The Basics of Telescope Eyepieces

A basic overview of eyepieces for beginner telescopes. I cover the eyepieces that come with many beginner telescopes, details on the different types of eyepieces, and general ideas about upgrading and buying new eyepieces.
Some of the eyepieces I discuss in this video:
Orion Sirius Plossls amzn.to/2LgZzhM
Celestron XCEL LX amzn.to/2L9tYOZ
Orion Stratus amzn.to/2rZTNZZ
Badder Hyperion amzn.to/2Lc3CvA
Televue Naglers amzn.to/2GxZhPO

[@Mike-lh4wn]

Thanks for the practical down-to-earth explanation for us new guys.

[@catalinmacovei1037]

I couldnt hear shiet f4 hear bc of my peanut ass primitive bad ears

[@marckanaan3501]

@@catalinmacovei1037 ok?

[@johnnywalker4401]

Young man that information was absolutely fantastic. I've looked everywhere on here to try to find someone simple but yet precise and you are it. I am a new denture with a very inexpensive telescope it is a 700 mm by 40 mm and it came with a 25 mm IPS as well as a 10 mm IPS the same exact ones youwhen I remove my diagonal reflector I can't

[@jami6600]

@@johnnywalker4401 I have 700mm Newtonian telescope but it’s a crap( very hard to focus). Will buy at least 1500mm telescope

[@johnnywalker4401]

@@jami6600 Young Man you don't need to Waste Your Hard Earned Money for a Nother Telescope. ALL You Need is a Descent Angle lense. Also you should get a 2x Barrel for around 20 and get 3 eyepieces a 15mm a 25mm and a 40 mm you can find them Almost New on OfferUp and Craiglist Total cost is around 30 to 50 no more than that. you should make sure you have the angel piece In the right direction

[@williamthompson3294]

Almost the Bob Ross of telescopes. Very informative and calm. The right amount of information at the right pace.

[@MLarios97]

Slow pace for slow minds

[@KeyhaneBishomar]

I had a 28mm eyepiece and i really recommend it since you can get a big image and decent magnification of moon and jupiter (it's still very small but you can see it as a whole system)

[@davemmar]

Very well done. Just as a side note, I use a 55mm-2” eyepiece for a very wide field of view. A similar wide field can be obtained from a 40mm-1 1/4” eyepiece. Wide fields mean any planets will look small with very little detail, but extended objects like galaxies and wide nebulae will fill your field of view in dark skies. My choices for focal length are 55mm, 40mm, 24mm, and 16mm.

[@freddie2.095]

Thx for the explanation, finally a vid where I gain some understanding about my bresser reflection telescopes eyepieces :)

[@jamescrfc1]

Great video, helped me with exactly what I was looking for. Thank you.

[@dennisl5994]

This is probably the most informative and complete video on KZbin that I have ever seen. Kudos to you!

[@josephhoffman7630]

Thanks for the great video. This information is exactly what I have been searching for!

[@Night_Tim]

This video was really straightforward and helpful. Just picked up my first real telescope today and got good info here. Thanks!

[@u220327]

Amazing explanation Allan. I've just got my first telescope and had no idea what a barlow/eyepiece was. Thanks man!

[@lavishmongoose8410]

Found this super helpful, i didnt know anything about the sizes. Thankyou :)

[@Bigalinjapan]

Thanks a lot. It rarely happen people get to the point in an easy to understand way. This is the quality we are looking for :)

[@troystreet]

Exactly what I was looking for. Thank you

[@eottoe2001]

I like my wide-field eyepieces the best, too. Thanks for the post.

[@lkjh467]

Super helpful for a Week 1 telescope owner!

[@joeabad5908]

Thank you Allan.. Your guidance on eye piece selection is precious..

[@aurelioabreu2455]

Thank You Allan. After many tries I found a simple video that explain the different types of eyepieces in a very informative and interesting way .

[@tonygeddes9558]

Very informative, thanks! I’m new to astronomy and guides like this are just what I need 👍

[@geoffalbin2884]

i know this video is older, but THANK YOU for the simple to follow explanation!

[@Izerman13]

You answered my question in the first 90 seconds! Then answered some I didn't even think of. Thanks for posting!

[@JenhamsAstro]

Hi Allan, just found your channel and subscribed. Great explanation of the basics of EPs. Clear skies, Graham

[@joannecrosbie1190]

Thanks Alan, just what I needed to hear! Hope all is well.

[@PObermanns]

This is outstanding!!! My father ground his own mirrors & fabricated all of his telescopes, which I used as a kid. I grew up loving to look at the stars. But now, I only have a small Meade scope, with eyepieces that I got from a friend. I had no idea how use those - now I do! Thanks greatly for your video!!

