Telescope Basics 3 (of 6): Understanding common eyepieces for telescopes

[@IcedReaver]

I'm mostly interested in astrophotography but decided on buying an eyepiece for visual. There are so many videos out there >20mins long but you summed the major points up in less than 7mins. Good job!

[@Eyesonthesky]

Thank you so much. It is an old video to be sure, but still relevant.

[@jonathanarcher1209]

Another Hit by David Fuller, just starting my journey to become an amateur astronomer wannabe fledgling, I've found the Eyes in the Sky forum (Web site and KZbin) to be a great companion providing me valuable guidance to make my experience more effective. This entire series is a must, and I only wished I had review these before I rushed out to buy my eyepieces (clearly without knowing what I was doing).

[@JohnnyScience]

This is a great series as a beginner. Bravo to you sir.

[@jenniegps]

Yuotube

[@hasanaskari3839]

Mr. Fuller - You are an excellent teacher in this field.

[@Eyesonthesky]

Thank you for your kind comment!

[@greenglassrose]

This videio was very helpful for me! it gave me a very clear view of all the eyepieces involved! and the quality involved of each eyepiece & telescope. ty.

[@Eyesonthesky]

Hi Glen - good question. There are "zoom" eyepieces, but they are specialized ones, and you'd know if you had one. With typical eyepieces, you will get a set magnification with a given scope & eyepiece combination. You increase magnification with either shorter f/l eyepieces, or a longer f/l telescope. Make sense? See Telesscope Basics 2 for a discussion of how to calculate magnification - that should help you understand it.

[@HereComesTheStormTrooper]

Great stuff. Eye relief is what I need. Now I'll watch the entire serie ^^

[@Eyesonthesky]

You're welcome Diane - glad it helped!

[@jeffreyyoung4104]

Excellent information! It is exactly what you need to know without a lot of fluff! Thank you!

[@knightclan4]

Great video I'm waiting on my first scope to arrive. Backordered till March. I decided to get a zoom eyepiece and a 2x Barlow for the first of many upgrades I suspect. Can't wait to learn the night sky.

[@willumdgork]

Immediately thumbs up'd and subscribed at the "that would be dumb" scene 😂

[@Eyesonthesky]

Very good points, blobrana. I didn't want to get too detailed; just provide a "starters overview." I plan to make some videos that talk more about the advanced designs in the future. I hesitate to talk about eyepiece projection, because done wrong, it can create a lot of heat. Small aperture is a requirement for that, and refractors only as well. But the Huygens is the right eyepiece design to do projection, for sure - well, that or the Ramsden.

[@freeman10000]

The eyepiece at 4:36 is a 16mm Meade series 3000 plössl. One of my favourite eyepieces and a joy to use despite owning more exotic and expensive glass.

[@Eyesonthesky]

Indeed it is. I still have it and use it on occasion. Bought that a loooooong time ago too.

[@rusko123]

jus got 1 for xmas..not a clue..untill now ..you are my saviour..good stuff m8

[@Eyesonthesky]

Glad to help. :-)

[@jamesstevenson4099]

im new to this and this is the clearest video I have seen to help decide on what sort of EP to buy! thanks!

[@Eyesonthesky]

Thank you for the nice compliment; I'm glad it helped you. :-)

[@Eyesonthesky]

I think the Celestron Accessory Kit provides a better, more useful range of eyepieces, though I am torn because Orion does offer excellent customer service.

[@Eyesonthesky]

Gabriel, I am not entirely sure without seeing them, but as I understand it, single layer anti-reflection coatings are purple; multi-layer anti-reflection coatings are green. There are other COATINGS that can be applied to optics (red, gold, blue, etc.), but whether they are useful/helpful for anti-reflective purposes is another matter. So they may be coated, but will they reduce light scatter and increase light throughput? I don't know.

[@Eyesonthesky]

The classifieds section of Cloudy Nights is a good place to look for used astro-products. I am not presently selling any astro-gear.

[@Eyesonthesky]

It still may be considered a Plossl, as in order to achieve the very short focal length some changes to the optics may be required, but I don't know enough about that to be sure. 4mm Plossls have VERY short eye relief though; I imagine that is hard to see through.....

