are plossl eyepieces good

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. So, even if you have a Maksutov-Cassegrain scope, you should get a good experience from this eyepiece. There are so many others at comparable or higher prices, many of which are quite good and some rather poor. Plossl eyepieces have a wider field of view that can go from 50 to 56 degrees. They also improve a bit when it comes to eye relief. This is a good thing, because normally the shorter the focal length of the eyepiece, the less eye relief you have. That is why I suggest, if you can use 2 eyepieces, you will want one or two low power wide view 2 eyepieces. But I think you will feel more confident about your purchases and be less likely to be disappointed if you read through the guide. The 66-degree AFOV of the Gold Line series provides a 32% wider field than Plossl eyepieces. Think of these as your Ford, Chevy, and Toyota of eyepieces. 4mm Eyepiece vs 20mm Eyepiece. 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. Come join the newest, most engaging and inclusive astronomy forum geared for beginners and advanced telescope users, astrophotography devotees, plus check out our "Astro" goods vendors. Omni 12mm Eyepiece - 1.25" Learn More. 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. Know what diameter eyepieces your scope takes. I have Celestron and the Baader Hyperion. Despite this, I also have some Plossls which are indispensable. I once had to use a 6mm Plossl to attempt to perform a star-test collimation for a telescope at the observatory. We may earn commissions by recommending products on this website. In 1860, Georg Simon Plossl invented the Plossl eyepiece. No other type can compare with it when it comes to that quality. What follows are specific eyepieces that I have tried, own, or have read so many good reports about that I feel very comfortable recommending them. That is a wonderful expression. I have CPC 925 and I currently own Hyperion 10mm, Hyperion 17mm and Celestron plossl 40mm. Which is Stronger? My Barlow is a 2X with a removeable Barlow element that can be screwed right onto an eyepiece giving a 1.5X effect. I dont know if they make anything like this anymore, but as a kid, I had plastic slides with images on them (the Milky Way, Horse Head Nebula, etc.) This might contain more of what you need. With a 8" dobsonian, a 6mm is very versatile. Question: would it perform well with 1.5/2x and 3x Barlows? Can you help me. The Big Bang Optics is compensated for referring traffic and business to these companies. For one thing, a wider field of view is almost always more pleasant. If you want to observe the fine details of a specimen, Plossl eyepiece has a higher magnification than an ocular with lower lenses. I loved my Baader Mark-IV 8mm-24mm Zoom+Barlow combo in my 8" EdgeHD. If I had to give them all up and keep only one eyepiece, It would be the BH Zoom. Non-eyeglass wearers can usually tolerate Plossls as short as about 10-12mm before their eyelashes start brushing the ocular lens. For the price, I think the eyepiece is still a good pick. If your telescopes focal length is different, just change the focal length in the formula. This 10 mm Orion Sirius Plossl Eyepiece is a great, moderately high power ocular for observing small planetary nebulas and globular star clusters, as well as for planetary probing when seeing conditions don't permit higher magnifications. You can enjoy wide-angle views without giving up any of the clarity or sharpness when using Plossl eyepiece while Kellner will give you more magnified views but at less than half the brightness levels in comparison to other lens designs on this list if light pollution was involved. She has been looking at the sky for years and hopes to introduce more people to the wonderful hobby that is astronomy. I have seen elsewhere discussions about the exit pupil of eyepieces. No, adapters are not needed but they may come in handy when you want to change the focal length or add other lenses such as filters or Barlow lenses. These lenses are connected together. (Svbonys Plossls, for example, are optically identical to Orions Sirius Plossls). Kellner vs Plossl - Comparison table. I possess an embarrassing array of fine eyepieces with names like Ethos and Nagler and Delos. Or, if you are buying from an online like Amazon, then look at the eyepieces I recommend and see if any suit your needs. Finally, the worldwide pandemic has led to shortages and price jumps on many items. To get the best performance, you have to be willing to pay the price. I would recommend the Baader Hyperion Zoom for any telescope. This was very useful, I got a meade infinity 90mm ( after read the review here -. I have a variety of eyepieces, including Explore Scientific and Meade 82 degree series so I have choices. dnrmilspec is right. They are not that expensive I would pay about $100 for both eye pieces. https://www.amazon.com/Orion-8879-1-25-Inch-Enhanced-Telescope/dp/B000BMPBLK/ref=sr_1_8?crid=3KKUJRXYYN7DI&dchild=1&keywords=telescope+diagonal+1.25&qid=1610887695&sprefix=telescope+diagonal%2Caps%2C512&sr=8-8, Excellent article and very good recommendations. . These will eventually be used in an 8in dob whenever it arrives. Or is this overkill and am I better off saving money and going forward something like the Celestron Zoom? This will give you a lower power and a medium to high power eyepiece, depending on the focal length of your scope. With a refractor, SCT or MCT, it is usually better to get a correct image diagonal than a correcting eyepiece. 