You have to decide how fussy you are about the edges and what your budget can tolerate. did i pass? But with 2 eyepieces and a Barlow, you have the full effective range of your telescope. You have a very wide choice of brands and styles to choose from. 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. So perhaps you do your line up like this. I cannot thank you enough! short answer: yes. Higher than 3X is usually reserved for astrophotography. This is where the cheap eyepiece will frequently fail to deliver a good image, around the edges. But you may only be able to achieve that rarely. https://telescopicwatch.com/celestron-starsense-explorer-dx-102-130-reviewed/, If I was to upgrade these lenses, I was planning on working toward something like this: Save my name, email, and website in this browser for the next time I comment. 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. That is a really interesting picture. Optics manufacturers began selling and popularizing Plossl eyepieces, albeit with a generally simplified design where each achromatic doublet had the same focal length. If you are just testing the waters or on a tight budget, get the Celestron, which is still pretty good. It will also make your life easier if youre out observing on windy days that would otherwise blow off the front cover of your telescope. Plossl vs Super Plossl Eyepieces. Which One is Better? - Little Astronomy Oh the pain of uh having access to really cool eyepieces.). I tested out my BH zoom yesterday for the first time and it is a great eyepiece so thank you for the recommendation! Disclosure - If you buy something via our link, we may earn a commission with no additional expense to you. It uses two symmetrical pairs of glass elements (one convex and one concave) to pass the light. In the 1990s Meade instruments came up with a new design for the Meade 4000 line similar to Plossl that added a fifth glass element on top of the two pairs (4 total). I have had a good experience with the SVBony brand and the Agena Astro brand. New and used eyepieces + 2 diagonals - Updated 100-300X, 2X Barlow. 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. I think you will love it! I would recommend the Baader Hyperion Zoom for any telescope. 50 150X, no Barlow 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. I really like the simplicity and compactness of these simpler designs (ie: Plssls, Orthos, Kellners, etc). If your telescopes focal length is different, just change the focal length in the formula. Type above and press Enter to search. Number of Lenses. 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. Visual astronomy is all about aperture, the more the better. The stock 9 and 15mm Omnis were very good. 2x Barlow Gosky 1.25inch Plossl Telescope Eyepiece - Amazon.com Videos for related products. In your case, I would do this for the 30 and the 20. Kellner vs Plossl eyepieces for dobsonians? : telescopes - reddit So, I think it worth your while to try the Plssls. Omni 15mm Eyepiece - 1.25" Learn More. The price ranges we show here are the typical prices. That is a wonderful expression. A super Plossl eyepiece is a top-performing eyepiece that can be used for a variety of tasks, from viewing objects in the distance to looking at microscopic things. And I am a visually observing focused person. So, if your scope is F6 or lower, you may want to consider some of the higher priced, better corrected eyepieces if you want the best image to the edge of the field. In this case, I am going to define this by the focuser and eyepiece size. In general terms, the higher the AFOV number, the more the eyepiece will cost. 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. Though not the Meade. 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 . Good quality. They all work, but as you go up in price, you gain features or performance or both. At that price point, it couldnt compete with other 5-element devices like Erfle and Nagler eyepieces that had better performance. Kellner vs Plossl Eyepiece - What is the Difference? Pentax 10.5mm Eye Piece Excellent Condition (#314374986239) r***d (1910 . Comparing Orion Telescope & Binoculars options, it appears that a Kellner can be found for almost half the price of a Plossl of the same focal length, although there are also equally cheap Plossls available from various sellers on Amazon that are highly comparable. I really enjoy usingPlssls. I do not miss beating my eyelashes against a 9.7mm Meade Plossl that I used to own. 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. Nothing will stop you from trying to go higher, but in all likelihood, the image will be poor and not worth the cost of eyepieces to achieve it. My love affair with space began in a field in India at the age of 7, when I looked up at the Milky Way for the first time. On the inside, they are exactly the same design. It allows each eyepiece to provide two magnifications. For what it's worth: I believe the Omni 1.25 inch 2x Barlow is one of the Shorty Barlows manufactured by GSO. 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. But what are the other differences? 