That is why I suggest, if you can use 2 eyepieces, you will want one or two low power wide view 2 eyepieces. I have just one Meade product currently and that is a series 4000 1.25 inch UHC type filter which I use for outreach. There is the 56mm Meade Plossl which magically turns my short FL refractors into their own finder scopes. Meade 32mm 2" 5-element Super Plossl Wide Field Eyepiece That is up to you and your budget. In the box you'll receive 5 1.25 eyepieces at following sizes, a 32 mm Plossl Eyepiece, 17 mm Plossl Eyepiece , 13 mm Plossl Eyepiece, 8 mm Plossl Eyepiece, 6 mm Plossl Eyepiece, a 2X Barlow Lens 1.25. Celestron Omni Plossl Eyepiece | First Light Optics Despite the narrow field of view and short eye relief, it showed shockingly good views of Saturn, Jupiter, and even the Moon. or a Baader Classic Ortho 18mm with both a 1.5/2x Barlow and 3x Barlow. Sorry but I am not offering a configuration and pricing service. but the meat of the article is about understanding the considerations and specifications to know when selecting eyepieces. Eyepiece Field of View Simulator astronomy.tools Field of View Simulator Change Telescope Reset Change Target Add Equipment Over time, you will likely spend more on eyepieces than on the telescope. Comparing to Plossl, the Expanse eyepiece is a lot more expensive. Im also uncertain about what to expect from an additional investment? I dont dabble in AP. I have not had an opportunity to test it yet but the general discussions have favorable. Aspheric eyepiece is a variation of Plossl design, it has an anti-reflection coating on the front glass surface to ensure maximum light transmission and will also provide your instrument with better quality images if you need higher magnification levels. At least you'll have one budget eyepiece that will give you a larger part of the sky at low magnification. The design uses a planoconvex, two cemented-element eye lens and a large convex field lens. Ever since, I have been attempting to cram in every fact about the Universe, I can find into my head. The design of a Plossl eyepiece consists of an objective lens with one side that is convex (wider than its length) while the other side is plano-convex or flat in shape. If you feel the need to buy something now, consider this Orion diagonal. Over $250, I will label premium eyepieces. The result in magnification is the same and the eye relief associated with the eyepiece is retained or, in some cases, actually lengthened a bit. Orion Sirius Plossl 10mm telescope eyepiece 1.25" in very good to excellent 185794462395 One of the TMB Planetary eyepieces are extremely nice for 50. Sooooo helpful! Plossl eyepieces are great. Your email address will not be published. Features : 5 superior-grade Plossl eyepieces: 1.25-in, 4-element design with a 52 AFOV (32mm has 44)4mm, 6mm, 9mm, 15mm, and 32mm . Or is this overkill and am I better off saving money and going forward something like the Celestron Zoom? Orion Q70 38 mm works well. It also was considerably more expensive. 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. Despite this, I also have some Plossls which are indispensable. For your application and the eyepieces you have or are going to get, you really dont need anything else. There is a little bit more to it than that and there are other design . Best suited for telescopes with f-ratios f6 or slower. 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 guess my curiosity is mostly about the diagonal. The tradeoff was that each lens surface added another internal reflection, reducing contrast and adding glare. Very worth it for me, as I like to use bino-viewers. On the inside, they are exactly the same design. If you are upgrading, avoid ones that say correct image as these add a prism system into the diagonal which can reduce the light transmission. Any 1.25 eyepiece will work with the BH Zoom 2 adapter. Explore Scientific 68 34 mm or ES 82 30 mm would also be good choices at a significantly higher price but with better edge correction. A long eye relief is also important for those who wear eyeglasses at the eyepiece, whether thats a member of the general public at a star party or an astronomer with astigmatism, which, unlike near- or far-sightedness, cannot be corrected with the telescopes own focuser. there are of course options to plossls which are about the same prices as GSOs such as the BST Discoveries and TMB type eyepieces (new from Skies the Limit on Ebay) which have a wider field and better eye relief than plossls and are probably as good as most things non-premium. Amazon.com : SVBONY SV137 Barlow Lens 1.25 Inch 2X Barlow Lens Metal It all comes down to cost-benefit. I dont think so. 