are plossl eyepieces goodare plossl eyepieces good

Also worth mentioning i wear glasses which I will wear while observing. The ES is actually slightly cheaper than the Orion but my understanding from your reviews and replies is that ES might actually be the better eyepiece have I got that right? In simple terms, high focal ratio scopes, say those over F6, tend to be less demanding on eyepieces than those below F6. Aspheric and Plossl Plossl are both lens designs that can be used in most telescopes. You could say Super Plossls are not much more than a marketing tactic these days. They deliver sharp images in almost all telescopes. That said, I should also tell you that not all Plossls are created equal. The stock 9 and 15mm Omnis were very good. I continue to be very pleased with the ES82 eyepieces. Edge sharpness is just satisfactory, nothing to boast about, as is the apparent field of view. Plossls cost a bit more than the Kellners as Plossls are expensive to manufacture because they require good optical glass and precisely matched concave and convex doublet surfaces to prevent internal reflections. 2x Barlow . In this article, we will only focus on the differences between Plossl and Kellner eyepieces. 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. As the clear cut worlds best eyepiece manufacturer, their name should at least be mentioned in an article like this. But in this scope, the 32 mm doesnt work well. Choosing the most appropriate can completely change your experience in using telescopes. And you don't even have to get the full set if you don't want to. Do you think the Baader Hyperion Zoom would work OK with the Skywatcher 150p? I have a custom-built 32mm Plossl that has been opened up as wide as possible to 60 or 70 degrees, for use as a 2 eyepiece, although in my 10 Dobsonian at f/5 the edge distortions prevent it from seeing much use. My most used eyepiece is an 8-24 mm zoom. If you are just testing the waters or on a tight budget, get the Celestron, which is still pretty good. However, there can be a problem bringing the eyepiece into focus. Hi Ed, This is where the cheap eyepiece will frequently fail to deliver a good image, around the edges. Orion Sirius Plossl eyepieces are ideal for any type of telescope; refractor, reflector, or catadioptic. My Baader Hyperion Zoom is my most used and favorite eyepiece. I did sell them all when I adopted Dioptrx, and the Naglers are amazing! I hear that, sometimes you find one that is sweeter than others. But some people demand the very best, and it is available, at a price. While it covers the same range as the Celestron zoom, it offers better optics, better mechanical operation, and a wider field of view. The 26 and 32 are usually the first ones I reach for. I see that there are some optical limits to how wide an FOV a 1.25 EP can manage at bigger (like 32mm) focal lengths. I have CPC 925 and I currently own Hyperion 10mm, Hyperion 17mm and Celestron plossl 40mm. Plossls are available from many suppliers in a wide range of focal lengths in 1.25 and 2 sizes. However, because they have more glass elements than other designs, like Kellners, their manufacturing becomes extremely important to get high-quality optics. It includes two high-magnification Plossl eyepieces and five lower magnification zoom oculars with an adjustable focus in the kit. The views through it are very impressive, and it always amazes me when I get that one out. I really enjoy usingPlssls. They are also good for those who have astigmatism because they are designed to be more forgiving with eye placement. Kellner eyepieces have 3 lenses cemented together and have a 35-50 degree field of view. We will use a 100 mm telescope with a 600 mm focal length that only takes 1.25 eyepieces. Perhaps you should seek out help from your local astronomy club. Just give yourself some time to learn the app and to understand the scope. Ever since, I have been attempting to cram in every fact about the Universe, I can find into my head. You are looking through a LOT of atmosphere which distorts the image. It is all about your budget, your goals, and your objectives, as outlined in the article. 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! Required fields are marked *. A Televue Plssl may be better than a generic one, but the difference is probably not worth the additional cost. 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. NEW. To achieve these benefits, they may use special glass and more costly manufacturing. 