Also, atmospheric conditions can limit how much magnification you can use on a given night. I would wait till you get the scope and use the included eyepieces. Kellner eyepieces were first designed by Carl Kellner in 1849. 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). However, Orion has managed to make one that is quite compatible with most styles of telescope. I have a variety of eyepieces, including Explore Scientific and Meade 82 degree series so I have choices. The larger barrel allows them to create an eyepiece with a higher AFOV. . Explore Scientific recently extended this offering by adding a series of 82 degree eyepieces labeled LER, or Long Eye Relief. The eye relief is the distance between your eyes and the eyepiece where you are able to view the whole image comfortably. Conclusion. You use the 8-24 zoom for the midrange. If the above guide has helped you understand the terms and workings of eyepieces, scroll up and make a selection from our recommendation list. Customer reviews Average Rating (16 Reviews): Write a Review and share your opinions! Just give yourself some time to learn the app and to understand the scope. Any 1.25 diagonal should work. The 26 and 32 are usually the first ones I reach for. Gosky 1.25inch Plossl Telescope Eyepiece - Amazon.com I have seen wider-field Plossls. I am going to use 6. It had one of the best fields, edge to edge, in my SCT that I've ever seen. If you cant use 2, that 32 mm Plossl, which has a 50 degree AFOV, will give you about as wide a field of view as you can get in a 1.25 eyepiece. They also improve a bit when it comes to eye relief. You see the object in a wider expanse of space with more stars. 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. If you had to choose 1 low-power 2 EP for chasing deep sky objects (again, at 600mm f7.5), what size piece would you go for? 2019-2023 Little Astronomy. Theres a wide range of quality when it comes to Plossls and trusting the brand you are getting one from matters a lot if you dont want to get an eyepiece with lots of reflection or optical issues. I have Celestron and the Baader Hyperion. You can enjoy wide-angle views without giving up any of the clarity or sharpness when using Plossl eyepiece while Kellner will give you more magnified views but at less than half the brightness levels in comparison to other lens designs on this list if light pollution was involved. Both will provide the same magnification. These come in focal lengths from 2.3 mm to 25 mm. In stargazing, eyepieces are as important as telescopes are. https://telescopicwatch.com/celestron-8-24mm-zoom-eyepiece-review/. There is one aspect in which a Kellner can actually outperform a Plossl: eye relief. Lets just say that once you get below F5, it is really hard for the eyepiece to deliver a clean image to the edge. Eyepieces are a religion. The TFOV will be as wide as your 40mm Plssl, but with greater magnification and a slightly darker sky background. Celestron Telescopes Reviews: Should you buy? - Little Astronomy Plossl eyepiece is good for astronomy and microscopy. I consider the Plossl to be the minimum standard for a good eyepiece. Outstanding job Jack. 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. SVBONY Telescope Eyepiece Set Telescope Accessory Kit with 2x Barlow Lens 4 Element Plossl Design 6.3mm 32mm 40mm for Astronomical Telescopes. This eye piece provides the maximum true field of view in the 1.25 inch format. If we combine a Barlow with an 8-24 mm zoom eyepiece, we have an amazing range. If one Super Plossl specifies it uses a 5 lens design, then you can definitely consider it a true Super Plossl that might offer better performance, but no brand has released any of those for decades. Your email address will not be published. Well, I'll just say it. Very often, those eyepieces will be in the outdated 0.965 format rather than the modern 1.25 or 2 diameter barrel format. 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. I do not miss beating my eyelashes against a 9.7mm Meade Plossl that I used to own. is pretty forgiving of eyepiece faults and a wide variety of eyepiece designs will work just fine in it. Omni 6mm Eyepiece - 1.25" Learn More. With the XT8i I usually used the zoom configured with a 1.5X Barlow giving me a 75X to 225X which I found to be nearly perfect for that scope. I purchased the Celestron Starsense 102mm refractor, focal length 660mm, stated highest useful magnification is 240x; it should arrive in about 2 weeks. No price limit? All focal lengths offer 50 field-of-view except the 40mm which offers 42 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. 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. Astrophotography with Nikon D3200: Can It Be Better? Vixen NPL Eyepieces | First Light Optics Plossls are extremely versatile and can be used for all use cases. These are often compared to the higher priced offerings. Differences and Similarities. Kellner eyepieces have 3 lenses cemented together and have a 35-50 degree field of view. Pentax K-70 Astrophotography: The Ultimate Camera on a Budget! Tele Vue has eyepieces that approach $1000. Theres a reason Plossls are usually kept at 52 degrees. If you plan to go longer than that you can get an AC adapter or a power tank. I recently purchased the SVBony 7-21 zoom from Amazon. very happy. 