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. Compared with a zoomable telescope eyepiece, they are pretty much the same in terms of the quality of the image. Those that still come with Huygens and Ramsdens are generally cheap and low quality, since practically the only reason to use those designs in modern times is that they are extremely cheap to manufacture. Very worth it for me, as I like to use bino-viewers. 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. They also improve a bit when it comes to eye relief. In my opinion, there are no wrong exit pupils. They are most useful in medium and longer focal lengths for terrestrial, planetary, and lunar viewing. 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 . The Plossl eyepiece is a type of optical system that was invented by Ernst Abbe. These are the workhorse eyepieces of today. The Plossl optical design is very good for long and medium focal length eyepieces, delivering a sharp, flat field and an apochromatic image. no caps come in bolt case. The Hexagon Zoom Eyepiece is made from durable plastic material that resists scratching and it has an eye relief distance of 15mm. I recently purchased the SVBony 7-21 zoom from Amazon. Being a total novice, I love the StarSense app and technology. If you read the article you know how to calculate the magnification and field of view. What is a Plossl Eyepiece and What's So Great About Them? In the world of eyepieces, when you want the very best, turn to Tele Vue, but be prepared to pay a truly premium price. Also, atmospheric conditions can limit how much magnification you can use on a given night. 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. That can only be shown through actual testing. They are 82-degree AFOV eyepieces. Customer reviews Average Rating (16 Reviews): Write a Review and share your opinions! The computerized pad and motor work on AA batteries which can last you a few hours. These and the essentially identical AT Paradigm are universally praised as good quality eyepieces with a wider 60-degree apparent field of view. You can use the same eyepiece on planets and deep-sky objects (DSOs). 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. 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. The magnification and field of view is the same as a 10 mm eyepiece (AFoV being unchanged) in a 600 mm telescope but the eye relief is that of a 30 mm eyepiece. Explore Scientific recently extended this offering by adding a series of 82 degree eyepieces labeled LER, or Long Eye Relief. While many people will stay with and add Plossls to their eyepiece set, I would recommend not going below 10 mm focal length as the eye relief gets quite short. The Hyperions work well in SCTs and you can't beat that large eyelens and eye relief ,JMO. Good quality plossl eyepieces - Discussions - Stargazers Lounge Lets give an example. 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. There are inexpensive adapters that will let you use standard 1.25 eyepieces in a .965 focuser/diagonal. Or we say that F10 would be easier or less demanding on the eyepiece than the F5. https://www.amazon.com/s?k=Orion+Q70&ref=nb_sb_noss_2, Understanding Telescope Eyepieces- There are recommendations, based on budget, 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. A Plossl eyepiece lens provides more eye relief than anything else out there! 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 the zoom provides every magnification in that range without having to change eyepieces. . A standard Plossl eyepiece is typically between 20mm to 25mm but can range anywhere from 15mm up to about 40mm in diameter. A Televue Plssl may be better than a generic one, but the difference is probably not worth the additional cost. I think some of these kits even include 4mm eyepieces, and thats ridiculous! To determine a magnification range, we will start with the aperture of the telescope, the size of the front lens, or the mirror in the back. So I sincerely hope that this article helps you understand the similarities and differences between Plossl and Kellner eyepieces so that you can an informed decision and choose the best one for yourself. 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 loved my Baader Mark-IV 8mm-24mm Zoom+Barlow combo in my 8" EdgeHD. What apparent field of view and eye relief do I want? I have four telescopes, but I use the same eyepieces in all of them. Eyepiece Field of View Simulator astronomy.tools Field of View Simulator Change Telescope Reset Change Target Add Equipment 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. Excellent, thank you for the breakdown, very much appreciated. This eyepiece was even better at correcting false color fringing, but because of internal reflections, the glare was even worse. Good value. There is always more to learn but it helps if you go in with a good base understanding, and that was my goal. Many thanks. Inexpensive Plossls that are manufactured using low-quality lenses are susceptible to internal reflections when viewing bright objects at high magnification. 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. But some people demand the very best, and it is available, at a 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. 