As the clear cut worlds best eyepiece manufacturer, their name should at least be mentioned in an article like this. If your scope uses eyepieces that are closer to 1, then you have an old style .965 that is now obsolete. By correcting for aberrations, the field of view of these eyepieces could be much larger than the soda-straw field of view in a Ramsden or Huygens, around 40 or perhaps up to 50 degrees. We have compared Plossl against Kellner eyepieces in a previous article. I loved my Baader Mark-IV 8mm-24mm Zoom+Barlow combo in my 8" EdgeHD. Most modern telescopes use a focuser, or diagonal, that accepts 1.25 eyepieces. Celestron Omni Eyepieces: The Omni series is the most economical eyepiece offering from Celestron. Both solutions offer somewhat similar mag-fov-er-price. Ive added comments on where you may find and use them. I have had a good experience with the SVBony brand and the Agena Astro brand. It may very well last you a lifetime and in the long term, you will definitely consider it to be a worthwhile investment. Being a total novice, I love the StarSense app and technology. Eye relief is the distance from the eye lens to your eyeball, and the higher the better (within reason). If the above guide has helped you understand the terms and workings of eyepieces, scroll up and make a selection from our recommendation list. There is a little bit more to it than that and there are other design . Also, note that the pricing is based on 1.25 eyepieces. Some include: Parks Gold Series, Celestron Ultima's, Meade Series 4000 Super Plssls (depending on year / origin / style) and a few others that I don't remember. . I once had to use a 6mm Plossl to attempt to perform a star-test collimation for a telescope at the observatory. The Orthoscopic Plossl eyepiece is for those who are interested in performing close-up work on specimens up to three inches away from them and still get high magnification. They also have good eye relief, making them comfortable to use for extended periods. But will the Baader CO with 1.5-2-3x Barlows deliver a visibly sharper and more contrast view of the Moon and planets than the zoom lens with a 2x Barlow, to compensate for the zooms convenience that is the question! This is just a planning target. I have to say that your questions are answered in the article. If you read the article you know how to calculate the magnification and field of view. As of the past couple years, it seems possible that the choice between Kellners and Plossls has been made for usyou either get what you get with your beginner telescope, or you will have to find a Plossl. I had a newer - purchased in 2016 Meade 32mm (white lettering) that was no better than the older 32mm 4000. dnrmilspec is right. Does having a 70 vs 52 fov make a noticeable difference for double the price? At shorter focal lengths they have less eye relief, and at all focal lengths they have a narrower field of view, than newer types. This type of design also helps provide for eye relief; its a better experience if your eyes. I have since moved up to a 12 Dob but I use the same eyepieces and the BH Zoom continues to be my most used. Yes, eyepieces is a large and complex topic. . Is there anyway you could include links to the eyepieces you mentioned in the last paragraph of your reply as Im totally new so worried about buying the wrong thing! Magnification or power = focal length telescope / focal length eyepiece, Focal ratio = focal length telescope / aperture telescope, maximum practical aperture = aperture X 2, Edges of the optics are blackened for increased contrast, which prevents internal reflections, Anti-reflection, fully multi-coated optics provide enhanced light transmission for bright and clear images. But your point is well taken. And since this article is intended as an aid to beginners rather than a rigorous optics lesson, I think the context I provided works well enough. Press Esc to cancel. The bottom line is that it is best to have several magnification choices so you can optimize the view. These are considered to be the least expensive eyepieces for serious astronomy and are offered in focal lengths from about 6mm to 40mm. Orion Sirius Plossl 10mm telescope eyepiece 1.25" $17.01 I found an ES 70 degree AFOV 35mm eyepiece and am wondering whether I should get this or the Orion 38 70. The original design for Plossl eyepieces has existed since 1860. Today, most beginner telescopes of any quality are sold with either Kellner or Plossl eyepieces. Videos for related products. Consider something between 35 and 40 mm in focal length with an AFOV of 65 degrees or wider for your lowest power eyepiece for your telescope. This can be debated 100 ways, but that is my advice. Some will offer longer eye relief which can be important to eyeglass wearers. Meade 4000 Super Plossl - any good? - Discussions - Eyepieces I would like to know what is best for a 7 year old that would be getting his first telescope. It sounds cool, they must be better than regular Plossls with that name, right? I use some plssl eyepieces, since I still have quite a few in my kit, and yes, the others are correct. the shorter the focal length eyepiece = the shorter the eye relief. Now we have a maximum established. Even though both eyepieces are very common in beginner telescopes, it has become harder to find Kellner eyepieces on their own in the last two years, whether they come from a brand name or the original equipment manufacturer or a reseller. 