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diy grinding high quality telescope lens

  • NASA NuSTAR Telescope LensHow to Make Telescope

    Telescopes are expensive especially giant space telescopes but a new process aims to significantly reduce the cost of the lens Here is how the new technique will be used on NASA s latest

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  • Homemade 12.5 Inch Dobsonian Telescope 5 Steps with

    Homemade 12.5 Inch Dobsonian Telescope How to build a 12.5 inch closed tube Dobsonian telescope I began building it in the spring of 2008 but the bulk of the work was done in July of 2008 with first light occurring on July 25 This Instructable describe the planning design and par

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  • SCIENCE HOBBYIST make a simple telescope

    MAKE A TELESCOPE WITH A LENS AND SOME FOIL It is also possible to make a telescope using aluminum foil and one lens The lens will act as the telescope s objective lens To make an eyepiece we just poke a tiny hole in the foil and use this pinhole as the telescope eyepiece lens The tiny hole in the foil removes the blur.

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  • Homemade eyepieces and finderscopesTelescope making

    Cost 5 The lens body has an outer diameter of 25 mm To convert it to a standard 1.1/4 eyepiece size cut a cardboard strip and glue it around the bottom widest part of the lens Take a Kodak film canister and cut of the bottom Now put the lens inside the film canister This lens is also good as a telescope eyepiece.

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  • Build a Super Telephoto Lenses w/o Using a Camera Lens

    Although not every lens maker tells the power of a close up lens most makers show this information using diopter The diopter of a close up lens is defined as follows diopter D = 1000/focal length Thus if you have a 2 diopter close up lens it has a focal length of 1000/2 = 500mm.

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  • How to build a DIY replica of Galileo s telescope

    Calculate the distance between lenses Subtract the focal length of the concave lens curves inward from that of the convex lens curves outward We got

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  • Lens Making 5 Steps with Pictures Instructables

    Clothing Wear a mask apron and plastic boots because the silica water will get all over as your grinding the glass Place the water in order for it to drip on the glass to avoid thermal shock Since the grinding wheel has a rounded profile it will carve the glass with a round outer shape.

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  • Amateur Telescope Making Main PageStellafane

    Amateur Telescope Making Main Page For it is true that astronomy from a popular standpoint is handicapped by the inability of the average workman to own an expensive astronomical telescope It is also true that if an amateur starts out to build a telescope just for fun he will find before his labors are over that he has become seriously

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  • Mirror grindingTelescope making

    In some countries telescope mirrors are unavailable so they need to be imported at high shipping customs and tax cost A 6 150 mm or 8 200 mm standard quality mirror will be cheaper if bought ready made 250 mm 10 probably too.

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  • How to Fix Scratches on Your Glasses Lenses SelectSpecs

    Fixing Scratched Lenses on your Glasses Tips worth knowing to help removing scratches from your glasses lenses There are fewer things in life more annoying than the pesky distraction of a scratched lens on your glasses especially when it s right in your eye line and distracts you from concentrating on your current task

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  • MAKE YOUR OWN TELESCOPE KITSSharp Vision

    A 25mm diameter objective lens for finder telescope An eyepiece to make a 6x power finder telescope Complete easy to follow instructions on how to build the entire body of the telescope You will have to build the following parts of the telescope yourself Main tube of the telescope Mount for the main mirror .

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  • Build your own telescope part 1 The mirrorThomas

    If you were shooting for a high focal ratio telescope you won t have to grind for too long On the other hand for a fast scope it can take you a lot more time Once the desired sagitta has been reached it is time to make the surface more spherical rough grinding usually creates a slightly conical surface .

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  • DIY Telescope Courtesy Of IKEA Hackaday

    DIY Telescope Courtesy Of IKEA Do they still call grinding your own lens/mirror walking around a barrel Some high quality mirrors produced by skilled professionals or advanced

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  • Roger s Refractor Building PageAstronomy

    What Focal Length and type lens do you want to build Grinding start Initial hogging of the glass and making grinding tools Correcting for center and wedge What Focal Length and type lens do you want to build Polishing the Lens Polishing out the lenses and notes on milling rouge Figuring the Lens Figuring and initial testing of the lens.