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. AP is all about the mount and accurate tracking. They have a 60deg apparent field, long eye relief, adjustable eye shield and extremely well corrected. In essence the design differences between Kellner and Plossl comes down to the number of lenses within the eyepiece barrel. I wants to install one in house(fixed place) another I need movable. 1. Best Telescope Eyepieces 2022 (TOP 7 Reviews) - Buyer's Guide When I was getting my start in the hobby, I bought an ultra-cheap ($15?) The difference isnt that severe, and I often track more often than is strictly necessary to keep the object centered anyway. Centuries of improvements led to achromatic refractors, where the primary lens is made up of two lenses of different types of glass, which reduces false color fringing and allows the telescope to be made considerably more compact. I need some eyepieces with long FL for low magnifications. Even if we were next-door neighbors this would take weeks of discussion and planning. If you are going to wear your glasses when you observe, you want at least 18 mm of eye relief and 20 mm is better. Nice, thank you again for the additional inputs. Omni Eyepieces | Celestron They have decent eye relief and little curvature of field. Besides fov, How would you compare the optical quality of the Celestron to the Baader? With your glasses on, you simply cant get your eye close enough to an eyepiece that only has 10 mm of eye relief. Divide that by the magnification of that eyepiece in that scope. But the one I am recommending here is the Tele Vue Nagler series. I have the 38 mm and recommend it often. I must say Im quite confused about eyepieces. 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. 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. Again, for no other reason than to compare it to the 17mm Hyperion and draw your own conclusions about Plssls. Would a higher magnification eyepiece help do you think or am I already pushing my telescope (XT8) to highest sensible magnification I can with BH zoom on setting 8mm and 2x Barlow? Despite this, I also have some Plossls which are indispensable. Plssl eyepieces are good all-around performers, producing sharp images at the center of the field, but they have only four lens elements. 1:10 . How Good Are Super Plossl Eyepieces for Astronomy? 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. Astro Essentials Super Plossl Eyepiece | First Light Optics I once had to use a 6mm Plossl to attempt to perform a star-test collimation for a telescope at the observatory. Orion Sirius Plossl 1.25" Telescope Eyepieces In comparison, Aspherical lenses generally have no color distortion but might not work out well if the telescope user needs really high magnification. I also really liked my E-Lux 32mm, a Kellner. These eyepieces have about 35 to 50 degrees apparent fields of view and reasonable eye relief, though quite short for high magnifications. Despite this, I also have some Plossls which are indispensable. Even big telescopes are subject to limitations imposed by the atmosphere. What Is a Plossl Eyepiece - Planet Seekers (Compare, for instance, 20mm of each type, or 10mm of each type.) An exit pupil larger than 6 mm may start to show a shadow of the secondary mirror. Lets just say that once you get below F5, it is really hard for the eyepiece to deliver a clean image to the edge. My Barlow is a 2X with a removeable Barlow element that can be screwed right onto an eyepiece giving a 1.5X effect. It appears to be a custom-made 90 degree binocular built from two 90 degree diagonals and binocular-size objectives attached in place of the usual OTA. The design uses a planoconvex, two cemented-element eye lens and a large convex field lens. Not everything in the sky benefits from high magnification. The eye relief is the distance between your eyes and the eyepiece where you are able to view the whole image comfortably. Again thank you very much for all the information in the page, excellent notes. At one time Plssls were premium eyepieces. I also have a 25mm plossl and am happy with that. They are all made by the same OEM manufacturer. That is why I suggest, if you can use 2 eyepieces, you will want one or two low power wide view 2 eyepieces. In stargazing, eyepieces are as important as telescopes are. I took notes and now can shop with confidence I have seen some gatekeeping in this hobby about Kellners, and Im not sure I understand it. Good evening everybody. They deliver sharp images in almost all telescopes. Do you need to have the best to enjoy astronomy? I havent been into the hobby for long but my experience is in line with whats been said. Understanding and using a Barlow Lens A 10mm or shorter Plssl is probably not worth it unless you want to see how you personally cope with short eye relief. If that is the case, it will give me another reasonably good, inexpensive zoom to recommend to beginners. Other than the limited AFOV, which you are apparently fine with, and limited eye relief in the shorter focal lengths there is certainly no reason not to choose Plssls. Zoom Plossl eyepieces and filters - TheSkySearchers.com Ive read, and re-read, and re-re-read this page. There is no problem using a Celestron eyepiece in a Meade telescope, for example. The telescope comes with a 2x Barlow so I was thinking of getting one of the zooms you recommended. Eye relief is the distance from the eye lens to your eyeball, and the higher the better (within reason). You will get varying opinions on this but I would not worry too much about this. 