[@Eyesonthesky]

This video did not "forget" about orthoscopic eyepieces, as it was not intended to be a comprehensive look at every single eyepiece type available; it focused on the most often supplied or purchased beginner eyepieces. Orthoscopics are indeed excellent eyepieces, but it did not make sense to include them here as they are neither supplied with new scopes, or are available new. Wide angle lenses are varied in type, performance and price and even eyepiece purists argue over which is best.

[@oscarb9755]

Great videos you got going on here. Very informative. You know your stuff. Thanks for the info

[@fredsundermann5799]

I love these videos, clear and concise and understandable to a neophyte like me ! I own an Orion Astroview 120ST with the included 10 and 25mm, 1.25" plossel lenses. I'm will be adding a 2 or 3X barlow and question what would be the advantages of "switching" to 2" lenses? assuming they would be more expensive than the corresponding 1.25" lenses.

[@Eyesonthesky]

With 2" lenses you do gain a bit of apparent field of view, which does increase the resulting telescopic field of view. But that comes at the expense of cost and weight. So very often the larger 2" eyepieces are used for longer focal lengths, to gain additional angular view at lower magnifications.

[@GaryMcKinnonUFO]

Great stuff, really enjoying this series. I have a cheap Bresser astrocam feeding through to a laptop since it's more enjoyable than looking through an eyepiece.

[@jesseburgess2]

I have a Celestron 114LCM. What eyepiece do I need to get a good up close view of the planets Jupiter and Saturn? The telescope has a 1000mm focal length, f/9, 4.5" aperture

[@aemrt5745]

Plossls are good mid level eyepieces. They perform well and will not break the bank. I have used them for decades. Been happy with Celestron and Orion's lines. Favorite is my University Optics 25mm bought in 1984. Still use it on my 102mm refractor. Unfortunately University Optics no longer exists. Though now I use Tele Vue Naglers and Dioses for my main scopes (incredible eyepieces, but they will break the bank), I still use Plossls for my smaller portable refractors.

[@freeman10000]

I use pricey Televue eyepieces but more often or not I will use an old but trusty plössl that I may have owned for thirty years.

[@Eyesonthesky]

The problem with a 1.25" 40mm Plossl is that the AFOV is restricted. A 1.25" 32mm Plossl will provide the same TFOV as a 1.25" 40mm Plossl, but the 32mm will darken the sky background more - it's probably a better option. Part of the issue you will have is also your telescope; an 8SE is a long focal length instrument. There are two ways to increase your TFOV: 1) Eyepieces with wider AFOV, or 2) a focal reducer. Try a narrowband LP filter for nebulas/galaxies.

[@MichaelThompson-tj6nw]

would this be the same for a 12" Revelation Dob with a 1520mm huge focal length?

[@gaby2759]

hi david, a few months ago, i bought the celestron powerseeker accesory kit at an affordable price, anyway, in the instructions manual says that they are fully coated kellner eyepieces, and the reflection is blue, instead of green or purple... any ideas?

[@priyangald4277]

Thankx Lot, It's really helpful to choose right Telescope for me. Please keep it up your good work.

[@Eyesonthesky]

There are very few 2" eyepieces that fall into the "simpler" designs categories - most are complex designs, and very expensive - and there really aren't any "beginner" telescopes that offer them (of which I am aware). I was simply noting them so viewers would know they exist, but the video is intended to be more about eyepiece designs, not so much barrel sizes.

[@tareshgupta1095]

can you explain the optics behind the working of a plossl/orthoscopic/ramsden/kellner eyepiece ? i am tryingto make one with the help of a 3d printer and lens . anything regrading design/construction/mathematical formulas .

[@lyricaldjdora]

Hi. Firstly I would like to say thank you and a job well done on your video series. I learned a lot from your videos. I just bought a Celestron Astromaster 114EQ and I was wondering, how does it cope with humidity? I am living in Germany and during winter it can be quite humid indoors. Any tip on where should I place my telescope? Thanks again.