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 often recommend the 2 in this series as excellent low-power wide view eyepieces, especially in scopes at focal ratios below F8. This is perfect for a 25mm Plossl (an extremely common standard) and downright luxurious with a 32mm Plossl, but when you get below about 12.5mm or 10mm, it can begin to get difficult to use. Because the eyepiece was still similar enough to a Plossl and still kept the symmetrical design, they called it Super Plossl. These eyepieces are technically called Symmetrics, since Plossls can have different focal lengths for each doublet, but they are always marketed as Plossl. Good value. Even though there are more sophisticated types of EPs, Plossls hit the right spot between high-quality optics and price. They all work, but as you go up in price, you gain features or performance or both. Gold line eyepieces are available in 6mm, 9mm, 15mm, and 20mm focal lengths. A Plossl eyepiece has a lens thats plano-convex, which means it is flat on one side and convex on the other. For planetary viewing, comfort is essential in helping to increase viewing time . Excellent article, thank you very much for taking the time to publish it. But just because an eyepiece is 2 doesnt mean it has a wider field of view than one that is 1.25. Suggesting an F6 scope becomes an F18 would also imply things like reduced CA in a refractor. If money is not a concern, you cant go wrong with Tele Vue eyepieces, any Tele Vue eyepieces. But these are only intended to get you started. A decent barlow might cost as much or even more. Or take one of your eyepieces and measure across the bottom of the barrel. If you wish to find a short-focal length eyepiece with a longer, more comfortable eye relief, you could use a long-focus eyepiece with a separate, high-quality barlow lens (an achromatic or apochromatic fully multi-coated barlow would be necessary), or you could purchase one of the several designs incorporating a smyth/barlow lens into the eyepiece design. 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. These are matters of individual preference and budget. Thanks all. If that surface is wobbly the scope will be almost useless. Meade 4000 Super Plossl - any good? - Discussions - Eyepieces Plossl vs Kellner Eyepieces: Which Is The Best? - The Big Bang Optics The longer FL Plossls (>15mm) have some distinct advantages over more complex designs without the major disadvantage of Plossls which is short ER. We often end up spending more on eyepieces than we did on the telescope. Is it just about finding and framing, or do wide fov EPs create a more immersive experience? I still use my 30mm Celestron Ultima fairly often with some of my telescopes. The ES 82s are my favorite eyepieces, especially in the 1.25 format. These will normally be higher priced and may be outside the price range we show here. When a beginner is choosing eyepieces on a budget, there are a number of possible designs they may choose between. Why not go back to the people who sold you the scope and get their help. For one thing, a wider field of view is almost always more pleasant. Sony A7III vs A7RIII Astrophotography: Which One to Shoot Infinity! 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. I must also warn you that some of these bad Plossls may actually turn out to be worse than any run-of-the-mill Kellner. And new proprietary designs come out from time to time. Choosing the most appropriate can completely change your experience in using telescopes. Is there much of a difference between the celestron and haader? Plossl vs Kellner Eyepieces. - Little Astronomy The 21mm is simply amazing, I can't believe that TV decided to discontinue this little gem, it is better than the newer version in every category including eye comfort, the overall shape along with fit and finish is one of the best from TV. Something in the 30 to 38 mm range with a 65 to 70 degree AFOV. Such eyepieces are able to offer great performance, i.e., satisfactory degrees of deviations, to about a 50.degree field. I am looking for as much as best I can buy. So speaking of the Barlow as if it modifies the FL of the eyepiece, while technically not correct, does provide an easier model to understand the net effect. Astrophotography with Nikon D3200: Can It Be Better? Find many great new & used options and get the best deals for Meade 32mm 2" 5-element Super Plossl Wide Field Eyepiece at the best online prices at eBay! And of course, NEVER look through a telescope pointed at the sun that does not have a safe solar filter covering the front. By having a range of magnifications, you can optimize the image, which means you need more eyepieces. 