[@jilsa2230]

wow

[@jclbuxfan]

Who dislikes this video? I want real answers. it just baffles me when people dislike videos.unless it offensive or whatever . I viewed this one and thought it to be very informative that could be very helpful to any beginner. Really people?

[@Izerman13]

Unreal right?? I've watched quite a few videos on astronomy in the last few days and was wondering why people disabled comments on a lot of the amateur videos....this was so informative for me and to think someone would trash this guy for making a great video....why are people so angry now a days??

[@Prod.Nembutai]

Lots of people are even too dumb for a simple tutorial like this

[@MohammedPersonne]

probably other ytubers hating

[@Hofstetter4149]

Very informative and very well explained. Thank you Mr Hall!

[@cadelepski5161]

Fantastic advice. Brilliant delivery from Allan too. You're a natural!!

[@keithskipsey5420]

I have saved this video to watch again later. I have just bought a 12" Dob GoTo as my first Telescope, so the infor you have given here is gold. yes it came with two eyepieces as you say. I was thinking about what I would grauate to later on and what to avoid doing. but how is that mate, people are still watching your video from three years ago! cool stuff. cheers!! clear skies!

[@NyghtWolf]

This is a GREAT video! Comprehensive & concise, this covered all the questions I had! :D I have an old Meade 4500 that I got when I was a kid & honestly I think I was too little at the time to appreciate & understand what a complex device I had been gifted. I still had fun with it, & saw some cool things, but it was a bit confusing for 10yr old me. Luckily, I'm older now & still have it (and it still works great!) so now I'm having fun learning about it all over again! Now I can go out, well informed, & buy my first set of eyepieces! Thank you so much!!

[@The1SuperAtheist]

Thank you for the info. I just picked up my second telescope. I am learning a lot but I really need to be able to explain this to my daughter's

[@2012TheAndromeda]

This was very helpful! Thank you!

[@claudiacontreras33]

Wow this is great! Thank you!

[@jairovanegas8856]

Great presentation on eyepieces. You're a natural and should produce more videos. Thanks.

[@michaellupton335]

Excellent, informative and well presented video Allan. :)) I have a Nexstar 130 telescope, and as a complete novice it has taken me 3 nights just to get the skyalign correct (I am based in the UK). I did not realise till today that I can increase the magnification of each eye piece, to further increase the accuracy of my sky align (I used a 25mm eye piece last night). Looking forward to doing this tonight, we are 29 degrees in the uk today with clear sky’s and zero wind. :))

[@darrenclarkjr4298]

Nice break down Allan - much appreciated

[@peterwatson2913]

Cheers mate, after watching so many vids etc..on eye pieces i was totally confused as a newbie, your video answered all my questions and now i will go and get the correct eye pieces, once again thanks for the insightful vid!

[@vanessabcoleman8]

RIGHT ON TIME! I wear glasses and you helped me understand what I need to purchase.

[@kentestes9776]

Thanks dude. You are the best for beginner understanding we have found. One last request. Please show connection and combinations of the lenses to the telescope itself. Ours came with 10 lens components and no instructions. We are stumped. Some look lie the go together . some have no lens... And one loose piece of glass looks like a splitter or angle... But not in a screw on device . its a Meade ETX 90

[@surendersingal2192]

Thank you sir for giving us briefcase on cost saving by using right c eyepieces.

[@primoroy]

I have been looking for comparisons on 1.25 vs 2 inch eyepieces. Yours is the best. Thanks! 👍

[@devkamdar7120]

Jims with Legendary Auras Thanks for the video, Mr. Dad.

[@rericksen]

can tell you're trying to cover as much as possible, thanks for the video :)

[@SuzanneWhitehead-ot9fi]

Thanks for the down-to-earth explanation! :)

[@toadamine]

Beautiful back yard! My scope cane with a 25mm and a 6mm (both pretty low quality optics IMO). I can get the 6mm to focus on the moon, even woth a 2x barlow but that's about it.. I almost always use the 25, amd throw on a 2x barlow pretty regularly also... The zoom is so extreme at that level, it's hard to even keep objects in the field of view, you'll be chasing them the whole time... it's kinda fun for a second but not relaxing or very enjoyable for long... I also always wear my 3x or3.5x reading glasses, but can't with the 6mm due to eye relief... theyre no issue with the 25mm.. I think I'm gonna buy a 10 or 12mm and a 30+ mm and another 2.5x barlow to upgrade/supplement the cheapo starter stuff that came with the scope.

[@daknarr]

Fantastic video! Thanks Allen. I thought you broke it down really well. Nice explanations, and you answered a lot of questions didn't know I had.

[@Coastingonlife]

Hey Allan I'm stuck trying to decide what telescope to get Celestron Nexstar 8se or SkyWatcher Dobsonian 10" without the Go To , I am a complete Newbie, just want to look up and see some planets and Nebulae with good definition views ,not thinking of astrophotography ,I have $1300 to $1600 to put in it ,what would you suggest ? Type of telescope, eyepiece, barlow ,Focu reduction, etc. Thanks .

