As the clear cut worlds best eyepiece manufacturer, their name should at least be mentioned in an article like this. A rubber safety cap protects the lens when not in use while also providing additional grip on this 35 mm Plossl eyepiece. Plossl eyepieces have an eye relief equal to about 80% of their focal length. My understanding of eyepieces was very limited until I read this article, you explain things in a clear and understandable way which made my understanding so much clearer. 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. You see the object in a wider expanse of space with more stars. It allows each eyepiece to provide two magnifications. I need your advice on it. Great article on eyepieces but I am still undecided exactly what eyepiece & Barlow to buy and from where since some buying sites dont provide all the info you cite in your article. We also joined our local Astronomy Club and look forward to joining others under the night sky when the opportunity presents itself again. Many compare these favorably to eyepieces that are much higher priced. very happy. This is a good thing, because normally the shorter the focal length of the eyepiece, the less eye relief you have. The computerized pad and motor work on AA batteries which can last you a few hours. or a Baader Classic Ortho 18mm with both a 1.5/2x Barlow and 3x Barlow. You probably dont need to worry about upgrading them as soon as you get your telescope, unless you can see an optical problem in the one youre using or you find the short eye relief for the short-focus eyepiece uncomfortable. I do not miss beating my eyelashes against a 9.7mm Meade Plossl that I used to own. If you are buying your first telescope, and you are choosing between the telescope that includes a Kellner or a telescope that comes with a Plossl, with all the other specs being similar, pick the telescope thats offering you the Plossl, even if its slightly more expensive. So your 600 mm example (f/6) becomes, in effect, an 1800 mm focal length, f/18 but it does not change the focal length of the eyepiece. Inexpensive Plossls that are manufactured using low-quality lenses are susceptible to internal reflections when viewing bright objects at high magnification. This number can range from 30 degrees to 120 degrees. Be aware of the focal ratio of your scope. Can You See The ISS With A Telescope? The Japan made 16mm Meade 3000 was a very nice medium power plossl and the 40mm in that series was surprisingly nice as well. Edge sharpness is just satisfactory, nothing to boast about, as is the apparent field of view. But I have one little niggle. Here are a few types of eyepieces you may read about and their typical AFOV. 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! Thinking in a super ploss 32mm and maybe something between 9mm and 15mm . The Plossl eyepiece has 4 lenses, consisting of 2 identical double lenses. Super Plossls offer a smaller field of view, which makes them good for close-up views and examining small objects. Their eye relief is limited to about 70-80% of their focal length. Wide view and well-corrected view, even in F5 scopes. 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. Lets illustrate with an example using a 1200 mm FL telescope. Do you think the Baader Hyperion Zoom would work OK with the Skywatcher 150p? These and the essentially identical AT Paradigm are universally praised as good quality eyepieces with a wider 60-degree apparent field of view. How you divide up your magnification range is up to you. This eyepiece was even better at correcting false color fringing, but because of internal reflections, the glare was even worse. The Baader offers wider fov, but at quite the price premium. 6.5-ish mm (100x & 200x) This 10 mm Orion Sirius Plossl Eyepiece is a great, moderately high power ocular for observing small planetary nebulas and globular star clusters, as well as for planetary probing when seeing conditions don't permit higher magnifications. There are inexpensive adapters that will let you use standard 1.25 eyepieces in a .965 focuser/diagonal. I often recommend the use of a barlow to achieve the higher range of magnifications. https://telescopicwatch.com/best-telescope-eyepieces/. These are the workhorse eyepieces of today. Good value. Do I need an adapter if my scope has a Plossl lens? The Regular Plossl eyepiece is made to be a basic type of scope for viewing objects that are nearbysay within two feet or so from where youre looking through it. 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 Celestron and the Baader Hyperion. Although Kellner eyepieces will help you learn a lot in the beginning but soon will realize that youre missing out on something, and eventually you will be tempted to spend money on another good quality eyepiece. Put the zoom on the Barlow for the high range. Aspheric and Plossl Plossl are both lens designs that can be used in most telescopes. that I could slide into my telescope and look at. So, I think it worth your while to try the Plssls. The sharp/crisp view you get from your 40mm Plossl comes down to the relatively low magnification it provides. You have to decide how fussy you are about the edges and what your budget can tolerate. Simple Plosels work well and unless you have money burning a hole in your pocket, I would start with simple affordable eyepieces. These will eventually be used in an 8in dob whenever it arrives. Hi Ed, is pretty forgiving of eyepiece faults and a wide variety of eyepiece designs will work just fine in it. Us big kids like zooms too. Plssl's were top of the line at one time, and are still being sold today, so that says something too. You mentioned regarding ORTHO eyepieces: Excellent specialty eyepieces, usually for planets. You might be able to find a Kellner, or perhaps a high-quality Orthoscopic. 