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. So you would have to test the set to see the actual result. The views through it are very impressive, and it always amazes me when I get that one out. If you would prefer to buy him $60 eyepieces or even $30 eyepieces because he is only 7 and he can upgrade later, that is also OK. Not all are Plossls, but excellent eps at f/10. What is a Plssl eyepiece? | BBC Sky at Night Magazine It includes two high-magnification Plossl eyepieces and five lower magnification zoom oculars with an adjustable focus in the kit. Outstanding job Jack. When you are shopping, if you need long eye relief, make sure you are selecting the correct ones. As a result, this can cause aberrations in the image as you move from the center of the view toward the edges. Or, you can have three properly sized eyepieces and use a Barlow lens to achieve three more magnifications, which is usually a less expensive way to go. No other type can compare with it when it comes to that quality. As Im sure you know, a Barlow actually narrows the cone of light that enters the eyepiece, hence it affects the apparent focal length and thus the f/ratio of the telescope objective. Where a difference can show up is that a lower number focal ratio scope will make it harder for an eyepiece to provide a uniformly good, in-focus image all the way across the field of view due to the steeper angle that the light arrives at the edges of the eyepiece with a low focal ratio scope, as compared to a high focal ratio scope. Meade telescope maksutov eyepiece ETX-105EC Super Plossl 6.4mm 1.25" w capsule. It also produces an erect image, meaning you see what youre viewing rather than seeing everything upside down or sideways as some types do. is pretty forgiving of eyepiece faults and a wide variety of eyepiece designs will work just fine in it. These eyepieces have about 35 to 50 degrees apparent fields of view and reasonable eye relief, though quite short for high magnifications. SVBONY Eyepiece Review: Take Your Stargazing Up a Notch I have personally tested a few Super Plossl and compared them to their regular counterparts by the same brand. Perhaps another review would be helpful. It doesnt matter what type of telescope you have, as long as your scope takes these standard sizes. I also really liked my E-Lux 32mm, a Kellner. Let us know in the comments if there is anything else you want to ask or share your thoughts on this post, always looking forward to feedback from others who will benefit from it as well! This is your Lexus, Acura, and Infinity types that offer more features, better build, and a bit more polish. One of the main drawbacks of this eyepiece, though, is the eye relief. If you just want a quick answer, skip to the conclusion at the end of the article. Lets take a look. Telescopes Cost: Acceptable, Good, and Really Good Telescopes, Used Telescopes Buying Guide The Complete Guide, Different Types of Asteroids (C, S, and M) The Definitive Guide, Top 10 Night Sky Objects for Astronomy Beginners, Asteroid Mining Know Everything About It, German Equatorial Mounts (GEMs) Overview and Working. And remember, when all else fails, read the instructions. But I think you will feel more confident about your purchases and be less likely to be disappointed if you read through the guide. No price limit. A 2 barrel on the eyepiece will allow the manufacturer to create an eyepiece that provides a wider field of view. 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? To get the best performance, you have to be willing to pay the price. You will get varying opinions on this but I would not worry too much about this. What's the difference between two Plssl eyepieces? Good quality plossl eyepieces - Discussions - Stargazers Lounge Both solutions offer somewhat similar mag-fov-er-price. Now we just divide it up and fill in some sample focal lengths. It allows each eyepiece to provide two magnifications. If well made, Plossls are bright, with good contrast, and a flat field, and excellent sharpness. You can do the calculation which will show that the 70 will have a significantly wider field of view as compared to the 52. Lower power almost always looks better than higher power. Because of this setup, you might also hear a Plossl eyepiece referred to as a symmetrical eyepiece. I often recommend a 32 mm Plossl as a good low power wide view eyepiece for scopes with a 1.25 focuser. They have good center sharpness but exhibit some field curvature and astigmatism. We will talk more about the field of view later, but note that if you can use 2 eyepieces, you will typically only have one or two for very low power wide field views. Plus the FOV expands as you zoom to the higher powers. Stargazinghelp.com is a knowledge hub for professional and amateur astronomy and astrophotography enthusiasts. Now we have a maximum established. Well, I'll just say it. These low-quality Plossls lack an internally blackened lens barrel with thread baffles and blackened lens edges and sophisticated anti-reflection multi-coatings, all of which are a necessity to produce an excellent image. Customer reviews Average Rating (16 Reviews): Write a Review and share your opinions! They can also be found as Orion Expanse sporting a blue line rather than gold. For example, if you put a 30 mm eyepiece in a 3X Barlow, it will triple the magnification you get from