are plossl eyepieces good

Save my name, email, and website in this browser for the next time I comment. If you were considering a Meade Super Plossl, in that case just get the regular one also by Meade. I foolishly destroyed it while experimenting with solar projection, because I hadnt realized the metal-and-glass construction was aided by a plastic retaining ring on the field stop, and I hadnt realized you do not need to change the eyepiece focal length when doing solar projection. A couple of them felt fancier, but the jump in performance was either insignificant or non-existent. Another really helpful article, Ed. Even though there are more sophisticated types of EPs, Plossls hit the right spot between high-quality optics and price. 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. Dont worry about the math, as its simple stuff you can do with any calculator, on paper, or perhaps in your head. Do I need an adapter if my scope has a Plossl lens? The more light that is gathered, the more magnification that can be applied to the image, up to the limits that are imposed by the atmosphere. The Plossl has good color correction plus is free of the ghost images that plague the Kellner. Excellent, thank you for the breakdown, very much appreciated. The ocular for your highest visual acuity - for viewing deep-sky objects and the like - should have an exit pupil around . Despite this, I also have some Plossls which are indispensable. Soft rubber eye guard that's custom fitted . 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. Read the full Earning Disclosure here. The design uses a planoconvex, two cemented-element eye lens and a large convex field lens. You can do that by using this long focal length eyepiece. Recall that your lowestpower eyepiece's exit pupil should not exceed 6mm. Orion Q70 38 mm works well. How important a consideration is this when deciding on an eyepiece? Yes, Plossl eyepieces are some of the most popular with amateurs and professionals alike. Perhaps you have read about planetary eyepieces, DSO eyepieces, and other types of specific eyepieces. That can only be shown through actual testing. 1200 mm FL scope / 10 mm FL eyepiece = 120X, 40 degree AFOV / 120X = .33 degrees (less than 1 full moon wide), 60 degree AFOV / 120X = .5 degree FOV (about one full moon with no space around it), 82 degree AFOV / 120X = .68 degree FOV (about one full moon with a star field around it to frame it). I was just wondering if plossls are still worth it or should get a better eyepiece in a 30mm range. You can find the eyepieces I use and recommend in this article. I want these as possible as wide, magnification and astrophotography purpose. These tend to run toward the more expensive price range. Even if the scope comes with the more acceptable Kelner or . Look at the apparent field of view specs and understand what this means for the field of view. Plossl eyepieces are often included in better telescope packages as the starter eyepieces. 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. 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. Also worth mentioning i wear glasses which I will wear while observing. 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). Worth it is a tough question to answer. We have a range of 32 mm to 3 mm. I have owned wider eyepieces, but ultimately I just prefer the Plssls (must be a mental defect). We can see that 2 eyepieces have an advantage over 1.25 eyepieces when designers are making wide-view eyepieces. 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. Gold line eyepieces are available in 6mm, 9mm, 15mm, and 20mm focal lengths. 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 TFOV of the Hyperion will be greater than the TFOV of the Plssl, but the magnification will be about the same. Explore Scientific 68 34 mm or ES 82 30 mm would also be good choices at a significantly higher price but with better edge correction. https://telescopicwatch.com/best-astrophotography-telescopes/. I consider the Plossl to be the minimum standard for a good eyepiece. Quality this good usually costs a lot more. If you upgrade the telescope or add a second one, the eyepieces will work on that telescope too. Plossl eyepiece is one of the reasonable options when it comes to telescope eyepieces for stargazing or astronomy. Do you think the Baader Hyperion Zoom would work OK with the Skywatcher 150p? Generally, Plssl eyepieces are best suited to Newtonian and fast telescopes. The big problem with Plssls is that the eye relief is about 0.75 times the focal length. Imagine you are looking at the moon with each of these eyepieces and consider what you would see. Here are a few types of eyepieces you may read about and their typical AFOV. Lower power almost always looks better than higher power. My 20, 26, and 32mm Plossls will probably stay around. 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. Take the AFOV of the eyepiece (provided by the mfg) in your case 82 degrees I tested out my BH zoom yesterday for the first time and it is a great eyepiece so thank you for the recommendation! In this case, I am going to define this by the focuser and eyepiece size. It sounds cool, they must be better than regular Plossls with that name, right? This is perfect for a 25mm Plossl (an extremely common standard) and downright luxurious with a 32mm Plossl, but when you get below about 12.5mm or 10mm, it can begin to get difficult to use. 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. That said, I should also tell you that not all Plossls are created equal. Does this sound like something you would recommend based on the telescope I have? It includes two high-magnification Plossl eyepieces and five lower magnification zoom oculars with an adjustable focus in the kit. That is a really interesting picture. If your telescopes focal length is different, just change the focal length in the formula. 