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  • Dick Parker s Telescope Mirror Workshop Refractor

    The lens assembly is put on the test stand for autocollimation testing The light source is beyond the picture to the left Shown is the lens cell with the lens elements in it mounted on a board left Behind the lens is the autocollimation flat.

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  • diy grinding high quality telescope lens

    diy grinding high quality telescope lens return home Shop at OPTRefractorsTelescopesOPT The word refractor means a telescope whose principal focusing element is a lens A refractor telescope is a

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  • Find a Telescope Workshop to Watch the Skies DIY Style

    Held every Friday night at Oakland California s Chabot Space and Science Center the Telescope Makers Workshop is an informal gathering where you can learn how to grind and polish a high quality Newtonian telescope mirror and hopefully turn it into your own masterpiece of optics woodcraft and design.

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  • NASABuild a Telescope

    The lens at the other end of the telescope is called the objective lens Light from a distant object is focused by the objective lens to form an image in front of the eyepiece The eyepiece acts as a magnifier and enlarges that image The magnification of the telescope can be found by dividing the focal length of the objective by the focal

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  • Manually grinding a lensATM Optics and DIY Forum

    Page 1 of 2Manually grinding a lensposted in ATM Optics and DIY Forum Hello I ll start to grind a lens with a photographer friend who wanted after years of photography to make one himself to get a feel of the process The first one will be made in a schott mirror blank 102mm/15mm thick and will be plano convex We don t expect it to give diffraction limited pictures since the

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  • A Photovisual Maksutov Cassegrain Telescope

    9 Sigler Robert D A High Performance Maksutov Telescope Sky and Telescope September 1975 A design that uses a separate optical element for the secondary mirror to achieve a faster yet well corrected telescope 10 Tuthill Roger W A Maksutov 11 Inch of Newtonian Form Sky and Telescope March 1964 Some of

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  • Don t fall for the StarScope Monocular telescope

    The StarScope Monocular is a telescope lens for your smartphone which makes a lot of bold claims about its abilities It can zoom into subjects miles away for real hundreds of millions of miles so they claim and lets you beat out the image quality of a DLSR yup I know it s DSLR that s a quote from their ad at a

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  • 10 DIY Telescope You Can Build On The CheapThe Self

    3 Galilean DIY Telescope This is an ideal homemade telescope to create with your children for a beginner s telescope or one for a school science project Easy and cheap to build most of the components can be purchased at your local office supply store The range of view is limited with this model but it can inspire a young astronomer to build a telescope in the future that has a far

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  • Amateur Astronomy and DIY TelescopesStellafane DIY

    To become a full member of the club you must grind a telescope mirror or lens with your own hands Many telescope makers start because making is cheaper than buying Here are the coolest DIY

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  • Telescope Mirror Blanks TelescopeMirrorBlanks

    Telescope Mirror Blanks Providing telescope mirror blanks and kits to telescope makers Mirror blanks are individually tested for internal strain Plastic protractor inserted under a 6 inch mirror blank during a stress test to illustrate what stress would look likeif there were any present.

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  • Making a telescope mirror with resinATM Optics and

    Page 1 of 4Making a telescope mirror with resinposted in ATM Optics and DIY Forum Hi there I am new and i want make a new 12 primary mirror for a dob i was wondering if it can be made from resin instead of glass Heres what came to my mind We can take some kind of resin epoxy or other and pour it into a tub or something and spin it at a constant rate with servos and creating parabolic

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  • How to Make a Telescope with Pictures wikiHow

    None as adding lenses between them changes the behavior of the light passing through You could however make a telescope with theoretically infinite lenses if they re spaced out properly However bear in mind that every lens you add reduces image quality brightness contrast etc.

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  • The Best Telescope Options for Stargazing at HomeBob

    The Celestron AstroMaster 114EQ is an excellent option that comes with several premium features including a wide 114 mm aperture and 1000 mm focal length This reflector telescope

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  • Build a guidescope using an old camera lensBBC Sky at

    The DIY bracket could also be used in other areas of astronomy maybe with a lens as a telescope or as a finderscope by inserting an eyepiece instead of a guide camera Another bonus about our project is that it uses nearly all plastic parts such as rear lens caps and PVC pipe connectors.

