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Quality Optics
William optics megrez 90mm APO?

I just purchased a WO megrez 90mm APO. I want to do star testing so I looked up a few web sites on it because ive never done it before and I wanted to test the lenes. They said you should see concentric rings but all I saw was one two rings.The pics they showed had 5-7 rings or so. Also I am getting a very small amount of comet tails on the stars on the very outer edge ( when in focus) . I guess my question is... How Much does the quality of the eyepiece effect testing of the scope? should I be using Neglers.......I dont have one

There's some good basic information on star testing here:

http://www.backyardastronomy.com/appendix/startesting.pdf

http://geogdata.csun.edu/~voltaire/tmb/tmb4.html

A few tips: for a 90mm use a first magnitude star and about 180x magnification. You must have good seeing (steady skies) to perform the test. A green filter may help, even on an apo. A wide field eyepiece like a Nagler is not required; a high quality Plössl or orthoscopic will be fine. Star tests are done in the middle of the telescope's field. Problems towards the edge of the eyepiece field should be discounted, since they're more likely to be eyepiece aberrations (lateral spherical aberration) than objective aberrations.

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	Hitec RCD Hitec 159240 Optic 6 Sport 2.4Ghz Tx/Rx from $ 164.93     Stock Status : In 4 Stores
	Barska Optics Barska Digital 10x-300x Microscope from $ 66.35   This 10x - 300x digital microscope is state-of-the-art integration of high quality optics and digital camera. This type of microscope is used for closer viewing of the non-microscopic world through your computer screen. Plug and Play technology. No other software needed. Compatible with Windows XP/ Vista Computers.   Stock Status : In 6 Stores
	Flashing Fiber Optic Black Baseball with Player L.E.D. Blinking Logo from $ 13.65   FLASHING FIBER OPTIC HAT w/ " PLAYER " LOGO. High Powered L.E.D.'s Light Up State of the Art Fiber Optic technology built into these Custom Embroidered Caps. High quality 6 panel Baseball caps complete with a self adjustable strap will fit most any head. GREAT LOOKING IN EITHER DAYTIME OR NIGHT. Batteries are included and installed. Price shown is for each cap. Please order in increments of 1 cap per style. Replacement batteries for this item: 2 pcs, type CR2032.   Stock Status : In 1 Stores
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	Flashing Fiber Optic Black Baseball with Smart Ass L.E.D. Blinking Logo from $ 13.65   FLASHING FIBER OPTIC HAT w/ " SMART ASS " LOGO. High Powered L.E.D.'s Light Up State of the Art Fiber Optic technology built into these Custom Embroidered Caps. High quality 6 panel Baseball caps complete with a self adjustable strap will fit most any head. GREAT LOOKING IN EITHER DAYTIME OR NIGHT . Batteries are included and installed. Price shown is for each cap. Please order in increments of 1 cap per style. Replacement batteries for this item: 2 pcs, type CR2032.   Stock Status : In 1 Stores
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	Flashing Fiber Optic White Baseball with Las Vegas Dice Blinking Logo from $ 13.65   FLASHING FIBER OPTIC HAT w/ LAS VEGAS DICE LOGO. High Powered L.E.D.'s Light Up State of the Art Fiber Optic technology built into these Custom Embroidered Caps. High quality 6 panel Baseball caps complete with a self adjustable strap will fit most any head. GREAT LOOKING IN EITHER DAYTIME OR NIGHT . Batteries are included and installed. Price shown is for each cap. Please order in increments of 1 cap per style. Replacement batteries for this item: 2 pcs, type CR2032.   Stock Status : In 1 Stores