3. If we combine a Barlow with an 8-24 mm zoom eyepiece, we have an amazing range. I hope I can say that someday. In the case of the Celestron, you get all the focal lengths from 24 to 8mm in one eyepiece that costs $100. 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. The magnification range that is appropriate to your scope. 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. 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. In retrospect, I should have included Tele Vue. The quality of a Plossl eyepiece completely depends on the brand and model, so be very careful in our selection. From planetary viewing to deep sky watching. Yes, Plossl eyepieces are some of the most popular with amateurs and professionals alike. The original Meade 5-piece Super Plossl hasnt been in production for decades and at this point is more of a collectors item than a high-performance eyepiece. Eyepiece Field of View Simulator astronomy.tools Field of View Simulator Change Telescope Reset Change Target Add Equipment I possess an embarrassing array of fine eyepieces with names like Ethos and Nagler and Delos. With regards to budget, whatever works well and is on par with the quality & capability of the telescope. The price can run to over $1000 per eyepiece. I like my 38/70. Not all are Plossls, but excellent eps at f/10. Plssl eyepieces are affordable and they're outstanding additions to amateur telescopes. Find many great new & used options and get the best deals for Meade 32mm 2" 5-element Super Plossl Wide Field Eyepiece at the best online prices at eBay! Look those up, seeing and transparency in the context of astronomy. Best suited for telescopes with f-ratios f6 or slower. A typical zoom eyepiece has a focal length range of 8 mm to 24 mm. Optics manufacturers began selling and popularizing Plossl eyepieces, albeit with a generally simplified design where each achromatic doublet had the same focal length. I recently purchased the SVBony 7-21 zoom from Amazon. I purchased the Celestron Starsense 102mm refractor, focal length 660mm, stated highest useful magnification is 240x; it should arrive in about 2 weeks. Youll find yourself adjusting these type of factors less than. I have since moved up to a 12 Dob but I use the same eyepieces and the BH Zoom continues to be my most used. We will use a 100 mm telescope with a 600 mm focal length that only takes 1.25 eyepieces. Well-made lenses are expensive though, so in general the more lenses, the higher the price of the eyepiece. Plossl eyepieces have wider fields of view than Kellners. Or is this overkill and am I better off saving money and going forward something like the Celestron Zoom? Aspheric and Plossl Plossl are both lens designs that can be used in most telescopes. Because of this setup, you might also hear a Plossl eyepiece referred to as a symmetrical eyepiece. 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. And of course, NEVER look through a telescope pointed at the sun that does not have a safe solar filter covering the front. Conclusion. Low focal ratio scopes deliver the light rays to the eyepiece at an ever-increasing angle as the focal ratio number goes down. Pentax 10.5mm Eye Piece Excellent Condition (#314374986239) r***d (1910 . 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. Cheap to try, and if you don't like it, easy enough to sell also. On the inside, they are exactly the same design. 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. Some accept 2 and have an adapter that allows you to also use 1.25. Celestron - 1.25" Eyepiece and Filter Accessory Kit - 14 Piece Telescope Accessory Set - Plossl Telescope Eyepiece - Barlow Lens - Colored Filters - Moon Filter - Sturdy Metal Carry Case. I dont think so. Poorly chosen eyepiece might give you poor experience and sometimes even make stargazing difficult. Every new skill takes time. 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. Over time, you will likely spend more on eyepieces than on the telescope. A Televue Plssl may be better than a generic one, but the difference is probably not worth the additional cost. We often end up spending more on eyepieces than we did on the telescope. 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 . 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. I wont go into all the types of aberrations that can be there. And new proprietary designs come out from time to time. I guess my curiosity is mostly about the diagonal. When I started, I purchased less expensive eyepieces to learn about them and how I would use them. 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. You will get varying opinions on this but I would not worry too much about this. The reason a plano-convex lens is good for using with a telescope is that it provides for both magnifying and erecting the images. This also makes them more resistant to any form of dust getting inside the eyepiece. However, sometimes i am at the end of the range of the binocular focus adjustment. However, you may see them at higher prices for the short term. 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. And that is pretty much what Super Plossl are today. Ive read, and re-read, and re-re-read this page. Why two sizes? That's how cost-efficient the entire package is! For modern eyepieces, the differences between Plossl and Super Plossl is going to depend on the manufacturer. But in this scope, the 32 mm doesnt work well. ES 82 degree series plus 1 meade uwa @20 mm with 1800 focal length optical tube lowest mag 51 x / highest mag 300. I have seen some gatekeeping in this hobby about Kellners, and Im not sure I understand it. Again, I only do this for my low power wide views. . I once had to use a 6mm Plossl to attempt to perform a star-test collimation for a telescope at the observatory. For the $66/$42 of these kits, you can get one or two decent eyepieces (depending on where you buy). If you just want a quick answer, skip to the conclusion at the end of the article. Im just starting out with astronomy and this really helped my understanding. Any 1.25 eyepiece will work with the BH Zoom 2 adapter. A large field lens makes the ocular easy to look into. How you divide up your magnification range is up to you. I have to say that your questions are answered in the article. 