[@artbukowski]

Thank you. Very clear audio and concise explanations! Much appreciated.

[@bobbya8622]

Thanks for all the useful, helpful information on eyepieces!

[@scdl606]

Thank you Allan. Very straightfoward and helpful.

[@iskandarthegreat6657]

Great channel, very well explained. Basically, I’d go for a 15 mm and a 24 mm high end eyepieces + a high end barlow x2 and that’s quite enough for > 90% my needs

[@jeffreyfeind]

Thanks finally got the answers I needed with eyepieces

[@calebelkins8600]

Thank you for this informative video. Im a bit new to my telescope, it came with a 25mm. I also got a kit of additional eyepices and a barlow, that has a 6mm, 8mm, 13mm, 17mm, and a 32mm. For fun i tried to use the 6mm on the moon and thought i was doing something wrong, i could not get a clear view no matter what. I will just stick to the 25, 17, and 13.

[@edelcorrallira]

Thank you so much! Man is this a world of stuff to look into :)

[@SeemsLikeSomething]

So quick question, those larger eyepieces will fit into a 1.25” and will also have the larger field of view on the other end where you look through? So does that effectively convert a 1.25” situation into a 2”? Or is there a downside to doing that conversion? I’m really new to this so sorry if that’s a silly question.

[@sherridavis2687]

Sir I did just what you said in the beginning of this video. Buying all these eye pieces and still can't see. Thank for this video. I have learned a lot.

[@jamesromana-powling9596]

Very nicely explained, this is a very informative video and your advice made an awful lot of sense to me, thank you.

[@Hind135]

thank you for these educational videos, good mix of learning and recomendations.

[@luismarielagonzalez-santia4374]

My goodness!!! What a wonderful video!!! It answered all of my questions. Thank you so much!!!

[@mmusgrovetn]

Thank you Alan. Answered my questions, and educated me on lenses and my telescopes.

[@atuldivekar]

Great video. Could you go into details of color and wideband filters and what their applications are ?

[@PaulsWanderings]

I wish I had watched this video before I bought a 4mm, 10mm, 25mm, and a barlow from amazon. It cost me about $53 so it wasn't a total waste of money. I like the idea of the "eye relief" lenses. I wear glasses and it's a real pain trying to use the, let's call them budget-friendly lenses. I need to save up to get those larger eyepieces. I bought a Celestron - NexStar 4SE Telescope - Computerized Telescope. I really like the telescope as I have been able to find things in the sky. I have two other non-computerized telescopes gathering dust in my bedroom because I could never figure out how to see anything other than the moon. With the Celestron, I have been able to see the rings of Saturn and the band on Jupiter with the 25mm lens that came with it. My next goal is to figure out how to take pictures of what I see. I have bought the adapters but I haven't had any luck getting good pictures. Unfortunately, the best viewing for me, I live in New Hampshire is during Winter but the cold is not conducive to comfortable astronomy or astrophotography.

[@jaswas77]

Gold. Thank you! Great advice for me. Can’t wait to upgrade my 25 and 10mm plossls that came with the scope.

[@carllee3522]

This 1 video answered all of my beginner questions. Thank your very much :-)

[@123reivax123]

Excellent tuition... Very much appreciated.

[@westwater73]

Nice easy to listen and understand. I've got a celestrion 130eq coming today £219 not my first telescope yet 1st to have motor mount also have a newtonian scope.. have never researched eye pieces, now I'm interested in the 2inch.. I think I've waited long enough for an upgrade...

[@acubsshadow3750]

Great video with lots of needed info for me. Im waiting for my first telescope to come and i was nervous about wasting time or money not knowing much about the lenses and centering the mirrors as im told ill need to do on occasion. Thanks for taking the time to explain things so clearly!

[@SlykRyk666]

thanks ! Clear up some confusion for me for sure. I see there are zoomable 8-24mm eyepieces out there. Would that be a better choice than multiple eyepieces ?

[@TheRyanLyle]

Great video. Explained everything well. Earned a like

[@basmastersix]

Great video!! Thanks for all the information!

[@rxdekoster]

Clarifying the questions about eye pieces. Thanks

[@markmontessr7085]

Great video. I’ve watched a few today and this one was my favorite. 👏

[@nkrump]

Useful information for me, thank you for making your video!

[@jaybajan]

thank you for your video, im not getting into this whole telescope stuff, since I got one as a gift for Christmas

[@Sotiri-Yiannis]

Thanks, this was a HUGE help. :)

[@isratisrat50]

Thank you very much. I found your lecture very clear.❤❤

[@jimsinnovations2737]

I found a old Montgomery ward telescope in closet. Needs cleaned. And needs eye piece ordered one. Hoping it comes so I can clean it up and check it out

[@dreadeddennis]

Excellent advice and well explained basics of telescope eyepieces. I myself have a 30mm, 17mm, 12mm and a tele-extender. These handle cover everything. Nice job with the video.

