Wide view and well-corrected view, even in F5 scopes. Again, it only costs $30 to $40 to find out, so the education is not that expensive. https://www.amazon.com/s?k=Orion+Q70&ref=nb_sb_noss_2, Understanding Telescope Eyepieces- There are recommendations, based on budget, Modified vs Unmodified DSLR Astrophotography: The Ultimate Showdown! If you do not have your Hyperions yet I recommend you wait until you have these and try them out before you buy the Plossls. 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. But with 2 eyepieces and a Barlow, you have the full effective range of your telescope. How do you focus - I would have expected helical focusers in the eyepiece holders but don't see any? Soft rubber eye guard that's custom fitted . Thanks so much. Planetary eyepieces: Ploessl or Orthoscopic and which brand Looking from different sorts I found the Baader Aspheric 31mm and 36mm.these two eyepieces allow me to switch between 2" and 1.25"just by changing the barrel. In comparison, Aspherical lenses generally have no color distortion but might not work out well if the telescope user needs really high magnification. 5-Minute Read, How To Increase The Magnification Of A Telescope; 5-Minute Read. They are a good brand with high-quality eyepieces, you just dont need to spend the extra money for almost no gain in performance. 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 . Ah I see what you are saying, I had wondered whether this might have had an impact as Ive seen it mentioned before but dont fully understand it so will do some research, thank you . Prices can run from $20 to $200 so the field is pretty broad. Focus on the magnifications rather than the mm of the eyepieces. These will normally be higher priced and may be outside the price range we show here. Kellner and Plossl- both are two different types of eyepieces for telescopes. But what are the other differences? This design features 4 lenses that are paired in two close-set doublets for the eye lens and the field lens. Not perfect to the edge but better than the Bresser, in my opinion. You can do the calculation which will show that the 70 will have a significantly wider field of view as compared to the 52. Simple Plosels work well and unless you have money burning a hole in your pocket, I would start with simple affordable eyepieces. 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. Buy Astromania 1.25" 4mm Plossl Telescope Eyepiece - 4-Element Plossl Design . A 32mm Plssl is worth it. These eyepieces have about 35 to 50 degrees apparent fields of view and reasonable eye relief, though quite short for high magnifications. This type of design provides for both total magnifications as well as an erect image with little distortion. This is a good thing, because normally the shorter the focal length of the eyepiece, the less eye relief you have. Meade telescope maksutov eyepiece ETX-105EC Super Plossl 6.4mm 1.25" w capsule. 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. Do you need to have the best to enjoy astronomy? They have a 60deg apparent field, long eye relief, adjustable eye shield and extremely well corrected. These come in focal lengths from 2.3 mm to 25 mm. I tested out my BH zoom yesterday for the first time and it is a great eyepiece so thank you for the recommendation! Videos for related products. I do not miss beating my eyelashes against a 9.7mm Meade Plossl that I used to own. Kellner vs Plossl eyepieces for dobsonians? : telescopes - reddit The Big Bang Optics was started because of our love for astronomy and to help others like us find the best telescope and accessories. The difference isnt that severe, and I often track more often than is strictly necessary to keep the object centered anyway. Tele Vue has eyepieces that approach $1000. In the beginning, you are not going to know what the atmospheric conditions might be in your area. 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. Comparing to Plossl, the Expanse eyepiece is a lot more expensive. These companies rebranded them under their own names. However, if you want to optimize your viewing experience, youll need to invest in a better-quality eyepiece. 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. This eyepiece was even better at correcting false color fringing, but because of internal reflections, the glare was even worse. As we go along, I will refer back to these, so dont worry if you cant answer the questions or understand the formulas now. If you plan to go longer than that you can get an AC adapter or a power tank. The field of view of a p Plossl eyepiece is typically 60 to 120 degrees. I was just wondering if plossls are still worth it or should get a better eyepiece in a 30mm range. Orion Sirius Plossl 1.25" Telescope Eyepieces Omni 32mm Eyepiece - 1.25" Learn More. Many brands of eyepieces are available, including SVBony UltraWide, Astromania UltraWide Angle, Agena Astro StarGuider Enhanced UltraWide Angle and others. SVBONY Telescope Eyepiece Set Telescope Accessory Kit with 2x Barlow Lens 4 Element Plossl Design 6.3mm 32mm 40mm for Astronomical Telescopes. Yes, Plossl eyepieces are some of the most popular with amateurs and professionals alike. These eyepiecesproduce a 'standard apparent feld of view' of between 50 and 56 with most set at around 52. Understanding and using a Barlow Lens Gosky 1.25inch Plossl Telescope Eyepiece - Amazon.com A typical zoom eyepiece has a focal length range of 8 mm to 24 mm. In some cases, the eyepieces