1.25" Power mates with T ring adapter. But what are the other differences? Better edge correction with a short-focus telescope is one of the things you pay extra money for, and sophisticated eyepiece designs have as many as eight elements. They offer a 52-degree apparent field with clean, high-contrast images. So plan this into such a purchase. That's hard to beat IMO. We have a range of 32 mm to 3 mm. Celestron - 1.25" Eyepiece and Filter Accessory Kit - 14 Piece Telescope Accessory Set - Plossl Telescope Eyepiece - Barlow Lens - Colored Filters - Moon Filter - Sturdy Metal Carry Case. Question: would an 18mm Baader Classic Ortho mostly used for Moon and planets loose sharpness and contrast if used with a short F5 telescope like the Celestron Astro-Fi 130? Explore Scientific, like many eyepiece providers, have higher-priced and budget lines. I have a variety of eyepieces, including Explore Scientific and Meade 82 degree series so I have choices. Sorry but I am not offering a configuration and pricing service. I generally use my 40 to search for DSOs so Ill probably replace that one at some point too. Fully coated with magnesium fluoride on every air-to-glass surface for excellent light transmission and high contrast views. An exit pupil larger than 6 mm may start to show a shadow of the secondary mirror. the reality is that today's eyepieces are all quite good, particulalarly in an f/10 telescope. is pretty forgiving of eyepiece faults and a wide variety of eyepiece designs will work just fine in it. In my opinion, there are no wrong exit pupils. Take a look at your manual or users guide. It costs three to four times as much as the Celestron Zoom, but if you have the budget, this is the one to get. Over time, you may wish to add a specialty eyepiece here or there, but I would not make that a priority until you have filled out your magnification range. You can add the specialty single FL eyepieces later if you wish. But these are only intended to get you started. If we look at the range I provided above, we see that we could replace several eyepieces with one zoom. Plossl vs Super Plossl Eyepieces. Which One is Better? - Little Astronomy These eyepieces have about 35 to 50 degrees apparent fields of view and reasonable eye relief, though quite short for high magnifications. I often recommend a 32 mm Plossl as a good low power wide view eyepiece for scopes with a 1.25 focuser. You can use the same eyepiece on planets and deep-sky objects (DSOs). I possess an embarrassing array of fine eyepieces with names like Ethos and Nagler and Delos. The Japan made 16mm Meade 3000 was a very nice medium power plossl and the 40mm in that series was surprisingly nice as well. Omni 32mm Eyepiece - 1.25" Learn More. No results, please adjust your filters. These are the workhorse eyepieces of today. Meade telescope maksutov eyepiece ETX-105EC Super Plossl 6.4mm 1.25" w capsule. One of the main drawbacks of this eyepiece, though, is the eye relief. What diameter eyepieces will my telescope accept? A Plssl is probably as good as any 32mm eyepiece in a 1.25 inch focuser. Understanding and using a Barlow Lens Find many great new & used options and get the best deals for Meade telescope maksutov eyepiece ETX-105EC Super Plossl 6.4mm 1.25" w capsule at the best online prices at eBay! I often recommend it. And I am a visually observing focused person. Here are a few types of eyepieces you may read about and their typical AFOV. This is where the cheap eyepiece will frequently fail to deliver a good image, around the edges. Your email address will not be published. I started with the Celestron zoom. Something in the 30 to 38 mm range with a 65 to 70 degree AFOV. Plossl eyepieces are very good and fairly inexpensive, typically between $25 and $50 each. Here's the short answer - Plossl eyepieces are generally better than Kellner eyepieces, but they also tend to be more expensive. Best eyepieces for telescopes 2023 | Space So save yourself this future unnecessary expense and just buy a Plossl. Note to spectacle wearers: Plossl eyepieces with 15mm and longer focal lengths are good choices for spectacle wearers but for shorter focal lengths the Celestron XCel LX series have greater eye-relief so are better suited. > Click here to jump to the Best Eyepieces section. I decided to jump in with both feet and get an Orion ED80 (600mm f7.5 with a 2 focuser, So that I can move into astrophotography down the road. The third choice of eyepieces is the Orion 12 mm Sirius Super Wide Angle Correct Image Eyepiece. Within the budget-friendly realm are the 6mm and 9mm Goldlines/Redlines (66-degree Ultra-Wide-Angle) for telescopes with a focal ratio of f/8 or longer, and the excellent 58-degree Planetary eyepieces, sold by a variety of sellers on Amazon and by Agena Astro, which come in a wide variety of focal lengths and are optically superb for their price. I would recommend the Orion Q70 series over that. Achromatic vs Apochromatic refracting telescopes. Here we get into the BMW, Cadillac, Porsche, and Ferrari of eyepieces. 