How to make a small easy telescope

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14 жыл бұрын

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This is a tutorial on how to make a small refractor telescope using lenses. I show the basics of making the telescope and I also explain how to select the lenses and what types of lenses to use. I show you how to find the focal length of a lens. Lots more projects on my website: www.stormthecastle.com
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You can see the tutorial with the lenses here:
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Пікірлер: 294

@epicfantasy 4 жыл бұрын

Like this video? Be sure to hit the subscribe button! And hit the little bell icon so you are notified when I post a new video!! Thanks!

@Sirenheade456 Жыл бұрын

can you see planets with this?

@epicfantasy 13 жыл бұрын

@lavonminor Grats on making the telescope! Yes, it is an inverted image. Used for astronomy! You can correct this by changing one of the lenses to a double concave.

@a.m.arteaga8369 12 жыл бұрын

You are amazing, it's people like you that are blessings. I admire you so much, thank you for taking your time and making these wonderful as well as fantastic videos! God bless you!

@epicfantasy 12 жыл бұрын

@withoutthefire Yes, I believe so. That sounds like the combination that Galileo used.

@msgossipway2much 10 жыл бұрын

This is a great video! Easy to understand and it kept me interested til the end! Thanks so much I will try it! EXCITED!

@cyer5 14 жыл бұрын

I appreciate your effort in bringing this presentation.Nicely done.

@epicfantasy 12 жыл бұрын

@00lightbulb yes, I have the mirrors to make bigger telescopes. One mirror is 8 inches in diameter. Those will be fun projects. Going to do vids.

@SemiDigitalTV 10 жыл бұрын

Than you this help so much. Thanks for also making a clear to the point video! thumbs up

@epicfantasy 12 жыл бұрын

@madebo1294 YEs, the sliding allows you to find the focus. Only way to see clearly.

@giovannap4926 9 жыл бұрын

Thanks for this tutorial!

@geoffreytyson3730 8 жыл бұрын

thanks for this! where would you suggest purchasing the lens online? It'd be so cool to try it with the plano concave and convex concave lenses.

@epicfantasy 12 жыл бұрын

@Icklumpus great comment. But, isn't that the focal length? and to use the thin lens formula to get the magnification and focal length you need both radii of the lenses. difficult to figure unless given to you. Great comment though.

@epicfantasy 13 жыл бұрын

@nayyark23 NIce work and good improvising! The upside down is normal. doesnt matter when you are looking at the stars and moon. But some good improvising on your part!

@miguelpastor3257 6 жыл бұрын

Thanks for the tutorial!

@alexchooo123 14 жыл бұрын

this goes write in my favourites :-) i have a question at the end i didnt get it when you focus the light when its clear what you do next ?

@epicfantasy 12 жыл бұрын

@415p2 I haven't tried it but the 30 cm fl lens should be good too. The 30 is the focal length.

@da1681 4 жыл бұрын

Very well explained. Thanks. Want to try it myself.

@epicfantasy 14 жыл бұрын

Yes, this telescope inverts the image, comes upside down. if you want a right side up image you have to use a double convex lens and a plano concave lens. Or a double concave lens. Hope that helps!

@angryadrien 6 жыл бұрын

Great information. Thank you

@epicfantasy 12 жыл бұрын

@Dragon1813 the upside down is normal

@tchibisarmelia8117 8 жыл бұрын

je vous remercie pour les cours sur l'electronique, car cela m'a permis de connaitre les specifités et le role de chaque composant' je vous encourage parceque dans le monde actuel on se doit de s'entraider, merci encore!

@epicfantasy 12 жыл бұрын

@Dragon1813 yes, thats right.

@epicfantasy 14 жыл бұрын

Thanks, fun little project! I bought a telescope mirror with an eight inch diameter. Going to make a very big telescope. Will be a fun series of videos.

@epicfantasy 12 жыл бұрын

possibly, but you can get bigger rolls. magnifyiing glasses come in different sizes too.

@epicfantasy 13 жыл бұрын

@Maize52 no, you wouldn't be able to get any details. Just some of the colors.

@stephaniepaderes3430 10 жыл бұрын

thanks for the vid. it helps me to make my project telescope easy.. :)

@captainhamdy 11 жыл бұрын

thanks for your video but I want you to describe how can i measure the position of the focal point from the lens to determine the position of the pinhole or the reticle inside the rifle scope (I know that you mentioned it in the video but I didn't understand and how does the thickness of the lens affect on the magnification ? thanks

@epicfantasy 13 жыл бұрын

@xXUndeadViperXx On a dark night you can see the Orion nebula without a telescope! So, any power is good, binoculars are alos good!

@scasey1960 13 жыл бұрын

Nicely done!

@KASHTutorials 13 жыл бұрын

Great video! Quick question though, Are you able to make this if you have two of the exact same convex lenses? Or do they NEED to have different focal lengths?