are waterproof to protect them from internal contamination caused by heavy dew conditions. For one thing, a wider field of view is almost always more pleasant. If you do choose to go with a Plossl eyepiece, I highly recommend spending some extra cash to get yourself a decent good quality branded Plossl eyepiece rather than going for a cheap, generic eyepiece which is a Plossl only for the namesake. You could say Super Plossls are not much more than a marketing tactic these days. Because the eyepiece was still similar enough to a Plossl and still kept the symmetrical design, they called it Super Plossl. Well-made lenses are expensive though, so in general the more lenses, the higher the price of the eyepiece. Orion SkyQuest XT8 Intelliscope Review Kellner eyepieces work perfectly with small and medium-sized telescopes. I am very near-sighted, barely see the big E on the vision chart without glasses. Plossl eyepieces are very good and fairly inexpensive, typically between $25 and $50 each. Some people have more than 6 and some have as few as 3. They have good center sharpness but exhibit some field curvature and astigmatism. Comparing to Plossl eyepieces, Super Plossl is somewhat better for astronomy. There is a little bit more to it than that and there are other design . OK that makes sense, many thanks. I would recommend the Orion Q70 series over that. For planetary viewing, comfort is essential in helping to increase viewing time . The sharp/crisp view you get from your 40mm Plossl comes down to the relatively low magnification it provides. 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. 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. This doublet design has an apparent field of view of 50-degrees or wider but can suffer from short eye relief making them difficult to use for some . You have to decide how fussy you are about the edges and what your budget can tolerate. Looking forward to first use. Plossl eyepiece is one of the reasonable options when it comes to telescope eyepieces for stargazing or astronomy. These tend to run toward the more expensive price range. 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. You can read a thorough review of Goldline eyepieces here. When you are shopping, if you need long eye relief, make sure you are selecting the correct ones. Or, if you are buying from an online like Amazon, then look at the eyepieces I recommend and see if any suit your needs. The downside to this type of lens is that they can cause chromatic aberration which creates colored spots around bright objects such as planets or stars due to the different wavelengths not going through equally. The BH zoom is optically a 1.25 eyepiece. Kellner eyepieces use three glass elements in two groups to minimize color fringing. By default, expect a 40-degree field of view in a Kellner and a 50-52 degree field of view in a Plossl. Also, atmospheric conditions can limit how much magnification you can use on a given night. I found an ES 70 degree AFOV 35mm eyepiece and am wondering whether I should get this or the Orion 38 70. Free shipping for many products! https://telescopicwatch.com/orion-skyquest-xt8-intelliscope-review/. When selecting the best eyepiece for you, consider: Eyepieces are standardized so whatever investment you make today, the eyepieces will continue to serve you in any future scopes you may own. 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. 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. For the $66/$42 of these kits, you can get one or two decent eyepieces (depending on where you buy). To say it a different way, in general, an F5 scope will place more demands on the eyepiece around the edge of the field of view than an F10 scope. 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. Once I knew how much I liked the zoom I upgraded to the Baader Hyperion Zoom. After these, we have mostly proprietary designs from various eyepiece companies. You will see these under many brands, including Orion, Celestron, GSO, and others. The one exception I would keep in mind would be when working with Newtonian reflector telescopes below F5. Eye relief is the distance from the eye lens to your eyeball, and the higher the better (within reason). Thanks for your comment. the reality is that today's eyepieces are all quite good, particulalarly in an f/10 telescope. 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. Meade 32mm 2" 5-element Super Plossl Wide Field Eyepiece What diameter eyepieces will my telescope accept? Outstanding job Jack. Such eyepieces are able to offer great performance, i.e., satisfactory degrees of deviations, to about a 50.degree field. However, you may see them at higher prices for the short term. That is up to you and your budget. Lets illustrate with an example using a 1200 mm FL telescope. Zoom Plossl eyepieces and filters - TheSkySearchers.com 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. 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. 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. I often recommend it. did i pass? 100-300X, 2X Barlow. They are not that expensive I would pay about $100 for both eye pieces. The Hyperions work well in SCTs and you can't beat that large eyelens and eye relief ,JMO. 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. 