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. Focal length telescope / focal length eyepiece = magnification or power. These come in focal lengths from 2.3 mm to 25 mm. Plossls are the clear winner here in most cases, unless you have one of the wider-field 50-degree Kellners. Gosky Plossl 40 mm Telescope Eyepiece - 1.25inch This is probably the worst eyepiece I can recommend. The field of view of a p Plossl eyepiece is typically 60 to 120 degrees. Most of Celestrons entry-level telescopes are sold with Kellners (and other cheap but reasonable-quality designs like RKEs or Konigs), whereas their more expensive SCTs tend to come with a single 25mm Plossl. 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. These are highly sought after ep's, and hold their value well. These "other" ones I speak of, aren't technically that, they are a 5 element eyepiece, of a different design. Some will offer longer eye relief which can be important to eyeglass wearers. Of course, the entire eyepiece must be manufactured and finished correctly to realize the design's full potential. Plossl against Kellner eyepieces in a previous article, 5 Budget Telescopes That Are Sneakily Powerful. Now we just divide it up and fill in some sample focal lengths. Since there are so many different types of eyepieces available on the market, choosing the right one for your situation can prove to be a harrowing task. If you go this route, you can always add single focal length eyepieces along the way to serve specialized purposes. Lenses are fully multi-coated for excellent light transmission and reduced internal reflections. There are some very good choices in this range. Recall that your lowestpower eyepiece's exit pupil should not exceed 6mm. 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. a Celestron 8-24 Zoom with a 2x Barlow Some brands will add better lens coating, darker edges, or a higher quality case to their Super Plossl products, but strictly for performance, there isnt a difference between the two. https://telescopicwatch.com/best-barlow-lens-and-how-to/, Celestron 8-24 Zoom Review https://www.amazon.com/Orion-8829-Wide-Field-Telescope-Eyepiece/dp/B000M89H7C/ref=sr_1_2?dchild=1&keywords=Orion+Q70&qid=1606584502&sr=8-2, The Explore Scientific 68 degree series would be better but at a much higher price. i dont have 1 of everything, and i bought the best i could afford on a low budget; meade and orion. They can also be found as Orion Expanse sporting a blue line rather than gold. The TFOV will be as wide as your 40mm Plssl, but with greater magnification and a slightly darker sky background. 1. You can do that by using this long focal length eyepiece. 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. Their eye relief is limited to about 70-80% of their focal length. Also, atmospheric conditions can limit how much magnification you can use on a given night. 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. Omni 6mm Eyepiece - 1.25" Learn More. 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. I often recommend it. You can use the same eyepiece on planets and deep-sky objects (DSOs). Of course, for the cost of the two Plossls, you could justify having them as spares or outreach EPs. 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. Typically, these will be 25 mm and 10 mm or something close to that. 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. I would wait till you get the scope and use the included eyepieces. They work great every day and get you where you want to go, but dont have what the higher priced models have. I took notes and now can shop with confidence Type above and press Enter to search. Wide view and well-corrected view, even in F5 scopes. Looking forward to first use. If you feel the need to buy something now, consider this Orion diagonal. If you do upgrade, youll probably want to go for a different eyepiece design than a Plosslsomething with a sharper image or a wider field of view or a longer eye relief (or all three.). I must say Im quite confused about eyepieces. 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. They also offer more eye relief than Plossls at the shorter focal lengths. This design features 4 lenses that are paired in two close-set doublets for the eye lens and the field lens. I use some plssl eyepieces, since I still have quite a few in my kit, and yes, the others are correct. the shorter the focal length eyepiece = the shorter the eye relief. 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. 