10mm Orion Sirius Plossl Telescope Eyepiece | Orion Telescopes A Barlow lens will not reduce the CA in a low FR achromat refractor so to speak of it changing the focal ratio would, I think, introduce confusion in most situations. Omni 40mm Eyepiece - 1.25" Learn More. If you upgrade the telescope or add a second one, the eyepieces will work on that telescope too. 8.5-ish mm (75x & 150x) A rubber safety cap protects the lens when not in use while also providing additional grip on this 35 mm Plossl eyepiece. The big problem with Plssls is that the eye relief is about 0.75 times the focal length. Thus the 30 mm eyepiece in a 600 mm telescope produces 600/30 = 20X magnification while with the Barlow, we have 1800/30 = 60X. The ocular for your highest visual acuity - for viewing deep-sky objects and the like - should have an exit pupil around . Read the full Earning Disclosure here. 6.5-ish mm (100x & 200x) I would suggest you also get a 2 low power wide view. As I mentioned earlier in the article, not all Plossls are created equal, which simply means that there are good Plossls and then there are bad Plossls. The Big Bang Optics is a participant in the Amazon Services LLC Associates Program, an affiliate advertising program designed to provide a means for sites to earn advertising fees by advertising and linking to Amazon.com. This was my first zoom eyepiece and the one that caused me to fall in love with zoom. Note that the price categories are approximate, as prices can vary between retailers. Kellner eyepieces work perfectly with small and medium-sized telescopes. Pentax 10.5mm Eye Piece Excellent Condition (#314374986239) r***d (1910 . Kellner eyepieces, on the other hand, are generally pretty close to each other in terms of quality so theres little chance you will get much variance in image definition between brands. The 50 apparent field of view is plenty for me. It comes with 1.25 Plossls 25mm (26x) and 10mm (66x) eyepieces. Hi Ed, that is really helpful sorry if this is a daft question but is the baader hyperion 2 or 1.25 or can it be both? 1:10 . Lower power almost always looks better than higher power. I have Celestron and the Baader Hyperion. No price limit. Not everything in the sky benefits from high magnification. The only difference is that they have a different design as well as a shape with their lenses, which affects the magnification of your telescope view. There is one aspect in which a Kellner can actually outperform a Plossl: eye relief. The field of view of a p Plossl eyepiece is typically 60 to 120 degrees. I am a BIG fan of zoom eyepieces, especially if you dont have many. If that is the case, it will give me another reasonably good, inexpensive zoom to recommend to beginners. I did sell them all when I adopted Dioptrx, and the Naglers are amazing! Or we say that F10 would be easier or less demanding on the eyepiece than the F5. Do you need a 10 mm planetary and a 10 mm DSO eyepiece? . At 32mm, a Plssl will give you as wide a field of view as any 1.25mm eyepiece can. 20 = 90 = .8 A Kellner eyepiece has 3 lenses, while a Plossl has 4. You are talking about the technical details of how a Barlow works, and I agree. I recommend it often to beginners on a tight budget. Even if you did need a 4mm focal length (for high powers in an f/4 telescope, of course), neither a Kellner nor a Plossl would have long enough eye relief for that to be comfortably usable! I must say Im quite confused about eyepieces. This eye piece provides the maximum true field of view in the 1.25 inch format. A wide range of focal lengths are available, all in 1.25-inch size. 32mm (20x & 40x). We are a team of active amateur astronomers, here to help you with all your astronomy and science related needs this is anything, from reviewing the latest telescopes to be released to talking about gravity and neurons. Note that we also gained a 16 mm magnification at no additional cost. Generally, to maximize the number of stars you see in an eyepiece with a given telescope, both the magnification and field of view should be maximized. Depending on your budget, if you only have limited funds and are just starting to fill out your eyepiece collection I would go with the zoom, then zoom with Barlow. Also, atmospheric conditions can limit how much magnification you can use on a given night. Now looking for a couple of decent eyepieces. They are most useful in medium and longer focal lengths for terrestrial, planetary, and lunar viewing. My understanding of eyepieces was very limited until I read this article, you explain things in a clear and understandable way which made my understanding so much clearer. If you stumble the first few uses, dont be discouraged. These are just a few examples of eyepieces that I have used, and some that I own. I