[@SEAL4NAVY]

Can you help me to take decision , I'm confuse which to choose 40mm plossl 1.25 or to upgrade to 2-inch , my aim now is to hunt nebulas & galaxies and if 40mm 1.25 could bring DSO inside FOV like M45 & M31 or those target is so big

[@wuteverfloatsurkayak]

I'm considering adding a higher power eyepiece and I have a question: How would you calculate the "maximum useful magnification"? One source said 2x the aperture in mm, which would rate my Celestron 114 up to 228 power. However the user manuel says it's good up to 269x and gives the formula of 60x aperture in inches (4.5"x60=270). If the manuel is right, I might buy a 4mm which would give me 250x (1000mm focal length). But if this surpasses my scope's usefulness then perhaps a 6mm (167x) eyepiece makes more sense. I've considered a 2.5x barlow lens but I think just one more power option added to the two stock eyepieces (10 & 20) will suit me fine. Your thoughts are appreciated.

[@Eyesonthesky]

wuteverfloatsurkayak Keep in mind that "maximum useful magnification" means the maximum you can used on PERFECT nights: Absolutely still seeing, the scope and mirror are fully cooled, and there are no thermals rising in front of you from pavement, roofs, or other objects releasing heat. Even then, your scope must be perfectly collimated, and the object you're viewing should be at least 30 degrees above the horizon. In most places, that will happen about 2 to 4 times per YEAR. In others words, don't plan on using the maximum practical magnification very often, whether it is 228 or 270. More often then not, the atmosphere will limit you to 150, 175 or 200x most nights. Hope that helps in your decision-making process. :-)

[@wuteverfloatsurkayak]

That's helpful. Thanks a lot!

[@steven21jess]

hello, im new to all this, i have standard eyepieces the cheep ones that come with the Seben-Star Sheriff 1000-114, wen i try to look at jupiter its a fuzzy ball thats not that big in focus with a 2x barlow and the H20 or H12.5, do you know the best eyepiece to see her for what she is?

[@ericccowan]

Thanks dude!! Good stuff!

[@francisfrancis4219]

Whether 1.25” or 2”, do telescopes all have a standardized image circle size at the focal plane which the eyepiece focuses on? What is the image circle size? How much of an optical compromise does such standardization create? Are there times when you need to match the image circle of the eyepiece to the telescope i.e., the optics have been perfectly matched requiring a dedicated integration? Sorry, I don’t know anything about this subject.

[@Eyesonthesky]

I am not sure exactly what you are asking. Most eyepieces will work with most any telescope. In some cases, the combination may produce too little magnification and therefore a too-large light cone for the human eye, though in general this doesn't matter too much. In other cases too much magnification is produced; this can be an issue because eventually the image cannot be focused well and the light cone is too small to see good detail. I hope that answers at least part of your question.

[@larrywiseman5534]

love your videos. Question? is it okay to leave a telescope outside i. e. overnight in the heat or the cold if its completely covered?

[@Eyesonthesky]

In most cases, yes. You do want to be sure that critters (animals / insects) or people cannot mess with it, obviously. And rain/snow are not conditions you'd want to subject the telescope to, even if covered. But in general, they are well suited to withstand heat and cold - just also be aware of the potential for temperature changes to cause dew or condensation, though often if left outside, that's not usually a problem. In short, use some good sense, and you should be fine.

[@PuneetBanga26Aug]

Hi Sir, need a information for eyepieces, i have orion xt8 inch Dob telescope. Is explore scientific eyepiece 52° LER 10mm AR 1.25" eyepiece is good to use with my telescope, performance wise ???

[@dankuspanku4650]

Something I can't find on the internet is that if it's O.K. to use, in this case a Bresser Plossl okular on my Sky-Watcher telescope. It doesn't matter what brand it is only what size the diagonal is, which now is 1,25" so if I buy a Bresser okular in the size 1,25" I should be alright, right? (Probably a silly question, lelelel :P)

[@Eyesonthesky]

+SteelWing You are correct; as long as the barrel diameter of the eyepiece is the same, you can use different brands.

[@JohnCranberry23]

Hi David. Love the channel, new to astronomy. I purchased the Skywatcher ED80 / 600. My question is how does the eye piece affect the focal point of the image. I'm not referring to viewing objects with the naked eye, but rather my Nikon DSLR. For example. I attach my DSLR directly onto the refractor, no diagonal, but with an extension tube as needed to achieve focus. So then I insert a 28mm eyepiece to magnify the image on my DSLR but I no longer have focus and when I back up the Crayford I run out of focus tube and can't focus. Do I then keep adding more extension tubes or am I doing something wrong?I have ordered more extension tubes on ebay but while I wait for them to arrive, I thought I'd get someone with more experience to explain to me how I can successfully take more magnified pictures of Jupiter or Saturn and the moon. Should I use the diagonal?