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. You mentioned regarding ORTHO eyepieces: Excellent specialty eyepieces, usually for planets. If you are looking at eyepieces that are wider than 55 degrees AFOV, you will again need to consider looking at the better corrected, and typically more expensive, eyepieces. With modern multi-coated optics that thwart internal reflections, Plossls and Kellners have little difference in glare or transmission/opacity. Question: would it perform well with 1.5/2x and 3x Barlows? So you ended up with: Buy Astromania 1.25" 4mm Plossl Telescope Eyepiece - 4-Element Plossl Design . Each eyepiece gives you a unique magnification based on the formula listed at the start: Why do you need more than two eyepieces? Plossls are extremely versatile and can be used for all use cases. Omni 12mm Eyepiece - 1.25" Learn More. Orion Sirius Plossl 10mm telescope eyepiece 1.25" in very good to excellent 185794462395 If you are investing for the future, get the BH zoom. Depending on your budget, if you only have limited funds and are just starting to fill out your eyepiece collection I would go with the zoom, then zoom with Barlow. Kellner eyepieces have 3 lenses cemented together and have a 35-50 degree field of view. I would recommend the Baader Hyperion Zoom for any telescope. 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. This can be debated 100 ways, but that is my advice. A Kellner eyepiece has 3 lenses, while a Plossl has 4. is pretty forgiving of eyepiece faults and a wide variety of eyepiece designs will work just fine in it. 1. An exit pupil larger than 6 mm may start to show a shadow of the secondary mirror. I have the 38 mm and recommend it often. We will now discuss the specifications of eye relief and apparent field of view. https://www.widescreen-centre.co.uk/explore-scientific-70-eyepieces.html. I just ordered Hyperion 13mm and 21mm but I really like how sharp and crisp view is in plossl 40mm. In this article, we will only focus on the differences between Plossl and Kellner eyepieces. Again thank you very much for all the information in the page, excellent notes. When I was getting my start in the hobby, I bought an ultra-cheap ($15?) The "sharpness" you are seeing may well be better explained by the focal length of the ep than the quality of Plossls in general. Choose three focal lengths. I think Id really enjoy a zoom for all the reasons you mention, But Im having a difficult time assessing how much weight to put on the field of view of given eyepieces. 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). It all comes down to cost-benefit. You will see these under many brands, including Orion, Celestron, GSO, and others. I also have a 25mm plossl and am happy with that. Compared with a zoomable telescope eyepiece, they are pretty much the same in terms of the quality of the image. Like going from a 32 TV to a 65? By the 1980s, amateur astronomy equipment suppliers were still selling new telescopes with Huygens and Ramsden eyepieces, not merely because they were cheap but because they lacked internal reflections. Orion Sirius Plossl eyepieces are ideal for any type of telescope; refractor, reflector, or catadioptic. 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! The third choice of eyepieces is the Orion 12 mm Sirius Super Wide Angle Correct Image Eyepiece. Here's the short answer - Plossl eyepieces are generally better than Kellner eyepieces, but they also tend to be more expensive. You can read a thorough review of Goldline eyepieces here. Be sure to read the following as you consider your eyepiece purchases. I have used these in my F6 and F5 Dobs and find them a good value for the price. I expect such eyepieces are available but I have never seen or used one. I dont have a specific diagonal to recommend and I am not aware of any specific issues with the one that is included with the scope. You noted eye relief is important for those wearing glasses. https://telescopicwatch.com/best-telescope-eyepieces/. How does that field of view impact the viewing experience? Higher values are slower and lower values are fasterthis is a holdover from camera lens terminology and has to do with exposure times.). 6.5-ish mm (100x & 200x) She has been looking at the sky for years and hopes to introduce more people to the wonderful hobby that is astronomy. Thinking in a super ploss 32mm and maybe something between 9mm and 15mm . The sharp/crisp view you get from your 40mm Plossl comes down to the relatively low magnification it provides. A 6mm Plossl has a tiny eye lens. As the clear cut worlds best eyepiece manufacturer, their name should at least be mentioned in an article like this. The Plossl eyepiece is a four-element design consisting of two doublets. Is there anyway you could include links to the eyepieces you mentioned in the last paragraph of your reply as Im totally new so worried about buying the wrong thing! As is outstanding in the workmanship, a Plossl type eyepiece is a moderately wide field eyepiece involving two colorless doublets in which the crown components generally face each other. If you want to buy him $200 eyepieces so he can grow into them, that works. (Focal ratio is a term that refers to the telescopes focal length divided by its aperture. Divide that by the magnification of that eyepiece in that scope. Again, for no other reason than to compare it to the 17mm Hyperion and draw your own conclusions