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. You will see these under many brands, including Orion, Celestron, GSO, and others. How important a consideration is this when deciding on an eyepiece? Newer multi-coatings are better, I suppose, but newer does not always mean better in the ocular game. They provide a range of magnifications with one eyepiece. The Big Bang Optics is a participant in the Amazon Services LLC Associates Program, an affiliate advertising program designed to provide a means for sites to earn advertising fees by advertising and linking to Amazon.com. Are Plossl eyepieces good? In the beginning, you are not going to know what the atmospheric conditions might be in your area. OHHH, now i get it! I wants to install one in house(fixed place) another I need movable. But what are the differences between these two and how do you know which one to choose? Many approach the quality of the premium brands. They are not that expensive I would pay about $100 for both eye pieces. Eye Relief: This refers to how close your eye has to be to the lens in order to see the full field of view. Find many great new & used options and get the best deals for Meade telescope maksutov eyepiece ETX-105EC Super Plossl 6.4mm 1.25" w capsule at the best online prices at eBay! So we say that an F5 scope benefits from better corrected eyepieces more than the F10 scope. I found an ES 70 degree AFOV 35mm eyepiece and am wondering whether I should get this or the Orion 38 70. I cannot thank you enough! 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. The first group is made up of a convex lens and concave lens, while the second one has four small cylindrical lenses that work together to magnify what you see through them for your viewing pleasure. Now you can get good eyepieces for under or around $50. The Hyperions work well in SCTs and you can't beat that large eyelens and eye relief ,JMO. Plossl eyepieces have an eye relief equal to about 80% of their focal length. It all comes down to cost-benefit. A 6mm Plossl has a tiny eye lens. 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! Because of this setup, you might also hear a Plossl eyepiece referred to as a symmetrical eyepiece. (often referred to as Pseudo Masuyama). Plossls are the clear winner here in most cases, unless you have one of the wider-field 50-degree Kellners. Plossl eyepieces have a wider field of view that can go from 50 to 56 degrees. As for tabletop scopes, dont forget that you need a table, stool, or bench to place them. The price ranges we show here are the typical prices. 11 = 163 = .5 Fully coated optics provide crisp and bright views of the cosmos. It's one of the best choices you have when it comes to budget stargazing. 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. I expect such eyepieces are available but I have never seen or used one. I had a TV 20mm Plossl once. Since each eye has a different focal point, I suspect pulling the eyepiece out until reaching focus and then tightening the set screw. I would expect it to be similar to the Celestron in image quality. The 50 apparent field of view is plenty for me. They also offer more eye relief than Plossls at the shorter focal lengths. 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. You have a very wide choice of brands and styles to choose from. Even if the scope comes with the more acceptable Kelner or . That is a really interesting picture. 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. Plossls are extremely versatile and can be used for all use cases. They are most useful in medium and longer focal lengths for terrestrial, planetary, and lunar viewing. Some accept 2 and have an adapter that allows you to also use 1.25. 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. There is no shortage of accessories for the Nexstar series. Its made up of four lenses in two groups. If you wear glasses when observing, you probably want 15mm or more of eye relief, which the 20mm Plssl provides, but the shorter fl ones dont. Using this approach, you would buy a 2X Barlow and hold off on the 4 mm and 3 mm to see if you can reach these magnifications often enough to justify buying an eyepiece. Are plossl eyepieces still worth it? I must say Im quite confused about eyepieces. If there is a local club, I would suggest you visit and consider joining. I think some of these kits even include 4mm eyepieces, and thats ridiculous! 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. Poorly chosen eyepiece might give you poor experience and sometimes even make stargazing difficult. 6mm Kellner eyepiece that I enjoyed a lot. Generally, dont mess around with solar projection unless youre okay with damaging the instrument. I want to help you select the best eyepieces for your budget and your telescope. Tele Vue has eyepieces that approach $1000. https://telescopicwatch.com/best-telescope-mounts-for-astrophotography/, Then you look at the optical tubes. 