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. If you don't like the reflections, there really aren't many other budget options at its focal length beside a Plossl which will be super uncomfortable to use, or spending over $100 for something like a Meade UWA. 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. You can email me also. A four-element eyepiece was made by putting together two achromatic doublets with different focal lengths. 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? It comes with 1.25 Plossls 25mm (26x) and 10mm (66x) eyepieces. Combining a cheap eyepiece with a cheap barlow isn't a elegant solution. Am I correct? Skywatcher SP Plossl lenses - Discussions - Stargazers Lounge That's hard to beat IMO. 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. All focal lengths offer 50 field-of-view except the 40mm which offers 42 Hi - I bought these from another AM'er 1 year or so back, thinking I will get into visual astro, But never found the inclination, So here it is for sale 9mm Nagler type 6 mint with box and caps,16mm Nagler type 5,optics are exc. How you divide up your magnification range is up to you. I guess my curiosity is mostly about the diagonal. 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. You can find the eyepieces I use and recommend in this article. With a 130mm-F5 I would use a Plossl 32mm for its low-mag-wide-view. We have a range of 32 mm to 3 mm. Note that the full moon appears to be approximately .5 degrees across, so use that as a mental reference when looking at the numbers. Many compare these favorably to eyepieces that are much higher priced. I have an SCT and my eyepiece case only hasPlssls (and one Ortho) in it. If you plan to go longer than that you can get an AC adapter or a power tank. I expect such eyepieces are available but I have never seen or used one. I possess an embarrassing array of fine eyepieces with names like Ethos and Nagler and Delos. The longer FL Plossls (>15mm) have some distinct advantages over more complex designs without the major disadvantage of Plossls which is short ER. A wide-angle view of 66 degrees makes it perfect for viewing large objects and even entire constellations while still being able to focus on smaller details with ease. To estimate the highest practical magnification for your telescope, you take the aperture in millimeters, mm, and multiply it by two. LCAS - The Good Old Plossl Eyepiece The Wiki article(s) were very good if anyone else is confused. 5 Best Telescope Eyepieces in 2023 [+Beginner's Guide] Best eyepieces for telescopes 2023 | Space https://telescopicwatch.com/celestron-8-24mm-zoom-eyepiece-review/. This will give you a lower power and a medium to high power eyepiece, depending on the focal length of your scope. As we go up in price range, we gain capabilities that may not be immediately obvious. i did buy an astro-tech 3.2 paradigm ed from a cloudynights.com forum member. Plossl eyepieces have 4 lenses that are paired in two doublets. Sooooo helpful! Then set your maximum based on your aperture and split it up. A rubber safety cap protects the lens when not in use while also providing additional grip on this 35 mm Plossl eyepiece. This was very useful, I got a meade infinity 90mm ( after read the review here -. FOR SALE! No price limit? Super Plossl eyepieces are generally a little smaller than this at around 16-20 mm in size, which is why theyre sometimes referred to as wide-angle or low power plossls. Free shipping for many products! I had one and sold it. I have seen wider-field Plossls. While eyepieces with relatively complex, proprietary, or bespoke designs are becoming more commonly available in the beginner price bracket, there is often good reason to choose a much simpler design. You noted eye relief is important for those wearing glasses. It's no surprise that the eyepieces in our Sirius Plossl line are our best-selling telescope eyepieces. Omni 56mm Eyepiece - 2" Learn More. . You can build a full set of these with good results, but be aware of eye relief, especially if you wear glasses. 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 . How do you focus - I would have expected helical focusers in the eyepiece holders but don't see any? I hope I can say that someday. Here we focus on becoming a knowledge hub for astronomy and astrophotography enthusiasts. The longer FL Plossls (>15mm) have some distinct advantages over more complex designs without the major disadvantage of Plossls which is short ER. These "other" ones I speak of, aren't technically that, they are a 5 element eyepiece, of a different design.
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