	Hitec Optic6 Sport2.4ghz Tx Std/optima6 Rx/4 Hs-325bb Sx Hrc159242 USD 209.99   WE SHIP 3-4 BUSINESS DAYS AFTER PAYMENT NOT INCLUDING WEEKENDS AND HOLIDAYS INVENTORY LEVELS ARE SUBJECT TO CHANGE PLEASE USE EBAY EMAIL ONLY If you need a higher quantity than listed please email for availability Hitec Part Number HRC159242 Hitec New Optic6 Sport2.4GHz Tx Std/Optima6 Rx/4 HS-325BB Sx HRC159242 This quality Hitec New Optic6 Sport2.4GHz Tx Std/Optima6 Rx/4 HS-325BB Sx HRC159242 is brought to you by T and T Hobby Shop .It is brand new in the box. The part number is HRC159242 Pict   Notes : Earn 2% eBay Bucks on qualifying purchases! Backed by eBay Buyer Protection Program. Terms and Conditions apply. Stock Status : in-stock
	NEW MICROSCOPE STARTER KIT - 600x - Top Quality Optics USD 16.99   Brand New -  600 X Microscope Kit! This is a starter microscope kit. Kids Love them! Makes a great gift for your young scientist. This is a full KIT that includes: * Microscope - 100/300/600 x times zoom ability! * 5 - Glass Slides * 5 - Cover Slips * 5 - Blank Labels * Tweezers * syringe / baster * blue methylene stain/dye * specimen container * Instructions for use The microscope is fully adjustable, it tilts, turns, focuses, zooms and more. It has two light sources, one being a mirror that simply reflects light into the optics, the other is a true bulb lamp that adds even more light to the focal point and slides. 600 time zoom ! lamp bulb requires 2 - AA batteries not included Bring the joys of science into your home!Brand New   Notes : Fantastic prices with ease & comfort of Amazon.com! Stock Status : in-stock
	110' 1.0mm Fiber Optic Model Rr Lighting, Models, Buildings, Etc. + Free Bonus USD 21.99   "HUGE FIBER OPTIC MODEL LIGHTING SALE"!! . . . Add lights to all your projects the EZ way with fiber optic lighting. . You are bidding on the item in the auction title. "OR" you can choose any "1" of the other items listed below if you let me know when you pay. If you want more than one item please let me know. . All my fiber is state of the art high quality optical plastic, end glow, fiber optic fiber. Not the older glass type fiber which requires polishing and is very hard to work with! . You   Notes : Earn 2% eBay Bucks on qualifying purchases! Backed by eBay Buyer Protection Program. Terms and Conditions apply. Stock Status : in-stock
	500 Ft .50mm Fiber Optic Model Rr Lighting, Models, Buildings, Etc. + Free Bonus USD 21.99   "HUGE FIBER OPTIC MODEL LIGHTING SALE"!! . . . Add lights to all your projects the EZ way with fiber optic lighting. . You are bidding on the item in the auction title. "OR" you can choose any "1" of the other items listed below if you let me know when you pay. If you want more than one item please let me know. . All my fiber is state of the art high quality optical plastic, end glow, fiber optic fiber. Not the older glass type fiber which requires polishing and is very hard to work with! . You   Notes : Earn 2% eBay Bucks on qualifying purchases! Backed by eBay Buyer Protection Program. Terms and Conditions apply. Stock Status : in-stock
	Dragon Resting On Top Of Treasure With Fiber Optic Lights Figurine USD 36.96   This gorgeous Dragon Resting On Top Of Treasure With Fiber Optic Lights Figurine has the finest details and highest quality you will find anywhere! Dragon Resting On Top Of Treasure With Fiber Optic Lights Figurine is truly remarkable.Dragon Resting On Top Of Treasure With Fiber Optic Lights Figurine Details:Condition: Brand NewItem SKU: SS-G-44032Dimensions: H: 8.5 (Inches)Crafted with: PolyresinMore Information: Powered by AC adapter.   Notes : Fantastic prices with ease & comfort of Amazon.com! Stock Status : in-stock
	Geo Vision Precision Optics; Lab Microscope USD 129.99   Geo Vision Precision Optics Lab Microscope Grades 3 and up. From bugs to bacteria, the Lab Microscope provides students with a lab-quality classroom science experience. With its durable, die-cast all-metal body and precision ground optical glass lenses, this microscope features superior-quality components for years of very high quality viewing.   Notes : Earn 2% eBay Bucks on qualifying purchases! Backed by eBay Buyer Protection Program. Terms and Conditions apply. Stock Status : in-stock
