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MAKING WORLD-CLASS OPTICS

At Stellarvue we believe you ‘get what you pay for,’ and cater to those who are looking for a high-quality 

product with reliable optics. While making commercial grade mass-produced optics is relatively easy and fast,

it results in unreliable products. That’s why we take the time to make each apo-triplet lens as close to perfect

as possible.  

People often ask us what type of glass we use, which is the

wrong question. While we use the best, lowest-dispersion glass

made, glass type says nothing of its consistency or 

homogeneity. Bad glass makes bad optics, which is why it is

important to test each optic individually. 
Stellarvue is a division of Auburn Precision Optics (APO). In 

addition to making telescopes we make optics for defense and

space science. This has allowed us to expand our optical and

CNC machine shops here in Auburn, California. Using state of

the art testing equipment has significantly improved the optical

prowess of all SVX telescopes. 
Mechanical quality is of extreme importance in making a world-

class instrument. Using CNC machines and high-quality materi-

als makes a substantial difference. Our mounting rings for apo

triplets 80 mm and bigger, for example, are machined in our shop using 6061-6 aluminum and stainless steel.

These rings are far stronger than imported cast aluminum rings.  

What makes the 

SVX Premier

Series so unique?

Each SVX refractor telescope is individually assembled and tested using our advanced equipment to ensure

they meet our highest optical and mechanical standards. Our entire SVX line of telescopes use optics that are

hand figured in our optical shop in Auburn, California. After machine polishing we map the optical surfaces

using our Zygo Phase Shifting Laser Interferometer. This equipment is capable of measuring surfaces far more

accurately than test plates or other conventional methods. Using these data, we then make fine corrections by

hand and machine using special tools to eliminate zones, trefoil, and other optical defects as we bring up the

optical accuracy as high as possible. When all of

this work is completed and the lens is essentially

perfect, we take one final measurement of the ob-

jective and print the report for the customer who

buys it. All SVX objectives are accompanied with

its unique Zygo test report, boasting an extremely

high Strehl ratio with a smooth figure. SVX Pre-

mier Apo Triplets are for the discerning (experi-

enced) astronomer who recognizes the crème de

la crème when they see it.

Why designate this series with an “X”?

We have made a number of significant break-

throughs these past two years in developing this

series. It took a major investment in staffing, CNC

machines, conventional spindles and a great deal

of individual commitment to reach this extreme

level of accuracy in a production instrument. For

this reason, we decided to differentiate these tele-

scopes with an “X” to signify extreme. These are

the telescopes to buy if you wish to view the uni-

verse visually and image it using matched field

flatteners that turn these exceptional lenses into

wide field astrographs. 

3

Alex our Production Manager using Stellarvue’s

Zygo Phase Shifting Laser Interferometer to test

and adjust a Stellarvue Objective lens. 

Sample screenshot taken during our Zygo Interferometer testing.

Your SVX152T telescope came with a printout just like this but it is

of its own test to verify its high optical standard. 

This is your telescope’s report card. 

Summary of Contents for SVX152T PREMIER APO TRIPLET

Page 1: ...urn Precision Optics WWW STELLARVUE COM 11802 KEMPER ROAD AUBURN CA 95603 U S A PHONE 530 823 7796 FAX 530 823 8121 STELLARVUE STELLARVUEC SEEING IS BELIEVING The mission of Stellarvue is to inspire a...

Page 2: ...with dew shield retracted and 52 long when extended Dew Shield 7 3 8 diameter 11 3 4 long retracting aluminum dew shield in Instrument White with black an odized fittings Weight OTA 23 2 pounds Rings...

Page 3: ...tested multiple times to ensure perfection Please store and use it as you would any optical device If dust accumulates on the lens you may use a bulb type blower to remove it Always be careful to avoi...

Page 4: ...in Auburn California After machine polishing we map the optical surfaces using our Zygo Phase Shifting Laser Interferometer This equipment is capable of measuring surfaces far more accurately than te...

Page 5: ...ur knife Carefully remove the tele scope from the cardboard box and set it on a secure surface Unzip or unlatch the case to reveal the tele scope inside Unpack the telescope from its case and make sur...

Page 6: ...of the mounting rings using 1 4 20 socket cap head screws supplied with the rail Gener ally telescope mounts use one of two different style mounting rails Select the proper size of rail for the mount...

Page 7: ...ll need to balance it in both axes The mount manual explains how to do this If you are using an equatorial and or go to computerized mount you will need to align the telescope according to the mount m...

Page 8: ...s means objects appear 60 times closer The smaller the focal length of the eye piece the higher the power becomes So our 4 7 mm eyepiece provides 255 power 1200mm 4 7mm The ability of a telescope to m...

Page 9: ...ause your telescope to exhibit false color That color is not in the telescope but above you Moisture in the atmosphere may act like prisms and brighter objects will appear with a reddish color on one...

Page 10: ...25 Eyepieces Optional 1 25 Filter DSLR Camera T Ring T Ring Extension tubes required for your CCD camera call Stellarvue for assistance CCD Camera Extension tubes required for your CCD camera call St...

Page 11: ...mm Optical Finderscope The SVX152T is supplied with a TP013 Losmandy style rail We recommend this for its greater rigidity We recom mended the following mounts for the SVX152T 1 Losmandy G11 2 Paramou...

Page 12: ...ng with the syringe Dust particles can be hard and scratch glass So every bit of dust should be removed before you use a lens cloth Once the lens is clear of any particles use Stellarvue lens cleaner...

Page 13: ...ard rifle scope mount Use the F002E base to mount the finder to one of the two telescope mounting rings While the brightness is controlled with a 7 position switch some users feel it is too bright to...

Page 14: ...e and rings 2 Tighten mounting shoe Thumbscrews 1 S li d e in to s h o e There are six thumb screws that hold the finderscope These thumb screws allow the user to adjust the finderscope up down left r...

Page 15: ...ey show extremely fine detail in sunspots and faculae on our nearest star 3 Daystar Chromosphere and Ha filters Observe prominences and surface Chromosphere details using a simple plug in device that...

Page 16: ...wo types of correctors made for the SVX152T one is a flattener and one is a reducer flattener SFF4 Flattener The SVX152T is an f 8 optical system with a 1200 mm focal length The SFF4 152 will convert...

Page 17: ...d replace it with a T ring that has the same size thread as the flat tener or reducer flattener The backfocus must include the T ring that is attached to the camera in place of the camera s lens When...

Page 18: ...ear elongated The SFFRR 72 69 reducer flattener has a 65 mm back focus using an M69X1 rear thread Purchasing various versions of this reducer flattener with the appropriate extension tubes and spacer...

Page 19: ...tightening the Lower Tension Control Do not over tighten or the focuser will be harder to focus Upper Tension Control There is an upper tension control that applies addi tional pressure to the drawtu...

Page 20: ...ONGER SV SHALL NOTIFY THE CUSTOMER SV MAY REPLACE ANY PRODUCT THAT HAS BEEN DISCONTINUED WITH A NEW PRODUCT OF COMPARABLE VALUE AND FUNC TION PRODUCTS THAT HAVE BEEN DAMAGED DROPPED DISASSEMBLED ABUSE...

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