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. Once I knew how much I liked the zoom I upgraded to the Baader Hyperion Zoom. Plossl eyepieces are typically used for observing and viewing things at long distances, but they can also be useful when using a telescope to provide both magnifying power and erecting the images. The three-lens eyepiece that came out of this was much better at controlling false color fringing and other distortions, even in telescopes with short focal lengths. I hope I can say that someday. Between Kellners and Plossls, this means a 32mm Plossl, which maximizes the field of view in the 1.25 barrel diameter format, will show more stars than either a 32mm Kellner with the same magnification but a smaller true field of view, or a 40mm Kellner (or 40mm 1.25 Plossl, which has a 40 degree apparent field of view) with a lower magnification and the same true field of view. 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.. Choosing the most appropriate can completely change your experience in using telescopes. Pay attention to the eye relief, especially if you will be observing with glasses. In 1849, Carl Kellner invented the Kellner eyepiece, which is essentially a Ramsden eyepiece where one lens has been replaced with an achromatic doublet made of two different types of glass. Since it's such a popular eyepiece and allows for quality, planet-viewing, that makes it a great instrument for attracting newcomers to the hobby, especially children. At one time Plssls were premium eyepieces. I have used these in my F6 and F5 Dobs and find them a good value for the price. I took notes and now can shop with confidence Omni 9mm Eyepiece - 1.25" Learn More. 70 mm scope will have a max of 140X for planning purposes. The Plossl has good color correction plus is free of the ghost images that plague the Kellner. This is why we recommend you try to locate the object first at low power, then use a higher magnification if you likethe wider field of view on the sky provides more context in terms of asterisms and reference stars and makes it more likely that youll catch the object you are looking for. If you are very demanding and must have the very best, this is where you want to be. It also was considerably more expensive. Your email address will not be published. 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. These are effectively simple designs like Plossls, Kellners, Konigs, and RKEs, with long focal lengths, that have a lens included to increase their focal length. Our previous exchange convinced me to start out with an 80mm refractor. The atmosphere is typically the limiting factor as we get to higher magnifications. Plossl eyepieces have 4 lenses that are paired in two doublets. Hi Ed, As we go along, I will refer back to these, so dont worry if you cant answer the questions or understand the formulas now. By having a range of magnifications, you can optimize the image, which means you need more eyepieces. The field of view of a p Plossl eyepiece is typically 60 to 120 degrees. Of course, the entire eyepiece must be manufactured and finished correctly to realize the design's full potential. Orion Sirius Plossl 1.25" eyepieces are ideal for all types of telescopes: reflector, refractor, and catadioptrics such as Maksutov-Cassegrains. Lets look at the minimum. I possess an embarrassing array of fine eyepieces with names like Ethos and Nagler and Delos. My own lineup (with a C8) is 32mm Plossl, 18.2mm DeLite, and 10.5mm Pentax (the last one not chosen to match, but rather because it belonged to a deceased friend). When you add eyepieces to your collection, you will want to consider what field of view you want and how much you are willing to pay for it. In simple terms, high focal ratio scopes, say those over F6, tend to be less demanding on eyepieces than those below F6. We have compared Plossl against Kellner eyepieces in a previous article. There are certainly much better options out there but at a significant cost. This is the link to the one I plan to buy as I know some others come with add ons: https://www.rothervalleyoptics.co.uk/baader-hyperion-mark-iv-8-24mm-universal-zoom-eyepiece.html, Thats great you had an XT8i that makes me feel confident I got a good telescope . 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. A very good quality eyepiece for a reasonable sum. Over $250, I will label premium eyepieces. If you stumble the first few uses, dont be discouraged. 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. 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). Thinking in a super ploss 32mm and maybe something between 9mm and 15mm . 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. However, some eyepieces have an eye relief as short as 5 mm. 