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. They are most useful in medium and longer focal lengths for terrestrial, planetary, and lunar viewing. Some reviews also suggest replacing the diagonal. It costs three to four times as much as the Celestron Zoom, but if you have the budget, this is the one to get. I just ordered Hyperion 13mm and 21mm but I really like how sharp and crisp view is in plossl 40mm. The Plossl's are very easy to modify, allowing me to use the bino-viewer on, all my refracting telescopes without having to cut down the tube length, p.s. Do you need to have the best to enjoy astronomy? Press Esc to cancel. When you use a Barlow lens with an eyepiece, you get the magnification, but the eye relief is not affected. Magnification or power = focal length telescope / focal length eyepiece, Focal ratio = focal length telescope / aperture telescope, maximum practical aperture = aperture X 2, Edges of the optics are blackened for increased contrast, which prevents internal reflections, Anti-reflection, fully multi-coated optics provide enhanced light transmission for bright and clear images. Rating (max 5): The magnification range that is appropriate to your scope. They all work, but as you go up in price, you gain features or performance or both. 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. SVBONY Telescope Eyepiece Set Telescope Accessory Kit with 2x Barlow Lens 4 Element Plossl Design 6.3mm 32mm 40mm for Astronomical Telescopes. 6.5-ish mm (100x & 200x) Edited April 23, 2010 by russ teh_orph Members 28 198 Author 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. The computerized pad and motor work on AA batteries which can last you a few hours. Ideally, you want a minimum of three eyepieces for (1) low power (2) peak visual acuity and (3) high-power viewing. No price limit? This will give you a maximum target for planning purposes. It costs a lot to get that last 10% of performance. I would suggest you also get a 2 low power wide view. This type of design provides for both total magnifications as well as an erect image with little distortion. Another useful aspect of a wider field of view is that, assuming the entire eyepiece is sharp enough to show good images right to the edge, you dont have to nudge the telescope to track the rotation of the Earth as often with a Plossl (50 degrees) compared to a Kellner (40 degrees). Focus on the magnifications rather than the mm of the eyepieces. 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). With a refractor, SCT or MCT, it is usually better to get a correct image diagonal than a correcting eyepiece. Another really helpful article, Ed. If you just want a quick answer, skip to the conclusion at the end of the article. If you have a longer focal length telescope, your shortest focal length eyepiece will be a higher number than what I have shown here. Plossls tend to come with large, ground-standing Dobsonians, whereas youre more likely to find a Kellner sold with a tabletop Dobsonian. I decided to jump in with both feet and get an Orion ED80 (600mm f7.5 with a 2 focuser, So that I can move into astrophotography down the road. The view being presented to your eye in a low power eyepiece minimizes everything from optical aberrations in the telescope, to distortions from thermals or atmospheric conditions. Plossl eyepieces have wider fields of view than Kellners. Plossl eyepieces are very good and fairly inexpensive, typically between $25 and $50 each. As you saw in the article, they eyepieces that would be best for you, or your child, is based on your budget and what your goals are. This determines how much light the telescope will gather. At 32mm, a Plssl will give you as wide a field of view as any 1.25mm eyepiece can. the reality is that today's eyepieces are all quite good, particulalarly in an f/10 telescope. Besides fov, How would you compare the optical quality of the Celestron to the Baader? These are two very important considerations when you are looking for eyepieces. 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! Very often, those eyepieces will be in the outdated 0.965 format rather than the modern 1.25 or 2 diameter barrel format. I would like to know what is best for a 7 year old that would be getting his first telescope. The 4000 SWA's were way overpriced for their performance IMHO. I have to say that your questions are answered in the article. PayPal, cash, bank transfer are all acceptable. A four-element eyepiece was made by putting together two achromatic doublets with different focal lengths. 6mm Kellner eyepiece that I enjoyed a lot. Unless you are a professional astronomer or extremely demanding, you can select your eyepieces based on magnification, the apparent field of view, eye relief, and price. I dont think so. 