[@Eyesonthesky]

JohnCranberry23 I think you need to use a Barlow. Most people dont do eyepiece projection photography anymore, except with a cell phone held to the eyepiece.

[@SEAL4NAVY]

I forgot to tell you , I use celestron 8SE .. And I have also question , which filter is suitable for nebulas & galaxies

[@alphaphotoandvideo]

so a 2in eyepiece Will yield more brights views?

[@Eyesonthesky]

It depends on the brand and type. I don't know a lot about them, except that many years ago, they tended to have restricted fields of view at longer focal lengths. I'm not in Chicago; I'm south of the city a ways. I do get int the city sometimes though. Search for "Chicago Astronomer" and join his forum - I go to his events sometimes. DSO's from the north side this time of year (to start) - hmmm... try M3, M13, M57, M81/82 and M92 - there's some brighter/better ones in summertime though.

[@happycoloredmarblez]

Thanks! I'm already part of the forum. Chicago Atronomer is how I heard about you.

[@norierosen9386]

need help, just bought a new vega 360 telescope but cannot see anything through it. i followed the instrusctions but seen nothing. pls help

[@Eyesonthesky]

+Norie Rosen What did you aim it at? Is the main lens cap off? Is it in focus? Has the finderscope been aligned with the main telescope to aim it properly? It is usually best to try looking at it during the day first - please watch the entire Telescope Basics series; that should help you get everything set up properly and using the right eyepiece to start as well. www.eyesonthesky.com/Videos/TelescopeBasics.aspx

[@happycoloredmarblez]

I just bought a zoom eyepiece, it's pretty nifty! Do you know what the drawbacks to one of these are? Also, are you based in Chicago? I thought I read that somewhere. I'm wondering what DSOs I can see from the north side in a darker park.

Helo , I just bought a stellervue, 50mm refractor and want to maximize the power. I have a 25mm plosii and the barlow lense of twice the power but seams like more, The little rascal is only 4.1 focal lenth. I was wondering if I sould invest in a better barlow or eye pieces.

[@Eyesonthesky]

Kevin Mccarthy the maximum practical magnification for a 50mm telescope is 100x, and that's under ideal conditions. You're limited by the comparatively small amount of light you're trying to magnify.

[@kennethireman1776]

Why no links to the other videos?

[@PuneetBanga26Aug]

Hi, i have Orion xt8 dobsonian and wanted to know, is Orion E-Series 7-21mm Zoom Eyepiece is better then individual plossl eyepieces. And please let me know eseries eyepiece are plossl, means crisp image as plossl eyepieces does.

[@Eyesonthesky]

Individual Plossls will be your best option.

[@mavenfeliciano1710]

Reminds me of those 90’s school videos that were cool. 😎 You should totally be syndicated, though not sure if students have classes with the current situation. There’s always online schooling; guess syndication still is possible. I would have enjoyed this in junior high and high school.

[@Eyesonthesky]

Thanks! Maybe one day... :-)

[@mansamusa1743]

Would a X-CEL lx 5mm eyepiece be good with a 700mm focal length refractor,the magnification it would produce is x140,which is within my resolution

[@bluescorduroys3523]

Ive been thinking abt upgrading my focuser.. With a duel speed.. I also was told a 2in would be a good upgrade. My question is .. Would it be worth going 2in and using my 1.25 eyepieces? Being i would using those for awhile until i can afford 2in eyepieces..

[@Eyesonthesky]

A dual speed focused is a wonderful thing. And you can most definitely still use 1.25" eyepieces in it until you get 2" ones.

[@mattsmith010171]

I have a crescent telescope which is a astonomical scope D-80mm by F-1200mm. My 12.5, 9, and 6mm have a HM on the top of the eye piece what does that mean? Any body know.

[@coffeebotography]

HerMaphrodite

[@SpinoGamingYT]

Hermaphrodite

[@davidjames4915]

'HM' is Huygens-Mittenzwey. Compared to the Huygens shown at 2:15, the field lens (the lens nearest the light source, in this case the lens at the left) is a miniscus, so both surfaces are curved instead of one being flat. Design-wise it's an improvement on the Huygens but like the other Huygens and Ramsdens built today, it's probably of poor quality.