	Dragon Resting On Top Of Castle With Fiber Optic Lights Figure Statue USD 84.93   This gorgeous Dragon Resting On Top Of Castle With Fiber Optic Lights Figure Statue has the finest details and highest quality you will find anywhere! Dragon Resting On Top Of Castle With Fiber Optic Lights Figure Statue is truly remarkable.Dragon Resting On Top Of Castle With Fiber Optic Lights Figure Statue Details:Condition: Brand NewItem SKU: SS-G-44033Dimensions: H: 14 x W: 8.25 x D: 6.25 (Inches)Crafted with: PolyresinMore Information: Powered by AC adapter.   Notes : Fantastic prices with ease & comfort of Amazon.com! Stock Status : in-stock
	British Music Publishers - Printers And Engravers USD 16.58   Preface. As a pioneer work, the present volume must claim a little indulgence. Excepting a few scattered notices here and there, nothing dealing with the subject of the following pages has yet appeared, and facts bearing on it are scanty and scattered in many places. The lists of publications are not put forth as containing all that my material would furnish, but are merely selections culled to show types of a publishers issue to fix a date, or give a variation of imprint. The names attached here and there are those of the owners of the particular copies I have consulted and do not imply that such works may not be in the British Museum or else- where. Much of the bibliographical matter comes from my own library, while my friend, Mr. T. W. Taphouse, of Oxford, has freely as he has ever done thrown open to me his large and valuable store of rare and unique volumes. The British Museum has, of course, also furnished much, and I have to thank Mr. W. Barclay Squire there, for much helpful courtesy and for the trouble he has taken in many ways. I must also thank Mr. Arthur F. Hill, Mr. Alfred Moffat, and Mr. J. E. Matthew, of London, Mr. John Glen, of Edin- burgh, Dr. Culwick, and Mr. E. R. MC Dix, of Dublin, and others who have furnished titles and imprints from their collectiols. Their contributions are all indicated in the text where they occur, and it but remains to thank all heartily for their aid. The references from the Edinburgh directories for 1804, 1806, and 1807 are from copies in Mr. Glens possession. I am also indebted to Mr. Hardie Brown, bookseller, Edinburgh, for kindness in allowing me the use of a file of early Edinburgh newspapers. I have to thank Mr. McLauchlan and his assistant at the Dundee public library for facilities granted in connection with the Wighton Collection, and a great number of practical sympathisers with the work. 128, BURLEY ROAD, LEEDS. Jrrtllrnry, 1900. FRANK KIDSON. The present volume is an endeavour to place in a form, convenient for reference, a list of men a number of whom were themselves musicians who have played important part in the building up of British Music. By its aid it is hoped that much fresh light will be thrown on the musical history of the period it covers, and in some degree remove that uncertainty as to date, with which the average musican, librarian, or bookseller regards a piece of old music. The unfortunate habit, in force even to-day, of omitting the year of publication on musical works has caused more anxiety, trouble, and vexation of spirit to the antiquary in such matters than the outsider, unacquainted with the toil of tracking a melody to its source or of following the career of a rnusican, can conceive. Prior to the 18th century Playford and the earlier printers honestly placed the year of issue before the reader, but the wily John IValsh soon discovered that L women and music should never be dated, and up to the present the maxim has been religiously observed. To get at the date of such undated work it is necessary to find out the business movements of the publisher his partnerships, his changes of address, and the year for such events. In the absence of publishers name or initals, the quality of the paper, or engraving, or if it chance, a dated signature of a former owner all have to be taken into account before a satisfactory estimate of a year of publication can be arrived at...   Notes : Fantastic prices with ease & comfort of Amazon.com! Stock Status : in-stock

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