@megha7564 11 жыл бұрын

hi i have a school project on ths i want to know what focal lengths should be used ? i have one convex lens of f=32 cm (i checked like u taught in yr vid):) i e to buy the other what focal length lens should i buy???

@epicfantasy 13 жыл бұрын

@anilareya amazon has them. I have links on my website.

@oel97 12 жыл бұрын

hi i have a tasco 7x35mm zip focus binocular and a regular lens from glasses...is there anyway i can build a telescope??please respond...thank you

@sania1027 14 жыл бұрын

would it work if i have a convex and a concave? both exactly the same size?

@DexterColdplay1fan 12 жыл бұрын

O M F G THANK YOU SO MUCH! This is everything I need for my school project!

@epicfantasy 13 жыл бұрын

@ignilc This is an excellent question and difficult to answer. You probably mean Saturn's Rings? Part of it depends on how clear your night sky is and how dark. But I am not really sure. Maybe, 25ish?

@floyd8262 4 жыл бұрын

Where can I get the primary and secondary mirrors for building a 8" reflector telescope?

@JoylynAvaso-uu3rr 4 ай бұрын

😮I really appreciate your video 👊🏾

@415p2 12 жыл бұрын

@epicfantasy o sorry i meant to say they dont have the 30 focal length. do you know any place to buy 30fl?

@epicfantasy 14 жыл бұрын

@sania1027 Yes, I believe it would.

@ayushjha5796 9 жыл бұрын

it helped me a lot thanks to you

@epicfantasy 13 жыл бұрын

@MySerenity11 Nice work! Great way to stick with it! Enjoy your telescope.

@averageidiot442 7 жыл бұрын

will a plano conves eyepiece work with a double convex lens?

@ralphallada 8 жыл бұрын

Thank you

@horizonpathak 10 жыл бұрын

thanks !

@southernexposure123 2 жыл бұрын

That's a gooooood explanation.

@zozo71zozo71 14 жыл бұрын

very very simple and coll staff !!

@Dragon1813 12 жыл бұрын

@epicfantasy Would that change if the eye piece lens was a Concave and the other was a double Convex?

@epicfantasy 13 жыл бұрын

@rajneeshru inverted

@michaeljonathan9431 8 жыл бұрын

How did you managed to get the lens out of the magnifying glass holder? Pls answer me mann

@jdiplaris 14 жыл бұрын

can you make the telescope the right side up with double convex lenses?

@stevendavis3991 5 жыл бұрын

Thanks for showing how to find the distances of the lens.

@nikis11nikis 11 жыл бұрын

Hello Mr epicfantasy, u have use the convex lens so it will make a inverted image, so hw 2 solve the problem of inverted image through the telescope... plzzzz tel me :-)

@minhajmujimuji7485 7 жыл бұрын

exectely wonderfull

@anilareya 13 жыл бұрын

Can you tell me were exactly I can find the lenses. I tried looking everywhere like Walmart, Osh, Lowes, Target, Office Depot, & Micheals

@wayangede2007 11 жыл бұрын

Hello Mr Epic Fantasy,one more my question,How to increase the power magnifier?My telescope magnifier now is about 5x,how to increase become 10 x? is the eyepiece lens have be made smaller? Thank you.

@EclipseBlaze 11 жыл бұрын

anways good going man...:] im damn sure that u took a lot of energy on explaining this

@ElizabethGama31 14 жыл бұрын

Do you know if i can use something else other than glass lenses??

@shyansuperville6952 9 жыл бұрын

this helped a lot in my project

@epicfantasy 13 жыл бұрын

@MySerenity11 wow! Thanks for this.

@aztonmartine 10 жыл бұрын

tHANKS MAN... IN FACT I WANT TO SEE THE MOON ,SO I WANTED TO PREPARE A TELESCOPE , I THINK U R VIDEO HELPS ME...

@michaelmafwenga1129 7 жыл бұрын

I like it 😊

@wayangede2007 11 жыл бұрын

Hello Mr epicfantasy,I use two lens double convex with 9 cm diameter,and the telescope made by PVC pipe about 90 cm length,is it right?

@dillonbrixius9916 10 жыл бұрын

Is their any research before i try this project?

@chintan1500 13 жыл бұрын

Can you tell me exactly where did you get the telescope lenses? Website or a store where you found it

@shwopnotori1317 10 жыл бұрын

Thanks :)

@sanan22 12 жыл бұрын

where did you find the lenses? I've been looking for lenses and all I can find are very small pocket lens or large hand lenses.

@jetsfan333 10 жыл бұрын

can u do this with 2 of the same lens?? im trying to do this for a school project and im wondering if that would work

@viktorgustavsson8164 10 жыл бұрын

The angular magnification can be calculated by dividing the focal length of the first lens with the focal length of the second lens, thus if you have two lenses of the same kind the magnification will be x1 (no magnification). So, nope.