want to help you select the best eyepieces for your budget and your telescope. She has been looking at the sky for years and hopes to introduce more people to the wonderful hobby that is astronomy. If you are on a strict budget, this is a good choice as a zoom eyepiece. I think you will love it! 17mm Plossl, unbranded, used, no caps, in bolt case; previous owner said it was a very good EP; $18 25mm Plossl, Orion Sirius, fully MgF2 coated on every air-to-glass surface; used; $23 (these are a step up from . You can build a full set of these with good results, but be aware of eye relief, especially if you wear glasses. The only reason it's in this list because of its price and a long focal point. However, for your extra money you get the finest manufacture, the best polish and coatings available. As we continue, what would you recommend adding first? Another way to look at it is that a 30 mm eyepiece in a 3X Barlow works like a 10 mm eyepiece. I have CPC 925 and I currently own Hyperion 10mm, Hyperion 17mm and Celestron plossl 40mm. The 26 and 32 are usually the first ones I reach for. Conclusion. Even though the design has existed for more than a century, it has stood the test of and is still today the standard against which other eyepiece designs are measured. If you wear glasses when observing, you probably want 15mm or more of eye relief, which the 20mm Plssl provides, but the shorter fl ones dont. These have the advantage that the front section with the optics can be unthreaded and threaded on to the filter threads of a 1.25 inch eyepiece. Im fairly picky so would extend budget for better eyepieces if its worth it. I saw Jupiter today and its 4 moons but when I looked at saturn I struggled to get a really clear image and it was very small. I have an F4 Newtonian reflector and if I use an eyepiece of longer than 25 mm, an exit pupil of 6.25, I start to get a dark area in the center of the field of view which is a shadow of the secondary mirror. I have a 4 element (traditional) and a 5 element 32mm Meade, both from the same era in Japan, and the 5 element is much better by quite a bit. Top 10 Best Best Plossl Eyepieces 2023 - Complete Buying Guide Perhaps you have read about planetary eyepieces, DSO eyepieces, and other types of specific eyepieces. Because of this setup, you might also hear a Plossl eyepiece referred to as a symmetrical eyepiece. IF you like your Hyperions , you could get a 2 inch visual back and 2 inch diagonal / or 2 inch SCT diagonal and add the 31 or 36 Baader eyepieces in 2 inch . Another useful aspect of a wider field of view is that, assuming the entire eyepiece is sharp enough to show good images right to the edge, you dont have to nudge the telescope to track the rotation of the Earth as often with a Plossl (50 degrees) compared to a Kellner (40 degrees). Plossl eyepieces have an eye relief equal to about 80% of their focal length. Lets look at the minimum. Save my name, email, and website in this browser for the next time I comment. Kellner Vs Plossl | What's The Difference? - Starry Nova If you were considering a Meade Super Plossl, in that case just get the regular one also by Meade. Again thank you very much for all the information in the page, excellent notes. If you were considering a Super Plossl made by an entry-level brand, just use those extra funds to instead get a regular Plossl made by a more reputable manufacturer. Even when I upgraded to a 6mm Goldline, I kept the Kellner around because of pretty annoying kidney-bean blackout issues on the Moon with that eyepiece. As a kid, I loved looking at the moon (which can be seen any time of day, regardless of ones bedtime) so make sure that the field of view is wide enough to see the whole shebang. What apparent field of view and eye relief do I want? very happy. If I had to give them all up and keep only one eyepiece, It would be the BH Zoom. They are 82-degree AFOV eyepieces. Again, for no other reason than to compare it to the 17mm Hyperion and draw your own conclusions about Plssls. In some cases, an object is so large (i.e., the Moon, the Pleiades, the Orion Nebula, the Andromeda Galaxy) that a narrow field of view can only show you part of the object, whereas a wider field of view could show the whole object at the same magnification. The difference isnt that severe, and I often track more often than is strictly necessary to keep the object centered anyway. This also makes them more resistant to any form of dust getting inside the eyepiece. You can buy a range of these from Modern Astronomy. My Baader Hyperion Zoom is my most used and favorite eyepiece. This SVBONY eyepiece review should get you up to speed with the budget stargazing options. Through the 32mm eyepiece, objects will look larger, and though they may have a lower surface brightness, the surface brightness of the background sky will also be lower. If your focuser/diagonal only accepts 1.25 eyepieces, I would recommend you use a 32mm as your longest focal length, lowest power eyepiece. Below 20 however, the eye relief makes it difficult for me and my glasses so Ive been replacing