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. I continue to be very pleased with the ES82 eyepieces. For it's cost, a 32mm Plssl eyepiece is hard to beat. Lets take a look. This is just a planning target. Second? Most telescopes come with one or two eyepieces, which gives you one or two magnification options. i still use the binos. But the longer FL units are certainly useful. 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. One of the main drawbacks of this eyepiece, though, is the eye relief. I am very near-sighted, barely see the big E on the vision chart without glasses. https://telescopicwatch.com/?s=barlow, Best of luck with your new telescope. Note that many cheap eyepieces promise a wide AFOV but deliver a view with a lot of distortion or aberration as you move away from the center of the field of view. However, I have eyepieces with much smaller exit pupils and they work fine. These are the best in optical performance and build quality. I think I will go for the BHZ because, as you say, I will be able to use it now and into the future. 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. I expect such eyepieces are available but I have never seen or used one. For our experience level, would you recommend changing anything right now? that I could slide into my telescope and look at. Hi, I have recently bought a Orion XT8 and am trying to work out which eyepieces to add to what is provided with the scope. You can do the calculation which will show that the 70 will have a significantly wider field of view as compared to the 52. FOR SALE! But your point is well taken. They have good center sharpness but exhibit some field curvature and astigmatism. 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. It's no surprise that the eyepieces in our Sirius Plossl line are our best-selling telescope eyepieces. A zoom eyepiece works like the zoom lens on a camera. A Plossl eyepiece has a field of view thats very wide, so if youre looking at the full moon or some other object in space with it, chances are youll see the entire thing. Comparing to Plossl eyepieces, Super Plossl is somewhat better for astronomy. A 20mm Plssl is probably worth it, if for no other reason than to compare the views it gives to the 21mm Hyperion you have. When discussing eyepieces, you will hear people comment on how well the eyepiece is corrected. . Sorry but I am not offering a configuration and pricing service. 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. Plossls provide very good eye relief for eyeglass wearers in focal lengths of about 25mm and longer. None of my fancy EPs have enough contrast for this application. On the inside, they are exactly the same design. While I also have the Baader Hyperion Zoom, mentioned later, I continue to make use of the Celestron, especially in my smaller scopes. This wider field of view will make it easier to find your targets, allow you to view larger deep-sky objects, and provide a more immersive experience for everything that you view. Most telescopes come with one or two eyepieces. This will give you a maximum target for planning purposes. 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 . ORION SIRIUS PLOSSL 10mm telescope eyepiece 1.25" - $17.01. Dont worry about the math, as its simple stuff you can do with any calculator, on paper, or perhaps in your head. How does that field of view impact the viewing experience? . You can buy eyepieces specifically focused on a particular scope or you can buy eyepieces that you expect to use with this and all future scopes. PayPal, cash, bank transfer are all acceptable. These tend to run toward the more expensive price range. This design features 4 lenses that are paired in two close-set doublets for the eye lens and the field lens. Inexpensive Plossls that are manufactured using low-quality lenses are susceptible to internal reflections when viewing bright objects at high magnification. I am going to use 6. Orion Sirius Plossl 10mm telescope eyepiece 1.25" in very good to excellent 185794462395 Orion SkyQuest XT8 Intelliscope Review The difference in TFOV will be significant at this focal length. 6.5-ish mm (100x & 200x) Correct image diagonals are easier for beginners and they are great for using the scope during the day, but experience people dont use them for astronomy. These sport a 60-degree apparent field of view, about a 20% wider apparent field of view than Plossl eyepieces. I also have a 25mm plossl and am happy with that. In addition, the eyepiece would be a Huygens or Ramsden design, where two lenses made of the same type of glass could be combined to yield minimal false color fringing, as long as the focal length of the telescope remained fairly long. Many compare these favorably to eyepieces that are much higher priced. 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. 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. You have to decide how fussy you are about the edges and what your budget can tolerate. I also struggled to see features on both (gas bands on Jupiter and clear rings on saturn). Here's the short answer - Plossl eyepieces are generally better than Kellner eyepieces, but they also tend to be more expensive. is pretty forgiving of eyepiece faults and a wide variety of eyepiece designs will work just fine in it. Kellner eyepieces work perfectly with small and medium-sized telescopes. The Big Bang Optics also participates in affiliate programs with Clickbank and other sites. I guess my curiosity is mostly about the diagonal. 