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. All of the Omni eyepieces have a 1.25" barrel size with the exception of the super low power 56 mm, which has a barrel size of 2". They work great every day and get you where you want to go, but dont have what the higher priced models have. Like going from a 32 TV to a 65? From planetary viewing to deep sky watching. You might be able to find a Kellner, or perhaps a high-quality Orthoscopic. Tip Its almost always cheaper to buy directly from Agena Astro. The Plossl optical design is very good for long and medium focal length eyepieces, delivering a sharp, flat field and an apochromatic image. To get the best performance, you have to be willing to pay the price. Plossl eyepieces have a wider field of view that can go from 50 to 56 degrees. If you look up transparency and seeing in the context of telescopes you can learn more about how atmospheric conditions will affect what magnifications you will choose on any given night. Plossls tend to come with large, ground-standing Dobsonians, whereas youre more likely to find a Kellner sold with a tabletop Dobsonian. With an f/10 telescope, Plossls are as sharp as any other kind of eyepiece of the same focal length. Telescope Eyepieces Guide - High Point Scientific (Svbonys Plossls, for example, are optically identical to Orions Sirius Plossls). These are exceptional eyepieces, and only available on the used market nowadays. Field of view, is about finding, framing, drift time, and context. I just ordered Hyperion 13mm and 21mm but I really like how sharp and crisp view is in plossl 40mm. Ideally, you want a minimum of three eyepieces for (1) low power (2) peak visual acuity and (3) high-power viewing. 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. This saves money and helps you shop in an organized manner. that I could slide into my telescope and look at. I have seen elsewhere discussions about the exit pupil of eyepieces. Eyepieces are a religion. It had one of the best fields, edge to edge, in my SCT that I've ever seen. 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. This makes them a bit more complex and expensive than other designs, but also gives them a wider field of view, reasonable eye relief, and reduces optic aberrations. These are highly sought after ep's, and hold their value well. 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. They deliver sharp images in almost all telescopes. If you just want a quick answer, skip to the conclusion at the end of the article. These are often compared to the higher priced offerings. Now, for my one or two low power eyepieces, I also like to know the field of view provided by that eyepiece. 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. 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. In general terms, the higher the AFOV number, the more the eyepiece will cost. When you use a Barlow lens with an eyepiece, you get the magnification, but the eye relief is not affected. There is always more to learn but it helps if you go in with a good base understanding, and that was my goal. Plossls are available from many suppliers in a wide range of focal lengths in 1.25 and 2 sizes. For what it is worth, a slow scope like your CPC9.25 (f/10?) As the clear cut worlds best eyepiece manufacturer, their name should at least be mentioned in an article like this. They have decent eye relief and little curvature of field. All the rest will likely be 1.25. And new proprietary designs come out from time to time. The "sharpness" you are seeing may well be better explained by the focal length of the ep than the quality of Plossls in general. a Celestron 8-24 Zoom with a 2x Barlow But those EPs mentioned were all great too! The eye relief is the distance between your eyes and the eyepiece where you are able to view the whole image comfortably. Many thanks, Sophie. The focal length range for 1.25 Plossls is about 6mm to 45mm. 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. For that purpose it is probably easier to find one to borrow. 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. Any 1.25 eyepiece will work with the BH Zoom 2 adapter. Higher values are slower and lower values are fasterthis is a holdover from camera lens terminology and has to do with exposure times.). Generally, Plssl eyepieces are best suited to Newtonian and fast telescopes. In the case of the Celestron, you get all the focal lengths from 24 to 8mm in one eyepiece that costs $100. Le migliori offerte per Celestron 1,25 pollici Omni Plossl telescopio astronomico britannico 32 mm J8R6 sono su eBay Confronta prezzi e caratteristiche di prodotti nuovi e usati Molti articoli con consegna gratis! And the zoom provides every magnification in that range without having to change eyepieces. In simple terms, high focal ratio scopes, say those over F6, tend to be less demanding on eyepieces than those below F6. 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. 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. As we continue, what would you recommend adding first? Over time, you will likely spend more on eyepieces than on the telescope. . You alluded to them, but you never mentioned Tele Vue. Kellners can be as little as half the price of a Plossl in the same focal length, but they are generally very comparable, especially in recent years as telescope prices have fluctuated in response to changing supply chains and demand. Their eye relief is limited to about 70-80% of their focal length. 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. 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? 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.