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. Even if the scope comes with the more acceptable Kelner or . Save my name, email, and website in this browser for the next time I comment. It was named after Peter Barlow who invented it in the 1800s, so it is usually capitalized. I possess an embarrassing array of fine eyepieces with names like Ethos and Nagler and Delos. Most modern telescopes use a focuser, or diagonal, that accepts 1.25 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. It comes with 1.25 Plossls 25mm (26x) and 10mm (66x) eyepieces. Read our full affiliate disclosure here. Not really. Note that we also gained a 16 mm magnification at no additional cost. That is up to you and your budget. If you stumble the first few uses, dont be discouraged. Eye Relief: This refers to how close your eye has to be to the lens in order to see the full field of view. These are considered to be the least expensive eyepieces for serious astronomy and are offered in focal lengths from about 6mm to 40mm. One more thing if you havent purchased a telescope yet, I would recommend a tabletop version, since they are easier for kids to move than the fiddley ones with spindly legs and complicated dials. Do you think it would be sensible for me to look at getting a higher magnification specific eyepiece? This type of design also helps provide for eye relief; its a better experience if your eyes. This saves money and helps you shop in an organized manner. And the zoom provides every magnification in that range without having to change eyepieces. For super Plossl eyepiece, the field of view is typically 40 to 60 degrees. You are talking about the technical details of how a Barlow works, and I agree. The Baader offers wider fov, but at quite the price premium. 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. This was very useful, I got a meade infinity 90mm ( after read the review here -. Jupiter and Saturn are low in the sky now. 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. My Meade 4000 56 and 60 degree Meade Plossls are pretty sharp to my eyes and do pretty well for me. You see the object in a wider expanse of space with more stars. I recently purchased the SVBony 7-21 zoom from Amazon. Kellner and Plossl- both are two different types of eyepieces for telescopes. There are certainly much better options out there but at a significant cost. If you plan to go longer than that you can get an AC adapter or a power tank. But for AP you should really start your planning with the mount. Buy Astromania 1.25" 4mm Plossl Telescope Eyepiece - 4-Element Plossl Design . Or is this overkill and am I better off saving money and going forward something like the Celestron Zoom? Have Any Astronauts Been Lost in Space Forever. https://telescopicwatch.com/celestron-8-24mm-zoom-eyepiece-review/. Now we have a maximum established. None of my fancy EPs have enough contrast for this application. Does this sound like something you would recommend based on the telescope I have? This will give you a lower power and a medium to high power eyepiece, depending on the focal length of your scope. After these, we have mostly proprietary designs from various eyepiece companies. I found an ES 70 degree AFOV 35mm eyepiece and am wondering whether I should get this or the Orion 38 70. 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. When you are shopping, if you need long eye relief, make sure you are selecting the correct ones. Orion Sirius Plossl 10mm telescope eyepiece 1.25" in very good to excellent 185794462395 Meade telescope maksutov eyepiece ETX-105EC Super Plossl 6.4mm 1.25" w capsule. Plossl eyepieces have a wider field of view that can go from 50 to 56 degrees. My other eyepieces, ES and Meade 82 degree, stayed in the eyepiece case most of the time. A 15mm Plssl might be worth it, if you dont wear glasses. Whether it is cars or telescope eyepieces, there are inexpensive ones, upgraded models, and very expensive ones. Be sure to read the following as you consider your eyepiece purchases. You use the 8-24 zoom for the midrange. short answer: yes. Omni 9mm Eyepiece - 1.25" Learn More. As we go along, I will refer back to these, so dont worry if you cant answer the questions or understand the formulas now. Plossl eyepieces have 4 lenses that are paired in two doublets. Which is Stronger? For shorter focal lengths, the StarGuider BST series eyepieces have greater eye-relief, so are better suited. In order to help you narrow down your choices, weve created a short guide that can help you figure out what the best viable option is. Most people will be fairly comfortable with eye relief of 12 mm or higher. So you would have to test the set to see the actual result. So, basically a Plossl eyepiece is a type of eyepiece that enables the viewer to see a wider field of view than would normally be the case, but at the cost of him/her having to physically put his eye very close to the lens of the eyepiece. The combination of high-quality optics and accessible prices have made them the favorite design for amateur astronomers and even professionals. You could base this on 3, 4, 5, 6 or more focal lengths/magnifications. There is one aspect in which a Kellner can actually outperform a Plossl: eye relief. You can still get eyepieces, but there are few choices. Plossls and Kellners, like other simple eyepiece designs, have moderate fields of view and tend to have short eye relief as you scale them down to shorter focal lengths. Offering a wide 43 apparent field of view, this 40mm Orion Sirius Plossl Telescope Eyepiece provides extremely sharp images of impressively high contrast. Non-eyeglass wearers can usually tolerate Plossls as short as about 10-12mm before their eyelashes start brushing the ocular lens. In essence the design differences between Kellner and Plossl comes down to the number of lenses within the eyepiece barrel. Orion 12 mm Sirius Super Wide Angle Correct Image Eyepiece has a rubber eyecup that holds in light, which enables you to enjoy this powerful telescope eyepiece at night without glare or reflections from any external sources. 