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! Elena is a Canadian journalist and researcher. But in this scope, the 32 mm doesnt work well. At 32mm, a Plssl will give you as wide a field of view as any 1.25mm eyepiece can. However, the BH Zoom is by far my most used eyepiece. Tip Its almost always cheaper to buy directly from Agena Astro. A typical zoom eyepiece has a focal length range of 8 mm to 24 mm. So its best for use during duller times when there isnt much brightness visible. Orion Q70 38 mm works well. No results, please adjust your filters. The Plossl was also called a Kellner Type III in some earlier references; in the 1950's, Edmund Scientific sold a "Kellner" eyepiece made from war surplus lenses, but it actually consisted of two achromats in the classic Plossl configuration. The Astrovid 40X60mm Zoom Telescope Camera Lens Kit is a great choice for those looking to get a variety of lenses, at different magnifications. 130 mm scope will have a max of 260X for planning purposes. So you ended up with: (often referred to as Pseudo Masuyama). . Lower power almost always looks better than higher power. Interesting points Philip. If there is a local club, I would suggest you visit and consider joining. I already got the 10mm super wide because of the added eye relief but at 15mm both have the same eye relief. However the package includes a 1.25 to 2 adapter so if you have a 2 focuser you can treat this like a 2 eyepiece leaving the adapter normally included with the scope for use with other 1.25 eyepieces. Do you need a 10 mm planetary and a 10 mm DSO eyepiece? Plssl's were top of the line at one time, and are still being sold today, so that says something too. I agree with your comment on zooms for kids. If youre still wondering between a Kellner vs Plossl, my advice to you would be invest a little extra cash and go for a good quality Plossl. Poorly chosen eyepiece might give you poor experience and sometimes even make stargazing difficult. I hear that, sometimes you find one that is sweeter than others. All registered. Be aware of the focal ratio of your scope. A Barlow lens can save you money and add flexibility. I often recommend it. Are Plossl eyepieces any good? ES 82 degree series plus 1 meade uwa @20 mm with 1800 focal length optical tube lowest mag 51 x / highest mag 300. For astronomical observations, such as viewing craters on the moons surface from Earth, high-magnification models are preferred because they offer more detail. I just ordered Hyperion 13mm and 21mm but I really like how sharp and crisp view is in plossl 40mm. It is all about your budget, your goals, and your objectives, as outlined in the article. If that surface is wobbly the scope will be almost useless. At this point, a Plossl and a Kellner are so close in price and performance that you may as well get the Plossl. No price limit? You can buy a range of these from Modern Astronomy. still, i somehow managed to avoid the eyepiece pitfalls when buying used off ebay. Compared with a zoomable telescope eyepiece, they are pretty much the same in terms of the quality of the image. Good evening everybody. When a beginner is choosing eyepieces on a budget, there are a number of possible designs they may choose between. To achieve six magnifications, you can have six eyepieces. As the clear cut worlds best eyepiece manufacturer, their name should at least be mentioned in an article like this. As we go up in price range, we gain capabilities that may not be immediately obvious. The Plossl optical design is very good for long and medium focal length eyepieces, delivering a sharp, flat field and an apochromatic image. Plossl eyepieces are great. Perhaps you should seek out help from your local astronomy club. Brilliant article and I thank you for it, I was literally really confused prior to reading it. Their eye relief is limited to about 70-80% of their focal length. We will use 10 mm as the eyepiece focal length, but we will look at three different 10 mm eyepieces, each with a different apparent field of view, AFOV. Again thank you very much for all the information in the page, excellent notes. Im just starting out with astronomy and this really helped my understanding. I need some eyepieces with long FL for low magnifications. Some optics brands have taken the next step and launched some eyepieces they have labeled as Super Plossl. As you learn more about astronomy and you gain more experience with time, you may want to move to Plossls or even higher-quality eyepieces. 1.25" Power mates with T ring adapter. Now we can establish a target magnification range. Kellners are often sold with cheaper, even more entry-level telescopes than Plossls. 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. Required fields are marked *. 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. The reason a plano-convex lens is good for using with a telescope is that it provides for both magnifying and erecting the images. These are considered to be the least expensive eyepieces for serious astronomy and are offered in focal lengths from about 6mm to 40mm.

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