[@omni1951]

what telescopes do you own?

[@Eyesonthesky]

Unfortunately I have never used with of those eyepieces, so I cannot provide any guidance on their performance.

[@btsnable]

what is the most quality eyepiece you can recommend for celestron powerseeker 127eq?

[@Eyesonthesky]

I try to ask what a person's budget is for that, as there are eyepieces that cost $1,000 to $1,200. But in general, the Orion Expanse lineup is a pretty good one that covers some decent sizes and offers and expanded apparent field of view. As such, it makes it easier to take cell phone photos of the Moon with them, and sometimes planets. They run about $50 each, which is pretty reasonable for what they are.

[@fidelpalma5164]

Sir, I'm now suscribed.

[@VivekTiwari-dv5ll]

Hlo sir i hav celestron astro master 130 how i can increase focus magnitude or all things ...plz suggest i hv 20 n 10 mm lens .but i m not satisfied with it plz help

[@lemonmelon8095]

Soo when I buy a telescope can I use it straight away or do I have to buy these eye pieces in order to see stars n stuff

[@Eyesonthesky]

Ayy Lmao most telescopes come with an eyepiece or two. But if it doesn't have any, yes, you will need one before you can use it.

[@shadowsteve68]

Great video, really helpful

[@kochmatheus]

Have you some things, that you don't use anymore, to sell? Like the focuser in 1:28. =P

[@blobrana]

It should be said that Huygens eyepieces are excellent for projecting the Sun onto a blank screen (solar projection), and 'Orthoscopic' designs are great for planetary viewing. Another point is that many 'wide angle' eyepiece designs have some drawbacks; lots of individual lenses in eyepieces have the negative effect of light scatter, absorption and 'ghosting' unless they are carefully designed and have excellent lens coatings. Also there are nasty 'kidney bean' effects in some designs.

[@sdp123321]

David, 1st, I love and appreciate the videos. Thank you. 2nd, could you (or anyone knowledgeable) help me figure out gaps to maximize this experience? I have an Orion Skyview 8" EQ w/25 & 17mm lenses. What lenses/Barlow should I buy for this rig.? There are a couple Orion lense/filter kits, but the math you were doing threw me off a bit.

[@Eyesonthesky]

sdp123321 Don't get the lens kits. Calculate maximum practical magnification first (for you, 400x). Then calculate what eyepieces will fill in the gaps between that and the ones you have. Purchase accordingly. Hope that helps!

[@bluename4]

how can different eyepieces be used with a DSLR camera to photograph what one sees?

[@Eyesonthesky]

Well, you'd probably have to find an old eyepiece projection adapter, as I'm not sure they are made anymore. Most people use an appropriate magnification Barlow lens and a T adapter for their DSLR.

[@iiiDartsiii]

So is it better to stick with the 2-in eyepieces instead of downgrading to 1.25?

[@Eyesonthesky]

Not necessarily. In some cases, a 1.25" eyepiece may provide a wider field of view with more magnification. But all things being equal, a 2" eyepiece provides a wider field of view. But not everything is equal, so it can take a bit of figuring to decide what is best for your telescope and your budget.

[@iiiDartsiii]

@@Eyesonthesky it's a trial-and-error kind of thing then, I figured 2" being wider should at least bring slightly more light.

[@tuunaes]

@@iiiDartsiii Telescope's aperture is what defines light collecting power.

[@misterysmithers8566]

So, a 2800mm Matsukof-Cassgrain has too little aperture to use anything less than 8mm eyepiece? (gives it 350 magnitude on a 7.1 inch aperture) Same with a 1800mm Matsukof-Cassgrain using less than 6mm eyepiece? (gives it 300 magnitude on a 6 inch aperture)

[@Eyesonthesky]

Mistery Smithers yes. It's squeezing too little light into too much magnification. Eventually it just is magnifying a mushy image.

[@misterysmithers8566]

Feels like the 2800mm has a lot of lost potential, considering a 4mm eyepiece would bring it to 700X, is it the design limit for a cassgrain?(7 INCHES/180MM)

[@Eyesonthesky]

Mistery Smithers no, it's a function of aperture, not the telescope type. The same is true of a comparable size refractor and reflector.