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. Sometimes you want to see a wider field of view to locate an astronomical object like a nebula by using nearby stars. Thanks all. In your case, I would do this for the 30 and the 20. Also, children do not often have highly developed motor skillsso I would avoid the frustration of switching out eyepieces, and consider a zoom lens. A 32mm Plssl is worth it. It is as simple as that. Now looking for a couple of decent eyepieces. 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. They have a 60deg apparent field, long eye relief, adjustable eye shield and extremely well corrected. Gold Line eyepieces also offer better eye relief than Plossl eyepieces, especially at the shorter focal lengths. No price limit. Astrophotography with Nikon D3200: Can It Be Better? But the difference in price to get to the next level is high, and the performance difference may be small. 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. 50 150X, no Barlow 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. A Plossl eyepiece has a lens thats plano-convex, which means it is flat on one side and convex on the other. Other brands have joined and have used the Super Plossl label, but they all keep the original 4-piece design. Combining a cheap eyepiece with a cheap barlow isn't a elegant solution. A 2 barrel on the eyepiece will allow the manufacturer to create an eyepiece that provides a wider field of view. This Super Plossl design was better than regular Plossl eyepieces, but not by much. The basic design hasnt changed much, but the real costs of manufacturing have dropped. The TFOV of the Hyperion will be greater than the TFOV of the Plssl, but the magnification will be about the same. Again, does it create a more immersive viewing experience? A Barlow lens is an optical device that goes between the eyepiece and the focuser. Good 32mm Plssls run around $30-$40. I am going to use 6. I am very near-sighted, barely see the big E on the vision chart without glasses. 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. It comes with two Barlow lenses, one Newtonian eyepiece, and three Plossl eyepieces in the set. It's one of the best choices you have when it comes to budget stargazing. It also gives the widest possible exit pupil in my dob and SCT, very handy when using nebula filters. Worth is a subjective evaluation, so here is my subjective input: 1. ES 82 degree series plus 1 meade uwa @20 mm with 1800 focal length optical tube lowest mag 51 x / highest mag 300. Now you can get good eyepieces for under or around $50. They have a 50-56 degrees field of view, better eye relief, and cost more than Kellners. What diameter eyepieces will my telescope accept? This will become more apparent the wider the AFOV is of the eyepiece, in my experience. Imagine you are looking at the moon with each of these eyepieces and consider what you would see. dnrmilspec is right. Yes, the wider field of view of a Plossl is very helpful, but 40 degrees of Kellners isnt a soda straw (unless you are used to looking through very wide field eyepiece. Thanks so much. I wants to install one in house(fixed place) another I need movable. They are all 4-element Plossl eyepieces, and most have a 52-degree field of view that is common to the Plossl design. > Click here to jump to the Best Eyepieces section. The Hexagon Zoom Eyepiece is made from durable plastic material that resists scratching and it has an eye relief distance of 15mm. Thanks for a very helpful guide. Nice, thank you again for the additional inputs. I have just one Meade product currently and that is a series 4000 1.25 inch UHC type filter which I use for outreach. I think you will love it! For what it's worth: I believe the Omni 1.25 inch 2x Barlow is one of the Shorty Barlows manufactured by GSO. Outstanding job Jack. We enjoy binoculars for the moon, but having never looked through another telescope, my kids and I do not know what internal reflection, ghosting, vignettes, or diffraction spikes look like!

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