, focusing at even high power is done without degrading your pointing. Feather Touch focusers are designed and built to last a lifetime.

The brake option was designed to allow users of refractor scopes the ability to gradually increase the friction between the pinion and the drawtube. In the non brake version design a thumb screw locks the pinion shaft and also increases the amount of drag on the drawtube. This system however has very little range when trying to control the drag.

The brake consists of an internal leveraged leaf spring that is tightened with a thumbscrew, thereby allowing a much greater control of the drag. The same thumbscrew is also used to lock the pinion shaft. The leveling base is used to collimate (align with the optical axis) the focuser. There are 4 screws that hold the base to the scope and 4 screws that push against the scope. These work to "push-pull" the base to adjust collimation.

Fine Focus Reduction Unit: This is the unit that allows very accurate focusing. It is typically a 10:1 planetary reduction assembly that makes focusing extremely precise and easy. Feather Touch were the original developer of this system for telescope use; it's the key to any of these focusers that allows precise focus with unparalleled reliability.

Aluminum hinged rings: The SVR102T comes with two heavy duty, hinged 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 TP14 rail for telescope mounts using the Vixen style rail or use the optional TP6 for mounts that use the larger Losmandy style rail.

Case: The SVR102T comes with a thickly padded, C9S airline carry-on case. The case holds the telescope and many optional items including a diagonal, eyepieces and a field flattener. Outside dimensions: 32” X 9 1/2” X 9 1/2”; Inside dimensions: 29 3/4” X 6 1/2” X 6 1/2”

A 102 mm (4") refractor gathers 213 times the amount of light the naked eye does. Although Dawes limit states maximum power for telescopes under good conditions is about 250 power for an 102 mm telescope, you can exceed this power on a steady night. This is a true Apochromatic triplet capable of high power when conditions permit. The only real limiting factor under steady seeing conditions is the light gathering limitation of this telescope.

Stellarvue telescopes and accessories are covered by a two year warranty. But it does not stop there. Since Stellarvue is a telescope manufacturer, they can repair your telescope for a very nominal fee years after it goes out of warranty, or should you accidentally drop it on concrete, or otherwise damage it. Buy a Stellarvue Telescope with confidence; their customer care is legendary.

Zygo Interferometer Optical Test Report INCLUDED: This test report shows the optic in the telescope purchased is 0.95 Strehl ratio or higher. This is Stellarvue's standard for all their current production of Apo triplets. Not a common quality feature that's available from other manufacturers!

NOTE: The tripod shown in photo is for illustration only; tripod is NOT included.


OBJECTIVE: 101.5 mm clear aperture, 714 mm focal length (f/7), Apochromatic triplet with Ohara FPL-53 center element - meets 0.95 Strehl ratio minimum standard, Zygo Interferometer test report is included with each telescope
TUBE ASSEMBLY: Lightweight, fully baffled, carbon fiber tube and dewshield; Painted ultra flat black inside. 105 mm diameter
DIMENSIONS: The main tube is 105 mm in diameter - the complete telescope is about 20.25” long in travel mode, with focuser removed, and 24" long focuser in place (dewshield retracted), and 29" with dewshield extended
DEW SHIELD: Dew shield is 5" (126 mm) in diameter
WEIGHT: The optical tube assembly weighs 9 lb with 2.5” focuser and 2” adapter; the dual rings weigh about 1.6 lb total
FOCUSER: 3" dual speed Feather Touch rack and pinion focuser with 2" and 1.25" compression ring adapters - precision rack and pinion focuser has better stability and higher lifting capacity than 2" import Crayford focusers
RINGS: Custom Stellarvue R105SET precision hinged rings - Holes are spaced 1.5” and 60 mm apart respectively, with one in the center
PLATE/RAIL: Optional purchase
CASE: The SVR102T comes with a thickly padded, C009S nylon airline sized carry-on case. The case holds the telescope and many optional items - Outside dimensions: 32” X 9 1/2” X 9 1/2”; Inside dimensions: 29 3/4” X 6 1/2” X 6 1/2”
DIAGONAL: Optional purchase
FINDER: Optional - F001 red dot finder and the F002 multi reticle finder
FIELD FLATTENER: Optional - Recommend the SFF7-25 or SFF3-25 focal reducer/field flattener
LIGHT GAIN: 213X (Human eye = 1)
THEORETICAL RESOLUTION: 1.14 arcsec (Meets the Dawes limit)
Stellarvue SVR102T-3FT 102 mm f/7 APO Triplet Refractor Telescope - SVR102T- for $3841.00 at Khan Scope Centre Stellarvue SVR102T-3FT 102 mm f/7 APO Triplet Refractor Telescope - SVR102T- for $3841.00 at Khan Scope Centre Stellarvue SVR102T-3FT 102 mm f/7 APO Triplet Refractor Telescope - SVR102T- for $3841.00 at Khan Scope Centre

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