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Stellarvue's most economical 4" apo refractor, the SVX102D

Deposit for Stellarvue SVX102D

$500.00

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SKU:: Deposit for SVX102D
Width:: 42.00 (in)
Height:: 15.00 (in)
Depth:: 15.00 (in)

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Product Description

Please note: Introductory price ends soon.

In 2021, Stellarvue is introducing the highest performing 4" and 5" doublet apos we have ever made. These limited runs of our new SVX series doublets are made with super low-dispersion and lanthanum elements. Every objective is precisely figured in our optical shop until it reaches .99 Strehl or better. This entire process takes about a year to complete with six months spent figuring each lens to perfection. To see this process in action, watch our YouTube video.

Price: The introductory price for this hand-crafted refractor is only $1895 with the Stellarvue 3" dual speed, rack and pinion focuser. It is also available with a 3" Feather Touch focuser for $500 additional. You can also select our heavy duty C009S travel case above for only $99 additional. (This case is $189 when purchased separately).

How to order: We are now taking $500 deposits for this instrument. The balance is due when your telescope is finished and we are ready to ship. Placing an order on this page charges you the deposit and gets you on the wait list. Your place in line is determined by the date and time at which you got on the list. If you cancel the order before your telescope is ready, we will credit your account and the funds can be used for other Stellarvue purchases.

Waiting Period: Do not order this telescope if you are in a hurry or cannot tolerate unexpected delays. Our priority is optical accuracy rather than speed. Our estimation of of the delivery date for telescopes ordered now is currently by the end of this year. Sometimes, however, unforeseen delays happen. One thing is certain, the sooner you order, the sooner you will receive yours. The deposit places you on the wait list based on the date you placed your order. The balance is due when your telescope is completed and ready to ship.

Financing: Since this telescope is not immediately available it cannot be financed. However, when the telescope is ready to ship, financing for the balance can be arranged.

What's included? This is a premier, high-performance, lightweight 4” (101.5mm) f-7 (714mm focal length) air-spaced apo doublet. The telescope includes:

Your choice of either a Stellarvue 3" focuser or a 3" Feather Touch focuser.
2" and 1.25" compression ring adapters
Heavy duty cnc machined mounting rings
FB finder scope dovetail mounting base

Optics: These SVX series optics are rated at .99 - .996 Strehl with excellent optical correction of aberrations commonly seen in mass-produced optics. Bringing our optical figuring in house, we have reduced spherical error, astigmatism, coma and trefoil by a factor of five. To reach this level of consistent 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. Stellarvue Premier (SVX) Series refractors are specifically made for the astronomer who recognizes the best when they see it. Each SVX102D refractor will come with a color Zygo interferometric test report taken at full aperture in our shop, documenting the accuracy of your completed objective.

Specifications

FOCUSER
Comes standard with a Stellarvue 3" dual speed, rack and pinion focuser.

OBJECTIVE LENS
101.5mm clear aperture, 714mm focal length (f-7), air spaced apochromatic doublet using a super low dispersion element with a matching Lanthanum element.

LIGHT GAIN
213X (human eye = 1)

TUBE ASSEMBLY
Lightweight, fully baffled, aluminum tube and dew shield. Painted ultra flat black inside. 105mm diameter main tube.

DEW SHIELD
4-3/4” diameter, 8-5/16” long retracting aluminum dew shield with cap.

COATINGS
Extreme broadband, full multi-coatings on each surface transmit more than 99.5% in the visual spectrum and far above and below it. The reason to extend beyond the visual spectrum has to do with imaging. CCD and CMOS detectors in cameras record beyond the visual spectrum. Broadband, full multi-coatings eliminate unwanted reflections seen on CCD images taken through telescopes that have inferior coatings.

DIMENSIONS
With the dew shield retracted the telescope is 21 1/2" long. This is airline carry-on size for most aircraft. With the dew shield extended, the length is about 26 1/2". If traveling by air and the airline has a shorter carry-on length the focuser may be unthreaded by hand reducing the length to about 17 1/2".

WEIGHT
About 9 pounds with 2” adapter and 1 1/4" adapter. Rings weigh .9 pounds each.

ALUMINUM HINGED RINGS
The telescope is supplied with our CNC aluminum mounting rings. Each ring has five threaded holes top and bottom. Threaded holes are 1/4-20. There is one center hole, two holes spaced 1.5" apart, and two holes spaced 60mm apart. Use the optional TP010 rail for telescope mounts using the Vixen style rail, or the optional TP009 for mounts that use the larger Losmandy style rail

OPTIONAL ACCESSORIES

In addition to the supplied accessories, you will need the following:

1. For Visual Use:

Our finest visual accessories may be purchased with the telescope at a discount when the telescope is finished.

2. Mount and Tripod options:

M002CW Visual-Use Mount
Celestron AVX Mount/Tripod Lightweight mount with a go-to computer.
Losmandy GM811G. Ideal for Imaging

3. Optional Case:
Our C009S optional, heavy duty, thickly-padded Nylon hard case comes with a heavy duty zipper.

4. Field Flattener:
Doublets that are this well corrected pretty well match the visual performance of a triplet when in focus. For this reason many visual uses prefer doublets. A triplet is better suited for imaging and we recommend the SVX102T if you will be using this telescope for imaging. To image with this telescope, you need either a photographic field flattener (SFFX-1 for SVX102T) or a photographic flattener/reducer, (SFFR.74-102T) and your camera. Imaging the night sky also requires an accurate guiding mount, off-axis guider, or a guide scope with a guiding camera. The SFFX-1 for SVX102T converts the telescope into a 714mm f-7 astrograph/telephoto telescope with a 43mm image circle. The SFFR.74-102T converts the telescope into a 535mm f-5.25 astrograph/telephoto lens with a 40mm image circle.

5. Finder Scope:
For easily locating objects at night we recommend our top-rated 50mm optical finder scope. To mount the finder scope you will need our R050DA adjustable mounting rings. Our EI002 reticle illuminator allows you to see the crosshair reticle in the eyepiece at night.

6. Motorized Focuser Option

LIGHT GATHERING AND MAGNIFICATION POWER

WARRANTY

Other Details

STELLARVUE 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 mail@stellarvue.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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