that eyepiece. How Good Are Super Plossl Eyepieces for Astronomy? Compared with a zoomable telescope eyepiece, they are pretty much the same in terms of the quality of the image. They can be recognized by a thin gold line just below the eye cup. Kellners are the other popular design for amateur stargazing, go ahead and check out that article if you want to dive deeper into the subject. Omni 32mm Eyepiece - 1.25" Learn More. They work great every day and get you where you want to go, but dont have what the higher priced models have. Do I need an adapter if my scope has a Plossl lens? Its made up of four lenses in two groups. The difference isnt that severe, and I often track more often than is strictly necessary to keep the object centered anyway. 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. Again, it only costs $30 to $40 to find out, so the education is not that expensive. The original Meade 5-piece Super Plossl hasnt been in production for decades and at this point is more of a collectors item than a high-performance eyepiece. You can build a full set of these with good results, but be aware of eye relief, especially if you wear glasses. Celestron 2026 Erecting Prism Barlow Lens Set is another great choice for those looking to get a variety of magnifications. However, the BH Zoom is by far my most used eyepiece. Fully coated with magnesium fluoride on every air-to-glass surface for excellent light transmission and high contrast views. If you go this route, you can always add single focal length eyepieces along the way to serve specialized purposes. In my opinion, you do not. ORION SIRIUS PLOSSL 10mm telescope eyepiece 1.25" - $17.01. Are there any good low-cost 2 EPS out there? SVBONY Direct . The TFOV will be as wide as your 40mm Plssl, but with greater magnification and a slightly darker sky background. Again, does it create a more immersive viewing experience? Lets illustrate with an example using a 1200 mm FL telescope. A four-element eyepiece was made by putting together two achromatic doublets with different focal lengths. Lets just say that once you get below F5, it is really hard for the eyepiece to deliver a clean image to the edge. From planetary viewing to deep sky watching. My 20, 26, and 32mm Plossls will probably stay around. The 4000 SWA's were way overpriced for their performance IMHO. Think of these as your Ford, Chevy, and Toyota of eyepieces. Higher priced eyepieces usually include more elements in the optical path that are there to help reduce or eliminate aberrations that can be seen around the edges of lower cost eyepieces. Newer multi-coatings are better, I suppose, but newer does not always mean better in the ocular game. 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 have the 38 mm and recommend it often. I like my 38/70. The combination of high-quality optics and accessible prices have made them the favorite design for amateur astronomers and even professionals. Hayppy that now I have more facts to put in my decision. As long as you take good care of them, Plossls can last you a lifetime, and you will be able to use them with your next telescope if you upgrade at some point. Plssl eyepieces are good all-around performers, producing sharp images at the center of the field, but they have only four lens elements. The way a Plossl eyepiece works is by using the convex lens and concave lenses to create an image that has both total magnification of what youre viewing, as well as erect images. I think you will love it! There is the 56mm Meade Plossl which magically turns my short FL refractors into their own finder scopes. But for AP you should really start your planning with the mount. 6.5-ish mm (100x & 200x) Depending on how fussy you are about having a completely clean image across the visual field, if you have a lower focal ratio scope you will want to look for eyepieces with a reputation for being better corrected in low focal ratio scopes. Perhaps you have read about planetary eyepieces, DSO eyepieces, and other types of specific eyepieces. a breath of fresh air! Yes, Plossl eyepieces are some of the most popular with amateurs and professionals alike. 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. Astro Essentials Super Plossl Eyepiece | First Light Optics If that is the case, it will give me another reasonably good, inexpensive zoom to recommend to beginners. Omni 15mm Eyepiece - 1.25" Learn More. Many Kellners are made with field stops opened up to 50 degrees, in which case it can truly compare to a Plossl in any telescope with a focal ratio of f/6 or slower. At one time Plssls were premium eyepieces. I have owned wider eyepieces, but ultimately I just prefer the Plssls (must be a mental defect). . So your 600 mm example (f/6) becomes, in effect, an 1800 mm focal length, f/18 but it does not change the focal length of the eyepiece. They are also good for those who have astigmatism because they are