@neoanimalia884 6 жыл бұрын

Yes, you can but the focal length of objective lens should be greater than of eye piece.

@bugslightyear6017 10 жыл бұрын

Hello sir, Your video is most helpful then any other video on you tube when it comes to home made telescopes.But i am a bit confused in choosing lenses. My questions are: 1- I have a Magnify lens size of a human palm, can i use it for my telescope? 2- Can we use both lenses of same focal length & diameter ? 3- Is Plano concave & Convex concave setup is more effective in magnification? 4- Can we use a very big magnify lens like one used by detectives in movies ? The best part of your video is when you teach us about lenses at least now i know about concave,convex,double convex & Plano convex. Thanx :)

@rickyrebelo587 6 жыл бұрын

Can I use camera lens for dis

@anderskihlelb3bj835 11 жыл бұрын

Do you have any pages that i can buy the materials?

@Phantom77_ 14 жыл бұрын

hi where did you buy your lenses ??

@ignilc 13 жыл бұрын

@epicfantasy Jupiter also has rings, and is much closer than saturn, and much larger. And I thought it'd be awesome to see its rings, especially with a homemade toy. Anyway I watched your tutorial, and today I bought some lenses, one +1.5 dioptres, and one -5.5. will these do for a galilean telescope? very nice vid by the way!

@FintaruS 14 жыл бұрын

thx :)

@epicfantasy 14 жыл бұрын

@ElizabethGama31 amazon has them. Links are on my website too. You can also buy kits that have the tubes and lenses.

@darkceratops-roblox6258 6 жыл бұрын

Where would you get the glass that makes it zoom in.

@dakshgehlot 7 жыл бұрын

Hello all Sir I really liked your video. I am making a telescope for my school project. I am using a concave convex lens of diameter 49 mm and focal length of 1350mm and a Plano concave lens of 49mm and focal length of 152mm. Will be able to get 9x image? please reply and also tell me the requirements for 10x or 20x

@Sharpless2 7 жыл бұрын

with that length and a 25MM Eyepiece you get 54x Magnification, if your eyepiece is 49MM you get 27x Magnification( with 1350mm focal lenght)

@anukritsharma1798 8 жыл бұрын

can i use plano convex lens with+12 d on objective?

@anukritsharma1798 8 жыл бұрын

pl answer........................................

@epicfantasy 11 жыл бұрын

The length of the tube depends on the focal length of the lenses. The telescope has to be able to slide, so you can focus it

@eminence18 13 жыл бұрын

that was awsome

@acniloj 13 жыл бұрын

what's the name of the knife again?

@dollydongphuong 12 жыл бұрын

Where do you go to buy these magnifying lenses without the handle?

@Phantom77_ 14 жыл бұрын

where did you get lenses from ??

@ParaglidingManiac 12 жыл бұрын

How about a video or some pictures of how this little homebuilt telescope operates?

@epicfantasy 12 жыл бұрын

@lolzpwnz wow! have fun.

@epicfantasy 12 жыл бұрын

@snowcrystal2510 Good job on the telescope. The eyepiece lens shoudl be about 50 cm away from the objective. We make a sliding tube telescope so you can just adjust that as you need it. With a 10x telescope you should see some fun stuff like craters on the moon and a coouple of plantets like jupiter and saturn.

@khuramshahzad3790 7 жыл бұрын

very nice

@s.sradon9782 7 жыл бұрын

I suggest putting a long slot in the side of the inner tube and fitting a bolt into it through the outer tube so that it won't fall out the other side

@antolus22 13 жыл бұрын

I have exactly the same scissors like yours:D BTW good tutorial

@thorntonchavez1627 8 жыл бұрын

that was so easy thanks for making this video

@thorntonchavez1627 8 жыл бұрын

+Thornton Chavez n

@rajneeshru 14 жыл бұрын

Will the image be inverted or straight????

@jairyjojo3033 12 жыл бұрын

can the eyepiece lens have 0.5 focus length, if so what all can you see with a telescope with 40x magnification?can you see stars, planets, etc?

@wayangede2007 11 жыл бұрын

i have made one,i use one big lense on objective and one small one on eyepiece lens,why the pictures is reverse?Thank you.

@GeorgeChar95 12 жыл бұрын

nice video! of course i don't need to make one cause i have the Skyliner 8 inch by skywatcher. But watching this video is very educational!

@koraymelihyatagan8111 10 жыл бұрын

You can use a little gap that youcan create with your hand as a lense. Just tried it and it worked.

@epicfantasy 12 жыл бұрын

probably, hold them up and see!

@epicfantasy 12 жыл бұрын

@oel97 probably not.

@JavedZBH 12 жыл бұрын

I have 2 double convex lenses and im getting an image but it always seems to be upside down. How do I fix that?

@epicfantasy 12 жыл бұрын

on amazon. Might want to try american science and surplus too.

@UFT1 11 жыл бұрын

Is a magnifying glass a double convex ??