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  • Lens Making 5 Steps with Pictures Instructables

    Lens Making Learn how to make fun optics Lenses are fascinating both the process of making and the wild distorsions they create are a great skill to learn.Glasses telescopes microscopes kaleidoscopes are all lenses With these steps you will learn tricks

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  • An Introduction to the Optics Manufacturing Process

    Molded optics are a common way to produce small lenses in high volume A molded optic starts as a preform which is a ball or disc that has already been polished to very high quality It is then shaped in a mold at high temperatures The overview of this process can be seen in Figure 9 Figure 9 Overview of the Molding Process Schott

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  • Hand Grinding a Telescope MirrorMake DIY Projects

    This is how you make a telescope mirror out of a hunk of glass Use a sand mixture and another piece of glass to grind away the middle of a concave shape Repeat with finer and finer grit sand Dave Barosso demonstrates the technique but to do it yourself try to visit one of the Telescope Makers Workshop s classes on Friday nights in

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  • How to make a small refractor telescopeBBC Sky at

    Unlike mirror making grinding and polishing an achromatic doublet lens is not something most amateurs would consider Thankfully lenses are relatively easy to come by and can be surprisingly cheap at around £20 for a 60mm lens There are a number of surplus companies offering mounted telescope objectivessee Surplus Shed for example.

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  • The Best Astrophotography Telescope for a Beginner My

    2 days ago The benefits of this quadruplet lens telescope are the lack of need for a field flattener and the high quality astrograph level focuser Without being able to use each and every telescope on this list first hand it is impossible for me to provide a complete review of each model.

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  • Make a telescopeNational Geographic Kids

    Your telescope is a refracting telescope because it uses lenses to help gather more light than your eye could possibly do on its own The scope uses two lenses to bend light which makes an object appear closer than it really is The size of the image produced by the telescope depends on the curvature of the lenses.

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  • Telescope Mirrors Blanks Secondaries Grinding Materials

    Advanced Telescope Making Techniques Volume 1 Volume 2 60AUD Amateur Telescope Making Volume 1 2 3 70AUD Build Your Own Telescope Complete plans for 5 high quality telescopes 70AUD The Dobsonian Telescope A practical manual for building large aperture telecopes 82AUD How To Make a Telescope 2nd Edition 70AUD ALL ABOUT TELESCOPES

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  • How To Make a Telescope With Two Convex Lenses

    Telescope Lenses Lenses are made up of transparent object such as glass or plastic with an index of refraction greater than that of air At least one of the faces is a part of a sphere a convex lens is thicker at the center than the edges and a concave lens is thicker at the edges than the center.

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  • How To Build a Dobsonian Telescope DIY Astronomy Project

    You too can avoid astronomical costs by watching stars through a tricked out cardboard tube PM builds one and speaks to John Dobson the man behind the plans about the joys of DIY

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  • Grinding own mirror gives you a spherical or a parabolic

    The natural mirror grinding process will create a sphere The first part of making a mirror is to grind and polish to a sphere of the required focal length Then the mirror is parabolised by using special polishing strokes that changes the figure from sphere to paraboloid.

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  • How to Build a Telescope Science Fair Projects Space

    A Galilean telescope is in essence a tube with two lenses placed at either end The eyepiece is a plano concave lens which is flat on one side

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  • Mirror Grinding Machine

    telescope mirror grinding machine based on Dennis Rech s M o M 20 My Mirror Grinding Machine For a long time I ve wanted to build a machine for grinding telescope mirrors Dennis Rech s M o M designs finally inspired me to just get up and do it Over the years I d been collecting motors gear boxes pulleys etc.

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  • Making a telescope mirror with resinATM Optics and

    Page 1 of 4Making a telescope mirror with resinposted in ATM Optics and DIY Forum Hi there I am new and i want make a new 12 primary mirror for a dob i was wondering if it can be made from resin instead of glass Heres what came to my mind We can take some kind of resin epoxy or other and pour it into a tub or something and spin it at a constant rate with servos and creating parabolic

    Get Price