my 5-15 EPs with 82 degree EPs with more relief. Most telescopes come with one or two eyepieces. These Astromania Plossl eyepieces provide a good way to do exactly that without breaking the bank, and this is what I love about them: they're an affordable way to significantly upgrade your telescopes. In my scopes a simple zoom eyepiece like the Celestron 24-8mm or the Baader has replaced the higher powered plossls. Optics manufacturers began selling and popularizing Plossl eyepieces, albeit with a generally simplified design where each achromatic doublet had the same focal length. Celestron 2026 Erecting Prism Barlow Lens Set is well suited as an astronomical viewing lens kit or for enjoying terrestrial sights like nature walks, sporting events, and more! I think some of these kits even include 4mm eyepieces, and thats ridiculous! They are not that expensive I would pay about $100 for both eye pieces. Those are significantly more expensive than the 1.25 focal lengths. Celestron Eyepieces | Celestron Telescope Eyepieces - High Point Scientific So, for your 30 mm, 82/60 = 1.36 degrees. They have decent eye relief and little curvature of field. See if you will observe with or without your glasses. For our experience level, would you recommend changing anything right now? Free shipping for many products! The view being presented to your eye in a low power eyepiece minimizes everything from optical aberrations in the telescope, to distortions from thermals or atmospheric conditions. The length of eye relief on a Plossl eyepiece ranges from 12 millimeters (less common) all the way up to 45 millimeters with added benefits being that you dont have any issues seeing into your view. For shorter focal lengths, the StarGuider BST series eyepieces have greater eye-relief, so are better suited. The "sharpness" you are seeing may well be better explained by the focal length of the ep than the quality of Plossls in general. Best Telescopes For 10 Year Old Kids: Reviews and Buying Guide, The Complete Guide to the Planets You Can See With a Telescope, The Best Barlow Lenses: Reviews and Buying Guide. I havent addressed .965 eyepieces in the recommendations. I guess my curiosity is mostly about the diagonal. I have personally tested a few Super Plossl and compared them to their regular counterparts by the same brand. You also get 7 1.25 filters which include the following, #80A Blue Filter, #58 Green Filter, #56 Light Green Filter, #25 Red Filter, #21 . 32 mm = 18.75X 16 mm = 37.5X (32 mm eyepiece with a 2X barlow), 12 mm = 50X (If you have a 25 mm that came with your scope, use Barlow for 12.5 mm), 4 mm = 150X (8 mm eyepiece with a 2X Barlow), 3 mm = 200X (6 mm eyepiece with a 2X Barlow), 24 mm = 25X (the low power end of the zoom), 8 mm = 75X (24 mm zoom setting in a 3X Barlow), 2.66 mm = 225X (8 mm zoom setting in a 3X Barlow), True field of view or FOV = Apparent field of view (AFOV) eyepiece / magnification. Amazon.com : SVBONY SV137 Barlow Lens 1.25 Inch 2X Barlow Lens Metal Divide that by the magnification of that eyepiece in that scope. For super Plossl eyepiece, the field of view is typically 40 to 60 degrees. Then there is a pair of 32mm and 20mm TV Plossls which make my binoviewers work well with a Daystar Quark H-alpha solar filter. Just search on Astronomy Club and you will probably find one in your area. Between $100 and $250, I will call it mid-range. The Big Bang Optics also participates in affiliate programs with Clickbank and other sites. Hi Ed, The quality of a Plossl eyepiece completely depends on the brand and model, so be very careful in our selection. Gold line eyepieces are available in 6mm, 9mm, 15mm, and 20mm focal lengths. A typical zoom eyepiece has a focal length range of 8 mm to 24 mm. or a Baader Classic Ortho 18mm with both a 1.5/2x Barlow and 3x Barlow. https://telescopicwatch.com/celestron-8-24mm-zoom-eyepiece-review/. A Televue Plssl may be better than a generic one, but the difference is probably not worth the additional cost. Offering a wide 52 apparent field of view, these 10mm, 17mm, and 25mm Orion Sirius Plossl Telescope Eyepieces provide extremely sharp images of impressively high contrast. now it all makes sense, you did a great job explaining all this information it was a lot to take in but i have it now. When I was getting my start in the hobby, I bought an ultra-cheap ($15?) It is all about your budget, your goals, and your objectives, as outlined in the article. In most cases, these are eyepieces that are focused on wider AFOV or better correction for low focal ratio scopes. 2019-2023 Little Astronomy. Some people have more than 6 and some have as few as 3. If you want to observe the fine details of a specimen, Plossl eyepiece has a higher magnification than an ocular with lower lenses. Each eyepiece gives you a unique magnification based on the formula listed at the start: Why do you need more than two eyepieces? This is the link to the eyepiece I am looking at potentially buying, would you recommend this over the Orion one or vice versa do you think?

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