[@chrismccaughey3379]

Thank you for this video. I needed some basics for picking out eye pieces for a new Celestron 6Se. I just wanted someone to tell me what they low, mid, and high tiers were so I could make a semi informed decision.

[@emilstnt3495]

a thing i noticed with the higher magnification lenses is that they actually require the sharpness setting to be different even when looking at the same object (not sure if this is just because of the telescope i use) and if you get the sharpness to be better for the lens the object you are looking at seems to be sortof a little bit darker but it still becomes pretty clear from my experience however it also might be dirty and need cleaning as higher magnifications appear to be more sensitive to dirtiness the eyepeice i use is a sr4mm and while i havent tried looking at saturn yet i have tried looking at the moon and some stars that all appear to get more clear however as said i dont know about planets like saturn yet

[@martinkent2822]

Thanks for the break down Allan. I have 2 lenses and a 2X Barlow and decided to try a telescope zoom eye piece. What do you think of those?

[@barbaradonelson3835]

thanks so much for the information...it was easy to understand and now I know what i need for my new scope.

[@alkrugman5421]

i agree with Joilly. Thank you for packing so much golden info into a concise lesson

[@kcimages5157]

Great vid ! Can you suggest what are a couple of good starter eyepieces for my new Celestron 8 HD ? Thanks

[@michaelwilliams9067]

Proper, practical advice. Thanks 👍

[@chrishortonii7532]

New to the hobby thanks for the great information

[@michaelmokhtarani5981]

Thank , thank you , I cannot thank you enough for clearing and answering my questions so freely.

[@AllanHall]

You are very welcome! Be sure to subscribe so you get more great tips!

[@thedindon]

Hey Allan, awesome vid! Are the Stratus eyepieces good in a fast scope?

[@desi97244]

Great video. Are eye pieces a standard size and interchangeable across telescopes?

[@timdawe9774]

Thanks for this, very helpful for us newcomers.

[@LittleLionKubz]

Great video . My 4 year old has taken a keen interest in telescopes an I got him his first one the other week but it's something I know very little about so your video has helped us out a lot...👍👍👍

[@akshatchobdar3038]

Nicee

[@karthikeyanr4727]

Wonderful explanation. Thanks uncle...

[@JoaoEspancaBacelar]

Thanks for the video. You get to use more those 2 eyepieces but with what kind of telescope?

[@jeffbecker8716]

Thanks for the video, but do we need to know if these are Huygens, Plossl, Kellner, etc? BTW, the beginner scope I have has 0.965" diameter pieces and I wear glasses so will definitely be looking to upgrade.

[@mauriciopeterlevitz8902]

Great vídeo straight to the point. One question: do you think a 10 inch is worthwhile when compared to an 8 ? Mobility is not an issue. I am just wondering If the image improvement worth the extra money. Thanks Allan. All the best

[@beanixdorf6977]

Very good info, exactly what I was looking for. And you make it so easy to understand. Thank you

[@robedwards782]

great video Allan, really helped me understand what can be a bit of a mindfield

[@AstronomyLiveChannel]

Thanks for such a nice video - if only I had watched your video a couple of years earlier, I would not have bought so many eyepieces. I ended up spending money on 25mm, 10mm, 4mm along with a 2x barlow - all these being in addition to 30mm and 9mm that came bundled with the telescope! Anyhow, want to know from you if it would be worthwhile to buy a 24mm - 8mm variable power eyepiece. Would be a great help if you can help make a decent selection. Thanks in advance.

[@GCLaredo207]

This was the video I needed to watch! Thank you! I have a question. Last night I found Jupiter using my 25mm and 10mm lens and it looked the same using both eye pieces. Am I doing something wrong? I thought the 10mm would bring Jupiter much closer to me? Just subbed to your channel and am going to binge watch and learn. Thank you!

[@AllanHall]

The 10mm should make the image larger, but it will also make it a little less sharp. If both seem to show the same size image, then I would say something is wrong. See if there is a local astronomy club in your area and ask to borrow a couple of inexpensive eyepieces to test. You might have one that is mislabeled or just bad.

[@TweakRc]

Perfect video, great work.

[@jamiewright1855]

Great video , its helped me understand alot more , i do have one question, what is your view on lenses thats can be adjusted from 7mm-21mm are they any good or a waste of time ?

[@Oxfire95965]

I would appreciate an update on some of the barlows and lenses I currently have a c8 Celestron that I've built from trash I got it up to working condition I really would appreciate an update and links to where we can get the most cheapest barlows and lenses