designed to be more forgiving with eye placement. As new anti-reflection coatings were developed, it became possible to actually make use of complex lens arrangements (not just in relatively simple 4-element systems but also in convoluted, extreme wide-field eyepieces such as the TeleVue Nagler). If you had to choose 1 low-power 2 EP for chasing deep sky objects (again, at 600mm f7.5), what size piece would you go for? I have seen wider-field Plossls. A common problem are eyepiece kits, which are big boxes that some telescope suppliers will sell you with half a dozen eyepieces, most of which include annoyingly short focal length Plossl eyepieces. Omni 56mm Eyepiece - 2" Learn More. These are the workhorse eyepieces of today. Then you can judge for yourself if it is worth it. You really understood the material. . Take the AFOV of the eyepiece (provided by the mfg) in your case 82 degrees Learn more about our story and the team behind the scene. Not everything in the sky benefits from high magnification. I beleive this is the same as they ones you asked about. ES 82 degree series plus 1 meade uwa @20 mm with 1800 focal length optical tube lowest mag 51 x / highest mag 300. This is important to keep in mind because it means brands have to try really hard to one-up each other because the competition in a niche hobby such as astronomy can be fierce. They are all made by the same OEM manufacturer. Which is Stronger? But dont fear that you will waste your investment as eyepieces are standard sizes. Also worth mentioning i wear glasses which I will wear while observing. Modified vs Unmodified DSLR Astrophotography: The Ultimate Showdown! The Big Bang Optics is compensated for referring traffic and business to these companies. 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. You might be able to find a Kellner, or perhaps a high-quality Orthoscopic. Edge sharpness is just satisfactory, nothing to boast about, as is the apparent field of view. I've got a one-off plossl like that in my kit that I'll probably never sell, (aside from my 5 element ones) and it's one that is rarely seen. Plossl eyepieces are often included in better telescope packages as the starter eyepieces. These lenses are connected together. Using your example: We will use a 100 mm telescope with a 600 mm focal length and Another way to look at it is that a 30 mm eyepiece in a 3X Barlow works like a 10 mm eyepiece.. If we look at the range I provided above, we see that we could replace several eyepieces with one zoom. 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? By default, expect a 40-degree field of view in a Kellner and a 50-52 degree field of view in a Plossl. I agree with your comment on zooms for kids. The Plossl design has become the mainstay of the modern ocular business and probably represents the best value in terms of performance and price, especially in medium and long focal lengths. This can be especially helpful in telescopes of focal ratios below F8. TeleVue Naglers, Plossl and Powermates | Astromart The telescope comes with a 2x Barlow so I was thinking of getting one of the zooms you recommended. And you don't even have to get the full set if you don't want to. 32mm (20x & 40x). These "other" ones I speak of, aren't technically that, they are a 5 element eyepiece, of a different design. 1200 mm FL scope / 10 mm FL eyepiece = 120X, 40 degree AFOV / 120X = .33 degrees (less than 1 full moon wide), 60 degree AFOV / 120X = .5 degree FOV (about one full moon with no space around it), 82 degree AFOV / 120X = .68 degree FOV (about one full moon with a star field around it to frame it). If your focuser/diagonal will accept 2 eyepieces, then I will suggest you get one or two 2 eyepieces for your low power wide view eyepieces. A Barlow lens can save you money and add flexibility. The difference in TFOV will be significant at this focal length. These tend to run toward the more expensive price range. EP-mm = magnification = afov Gold Line eyepieces also offer better eye relief than Plossl eyepieces, especially at the shorter focal lengths. document.getElementById( "ak_js_1" ).setAttribute( "value", ( new Date() ).getTime() ); Since 2011, we've published astronomy related content and reviews to help guide the community better. Kellner vs Plossl - Comparison table. Then there is the rule of thumb to avoid duplicating focal lengths when acquiring eyepieces. I purchased the Celestron Starsense 102mm refractor, focal length 660mm, stated highest useful magnification is 240x; it should arrive in about 2 weeks. I have used both Kellner & Plossl eyepieces and a few others, and I can tell you that they all are quite different from each other in terms of the quality of the image that they produce. As we go up in price range, we gain capabilities that may not be immediately obvious. I would suggest you also get a 2 low power wide view.
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