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. A four-element eyepiece was made by putting together two achromatic doublets with different focal lengths. AP is all about the mount and accurate tracking. The larger barrel allows them to create an eyepiece with a higher AFOV. This is where the cheap eyepiece will frequently fail to deliver a good image, around the edges. You are talking about the technical details of how a Barlow works, and I agree. Does having a 70 vs 52 fov make a noticeable difference for double the price? > Click here to jump to the Best Eyepieces section. I tested out my BH zoom yesterday for the first time and it is a great eyepiece so thank you for the recommendation! Buy Astromania 1.25" 4mm Plossl Telescope Eyepiece - 4-Element Plossl Design . Not perfect to the edge but better than the Bresser, in my opinion. They also have good eye relief, making them comfortable to use for extended periods. Well-made lenses are expensive though, so in general the more lenses, the higher the price of the eyepiece. In this article, were going to talk about what is a Plossl eyepiece, what are its components, how do they work, how many types are there and how youd buy a good Plossl eyepiece. With a 8" dobsonian, a 6mm is very versatile. If you are on a strict budget, this is a good choice as a zoom eyepiece. If you are new around here and you want to get started with the hobby, check out our astronomy for beginners guide or the recommended gear page. A 32mm plossl eyepiece and a 2x barlow lens should be enough to give you a good range of eyepieces for every use case. Note to spectacle wearers: Plossl eyepieces with 15mm and longer focal lengths are good choices for spectacle wearers but for shorter focal lengths the Celestron XCel LX series have greater eye-relief so are better suited. However, for your extra money you get the finest manufacture, the best polish and coatings available. I dont think so. Eye relief is the distance from the eye lens to your eyeball, and the higher the better (within reason). Plssl eyepieces are good all-around performers, producing sharp images at the center of the field, but they have only four lens elements. Using your example: We will use a 100 mm telescope with a 600 mm focal length and Another way to look at it is that a 30 mm eyepiece in a 3X Barlow works like a 10 mm eyepiece.. Eyepieces are a religion. 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. For our experience level, would you recommend changing anything right now? Not all are Plossls, but excellent eps at f/10. Not only is it good to share the experience but you can get first-hand advice on things like diagonals and may even be able to try one in your scope to see if it makes a difference. If money is not a concern, you cant go wrong with Tele Vue eyepieces, any Tele Vue eyepieces. Thanks so much. I just added the 4.7 mm. EP-mm = magnification = afov While I also have the Baader Hyperion Zoom, mentioned later, I continue to make use of the Celestron, especially in my smaller scopes. I recently purchased the SVBony 7-21 zoom from Amazon. This also makes them more resistant to any form of dust getting inside the eyepiece. The Hexagon Zoom Eyepiece is made from durable plastic material that resists scratching and it has an eye relief distance of 15mm. With an f/10 telescope, Plossls are as sharp as any other kind of eyepiece of the same focal length. This was very useful, I got a meade infinity 90mm ( after read the review here -. Prices can run from $20 to $200 so the field is pretty broad. When I was getting my start in the hobby, I bought an ultra-cheap ($15?) In some cases, the eyepieces are waterproof to protect them from internal contamination caused by heavy dew conditions. The TFOV will be as wide as your 40mm Plssl, but with greater magnification and a slightly darker sky background. 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. 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. But the difference in price to get to the next level is high, and the performance difference may be small. Free shipping for many products! Why not go back to the people who sold you the scope and get their help. (Compare, for instance, 20mm of each type, or 10mm of each type.) 2019-2023 Little Astronomy. . If you upgrade the telescope or add a second one, the eyepieces will work on that telescope too. The Big Bang Optics was started because of our love for astronomy and to help others like us find the best telescope and accessories. Press Esc to cancel. This is the link to the eyepiece I am looking at potentially buying, would you recommend this over the Orion one or vice versa do you think? Required fields are marked *. For shorter focal lengths, the StarGuider BST series eyepieces have greater eye-relief, so are better suited. For it's cost, a 32mm Plssl eyepiece is hard to beat. https://telescopicwatch.com/orion-skyquest-xt8-intelliscope-review/. I currently own a Mak127 ( that can't use 2"eyepieces) and a 80ED ( that one can hold 2"eyepieces). Plossl eyepieces are often included in better telescope packages as the starter eyepieces. 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. Some of these series also offer 2 eyepieces for telescopes that can accept 2 eyepieces. So plan this into such a purchase. Then you can judge for yourself if it is worth it. Disclosure: This post contains affiliate links and I may earn a small commission (at no extra cost to you) if you click through and make a purchase. With regards to budget, whatever works well and is on par with the quality & capability of the telescope. PayPal, cash, bank transfer are all acceptable. 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. Here we have very good eyepieces with some extra features. Focal length telescope / focal length eyepiece = magnification or power. There is a little bit more to it than that and there are other design . Thanks for going through the entire post. They are also good for those who have astigmatism because they are designed to be more forgiving with eye placement. The image will be reversed left to right so you will need to get used to that. 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.
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