about Plssls. Fully coated with magnesium fluoride on every air-to-glass surface for excellent light transmission and high contrast views. There are many more designs that are associated with specific brands, but the ones above are designs that are produced by many companies in one form or another. Or, you may find that you like the 8 mm and 6 mm used with the Barlow and can avoid the expense of two eyepieces. We also joined our local Astronomy Club and look forward to joining others under the night sky when the opportunity presents itself again. https://telescopicwatch.com/?s=barlow, Best of luck with your new telescope. These are just a few examples of eyepieces that I have used, and some that I own. Even if you did need a 4mm focal length (for high powers in an f/4 telescope, of course), neither a Kellner nor a Plossl would have long enough eye relief for that to be comfortably usable! You can add the specialty single FL eyepieces later if you wish. A 32mm plossl eyepiece and a 2x barlow lens should be enough to give you a good range of eyepieces for every use case. Most likely it will be used as a loaner eyepiece to go with one of my two loaner telescopes. The Plossl eyepiece is a type of optical system that was invented by Ernst Abbe. Know what diameter eyepieces your scope takes. These come in focal lengths from 2.3 mm to 25 mm. And, in general terms, the higher the AFOV, the harder it is to make an eyepiece that will present a good image all across the field of view, which also drives up the cost. And I continue to read excellent reports on the AT Paradigm and similar under different labels. 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. However, Orion has managed to make one that is quite compatible with most styles of telescope. Do you need to have the best to enjoy astronomy? When you use a Barlow lens with an eyepiece, you get the magnification, but the eye relief is not affected. 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. Plossl eyepieces have an eye relief equal to about 80% of their focal length. A four-element eyepiece was made by putting together two achromatic doublets with different focal lengths. This was my first zoom eyepiece and the one that caused me to fall in love with zoom. Depending on how fussy you are about having a completely clean image across the visual field, if you have a lower focal ratio scope you will want to look for eyepieces with a reputation for being better corrected in low focal ratio scopes. 4. I have four telescopes, but I use the same eyepieces in all of them. There are three types of Plossl eyepiece: the regular, Super, and Orthoscopic. Oh the pain of uh having access to really cool eyepieces.). The tradeoff was that each lens surface added another internal reflection, reducing contrast and adding glare. (often referred to as Pseudo Masuyama). 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. Very worth it for me, as I like to use bino-viewers. In stargazing, eyepieces are as important as telescopes are. 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. I often recommend the 2 in this series as excellent low-power wide view eyepieces, especially in scopes at focal ratios below F8. Most people prefer the wider TFOV. Not everything in the sky benefits from high magnification. This eyepiece was even better at correcting false color fringing, but because of internal reflections, the glare was even worse. I loved my Baader Mark-IV 8mm-24mm Zoom+Barlow combo in my 8" EdgeHD. Now looking for a couple of decent eyepieces. This has nothing to do with your scope or eyepiece. . You are talking about the technical details of how a Barlow works, and I agree. In comparison, Aspherical lenses generally have no color distortion but might not work out well if the telescope user needs really high magnification. The stock 9 and 15mm Omnis were very good. To achieve six magnifications, you can have six eyepieces. If you feel the need to buy something now, consider this Orion diagonal. Now here is something that some of us classic scope nuts know - there are plossls, and there are plossls. This was very useful, I got a meade infinity 90mm ( after read the review here -. For your application and the eyepieces you have or are going to get, you really dont need anything else. There are some very good choices in this range. They are referring to how much or how little distortion is visible as you look from the center of the image out toward the edge. I do not miss beating my eyelashes against a 9.7mm Meade Plossl that I used to own. With a 130mm-F5 I would use a Plossl 32mm for its low-mag-wide-view. Between $100 and $250, I will call it mid-range. But the difference in price to get to the next level is high, and the performance difference may be small. 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. Kellners are the other popular design for amateur stargazing, go ahead and check out that article if you want to dive deeper into the subject. You can accomplish a longer eye relief by barlowing a longer f/l plossl, so that is something to think about as well. There is the 56mm Meade Plossl which magically turns my short FL refractors into their own finder scopes. In High School, they told me that F=MA In college I learned that F=dp/dt But F=MA works well enough for most situations and that is how I think of it. I think I will go for the BHZ because, as you say, I will be able to use it now and into the future. The difference in TFOV will be significant at this focal length. Despite this, I also have some Plossls which are indispensable. Focal length telescope / focal length eyepiece = magnification or power. No price limit. They are not that expensive I would pay about $100 for both eye pieces. When discussing eyepieces, you will hear people comment on how well the eyepiece is corrected.

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