[@misterysmithers8566]

Can you name reliable brands for eyepieces/barlow. Maybe show what are the low quality brands/acceptable quality/high quality. Ebay is driving me crazy! (Of course everything is advertized as "best-of-the-best!")

[@Eyesonthesky]

The maximum practical magnification for any telescope is about 50x per inch of aperture. So don't exceed 150x for a 3" telescope, 200x for a 4" telescope, etc. - and often seeing is limited to 150x with *any* telescope due to the atmosphere's effects overhead. I've provided the tools in the prior video (Telescope Basics 2) so users can know how to calculate magnification for their own telescope and eyepieces combinations. Hope that helps - clear and dark skies!

[@waatao9856]

So 25 mm lense is for closer objects? I have a 10mm and 4mm plus a 1x5 long one that puts the image upright can someone explain what my lenses are used for?

[@Eyesonthesky]

beezy yo if you watch this entire series of all six videos, you'll get a good understanding of most basic telescope equipment including eyepieces and field of view.

[@augustarnold2349]

Just got a 3x for my travel scope 70. Is this too much for this model? would a 2x work?

[@Eyesonthesky]

Without knowing the focal length of your telescope or the eyepieces you plan to use with it, I am not able to provide any guidance. Basically, "dont exceed 50x per inch of aperture" is a good general guideline.

[@extremegamer4202]

How w can I know if my telescope is amateur or a small telescope

[@poksi360]

Google it.

[@gamaltk]

+Extreme Gamer Amateur means non-professional, which doesnt have anything to do with size... What do you mean?

[@vishwamukhbharadwaj1211]

Sir, Pls help me decide if planets will be visible with Lens DIA 50mm /FL 600mm & 10mm Kellner. Thanks.

[@Eyesonthesky]

Most of the planets are visible naked eye. But 60x magnification is not going to show very much planetary detail.

[@vishwamukhbharadwaj1211]

@@Eyesonthesky Sir, Thanks for your prompt reply. May I request you to please suggest a combination of objective lens and eyepieces which will help me to see the planets. Thanks.

[@Eyesonthesky]

@@vishwamukhbharadwaj1211 you need more aperture. For a better view of the planets, 150x to 200x is needed. To get that kind of magnification so it is clear, you need minimum of 75mm to 100mm of telescope aperture (ideally more, like 150mm).

[@vishwamukhbharadwaj1211]

@@Eyesonthesky Sir, Thanks for your reply. Your prompt help will enable me to make the right choice of materials to build a telescope to see the planets. Your videos are brilliant. Please keep up the good work. Thanks.

[@Eyesonthesky]

In my defense... I bought most of them used. And most for WAY less than you might think. (No, I didn't steal them - I'm just really patient when it comes to buying scopes.) But scope hoarder? Yes. Guilty as charged. ;-)

[@augustarnold2349]

400I'm. Thanks for I am new at this and I thought it was an economical way of seeing more by getting the Barlow 3x. Will it work if I put a 2x with the eye endk. o.k.

[@Eyesonthesky]

As long as your total magnification with whatever eyepiece you use does not exceed 50x per inch of aperture.

[@morningstar7009]

Plz tell us the difference between a telescope eyepiece and that of a microscope. If there is no difference, plz tell us too.

[@Eyesonthesky]

The first amateur telescope eyepieces were microscope eyepieces (hence why the 0.965" standard exists). In the past 3 or 4 decades, telescope eyepieces have become more specific to telescopes.

[@morningstar7009]

So u mean they r the same. I get it. Thnk u..

[@BunnyRaptor]

Maybe my mind is in the gutter, but it look kind of-lets put it this way- mysteriously enlightening of what you did at 1:10

[@vijay6543211]

Nice collection sir .. actually I am using 10x form my self made , can we use the binocular one's , I am from INDIA ........... re -research scientist .

[@stymebone6603]

I know video is 3 years old, but it just got to me. Lol. Thanx! Subbed

[@Eyesonthesky]

Thanks for the sub!

[@Jules7892]

This Video/Audio Forgot about the Superb 4 Element"Orthoscopic"50 Degree Field Eyepieces even though they are NO longer available,Orthoscopic Eypieces Perform better than ALL Possls.Orthoscopic Eypieces give Perfect Edge to Edge pinpoint Stars & Flatter Fields across the entire field of view. Also , you have Wide Angle 6 Element,7 Element,8 Element Multi-Coated Wide Angle Eypieces, Tele-Vues and Naglers but they are very Expensive $300++ Each.I use SkyWatcher 66 Degree Wide Angles Multi-Coated!!

[@coffeebotography]

MAGA Make Astronomy Great Again

[@rheyza4475]

hahahaha...oy and he was doin these way before trump was prez.

[@ronaldwest2264]

John Russell... hasn't Astronomy always been great? Lol

[@anwynanimations7207]

😂👏

[@rishabchaudhary4489]

I just got a very expensive, first telescope from amazon. But I'm doing things wrong. Just can see creators n moon stuff. I wanna see rings. 😔

[@izanagisburden9465]

@@rishabchaudhary4489 what telescope is it bro... I have basic celeston powerseeker 70az refractor.... Haven't used it for 3 years because of high light pollution in Kolkata/patna.... hopefully I'll get enough time and freedom in between my physics bsc now that I'm 18 and returning to kolkata

[@haryono.gurumu]

Is FOV of SR4mm 35°?

[@Eyesonthesky]

About 35:to 40, yes.

[@vishwamukhbharadwaj160]

Great video

[@Eyesonthesky]

Thanks!

[@cranjismcbasketball2118]

My neighbor gets changed with her blinds open... i love astronomy!!!

[@MsBouncingbetty]

Nicholas Brody?

[@punisher6387]

I wear glasses whats the best eyepiece I should buy

[@Eyesonthesky]

There are many that could work well. Look for ones with longer eye relief (15mm to 20mm). Orion Expanses or Explore Scientifics 82 degree eyepieces are good options.

[@punisher6387]

@@Eyesonthesky do you think the celestron firstscope 76 would be good ,I'm a beginner and it says that it's good for users with glasses

[@Eyesonthesky]

@@punisher6387 with different and better eyepieces than come with it? Yes. With only the eyepieces that come with it? No.

[@aryan5311]

You are funny but factful.. btw love your videos

[@Eyesonthesky]

Thank you! Lots more content on my channel too.

[@hakman239]

Isn’t purple 5-6 layed and green 9

[@Asereco1968]

Give me like if you want this intro theme in ALL Eyes in the Sky´s videos.

[@americanhindi]

I liked the trump part. Funny! Good video. Thanks.

[@natanluisp]

poe um video em portugues

[@davidbrandenburg8029]

don't forget the 2.7 inch and then 3 inch focuser and eyepieces

[@Eyesonthesky]

Those are not common sizes though.

[@estebangonzalezventura3976]

why don't they just have a tv chanel that you can control a telescope with i think its possible

[@fidelpalma5164]

Thanks a lot!

[@user-vr2ie5qd2j]

1:13 oh yeah

[@unholyosiris]

I was disappointed to see you display 2" eyepieces but you didn't even talk about them once in the video... :-(

[@babblusrishanth1527]

Nice man

[@sj9350]

BRODY???

[@davecarsley8773]

The Trump stuff is even funnier now considering current events

[@Eyesonthesky]

+Dave Carsley Oh geez, I'd forgotten about the little humorous "Trump" bits in there. They weren't meant to be political at all of course - just some silly stuff meant to make a pretty dry subject a little more interesting!

[@RobBob555]

+Eyes on the Sky GO TRUMP !

[@lawrence8299]

especially when Trump is going to election after 4 years this video was posted

[@franciscoramirez789]

+rob b Shut the fuck up, donald would most likely defund NASA. He's too stupid to understand astronomy, he probably thinks it's the same as that pseudo-science astrology

[@donaldtrumpet4111]

nice try taco ramirez but we're gonna build a wall and a telescope

[@austinseph1]

The trump juke is probably funnier now than it was in 2012 lol

[@confidentwreck]

That sounded like Enya in the intro

[@lxke.v3457]

*speaks complete jibberish* uh yeah yeah I get that. *Eye relief* WAIT WHATTTTTT

[@k.h.1587]

H and R are not good with fast telescooes, nor are kellners