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. This is my all-time favorite eyepiece and the one I use more than all the others put together. Even when I upgraded to a 6mm Goldline, I kept the Kellner around because of pretty annoying kidney-bean blackout issues on the Moon with that eyepiece. I would recommend the Orion Q70 series over that. The 66-degree AFOV of the Gold Line series provides a 32% wider field than Plossl eyepieces. Since it's such a popular eyepiece and allows for quality, planet-viewing, that makes it a great instrument for attracting newcomers to the hobby, especially children. The category is over $300 and some of these are way over $300. The atmosphere is typically the limiting factor as we get to higher magnifications. You noted eye relief is important for those wearing glasses. The Plossl is a good all-around eyepiece design, is well suited for generic use and is relatively inexpensive to make. Personally I think they're still worth it. That said, I should also tell you that not all Plossls are created equal. What diameter eyepieces will my telescope accept? Amazon.com : SVBONY SV137 Barlow Lens 1.25 Inch 2X Barlow Lens Metal still, i somehow managed to avoid the eyepiece pitfalls when buying used off ebay. https://www.amazon.com/s?k=Orion+Q70&ref=nb_sb_noss_2, Understanding Telescope Eyepieces- There are recommendations, based on budget, document.getElementById( "ak_js_1" ).setAttribute( "value", ( new Date() ).getTime() ); Stargazing Help came into existence when some young minds got mesmerized by outer space while camping. 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. 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. 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. (Svbonys Plossls, for example, are optically identical to Orions Sirius Plossls). The Big Bang Optics participates in the Amazon Services LLC Associates Program, which is an affiliate advertising program designed to provide a means for websites to earn advertising fees by advertising and linking to amazon.com. But your point is well taken. So I sincerely hope that this article helps you understand the similarities and differences between Plossl and Kellner eyepieces so that you can an informed decision and choose the best one for yourself. Nice, thank you again for the additional inputs. I like my 38/70. The telescope comes with a 2x Barlow so I was thinking of getting one of the zooms you recommended. Finally, a wider field of view just makes it easier to find stuff. To get the best performance, you have to be willing to pay the price. SVBONY Telescope Eyepiece Set Telescope Accessory Kit with 2x Barlow L Pay attention to the eye relief, especially if you will be observing with glasses. A Plossl eyepiece has a lens thats plano-convex, which means it is flat on one side and convex on the other. I often recommend it. Most people will be fairly comfortable with eye relief of 12 mm or higher. Looking forward to first use. Here we get into the BMW, Cadillac, Porsche, and Ferrari of eyepieces. Nothing will stop you from trying to go higher, but in all likelihood, the image will be poor and not worth the cost of eyepieces to achieve it. Despite this, I also have some Plossls which are indispensable. 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. This saves money and helps you shop in an organized manner. An exit pupil larger than 6 mm may start to show a shadow of the secondary mirror. . As we go up in price range, we gain capabilities that may not be immediately obvious. These are things you will want to know and use. Offering a wide 43 apparent field of view, this 40mm Orion Sirius Plossl Telescope Eyepiece provides extremely sharp images of impressively high contrast. A decent barlow might cost as much or even more. If you are very demanding and must have the very best, this is where you want to be. Do I need an adapter if my scope has a Plossl lens? Thanks for going through the entire post. If money is not a concern, you cant go wrong with Tele Vue eyepieces, any Tele Vue eyepieces. I found an ES 70 degree AFOV 35mm eyepiece and am wondering whether I should get this or the Orion 38 70. 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. The BHZ 2 Adapter has threads on it so you can attach filters to it allowing you to use 2 filters with the zoom. The biggest advantage is much better ER in a large ocular. Question: would it perform well with 1.5/2x and 3x Barlows? What focal length eyepieces should I buy? Now you can get good eyepieces for under or around $50. Below .5 mm exit pupil, floaters in the eye become more apparent and can be bothersome. Again, does it create a more immersive viewing experience? that I could slide into my telescope and look at. The Japan made 16mm Meade 3000 was a very nice medium power plossl and the 40mm in that series was surprisingly nice as well. Because of this setup, you might also hear a Plossl eyepiece referred to as a symmetrical eyepiece. The sharp/crisp view you get from your 40mm Plossl comes down to the relatively low magnification it provides. They are also good for those who have astigmatism because they are designed to be more forgiving with eye placement. Or take one of your eyepieces and measure across the bottom of the barrel. I owned an XT8 Intelliscope which is the same optical tube on a PushTo mount. They are not that expensive I would pay about $100 for both eye pieces. Ive added comments on where you may find and use them. 5-Minute Read, How To Increase The Magnification Of A Telescope; 5-Minute Read. 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. Good quality. Thanks all. Press Esc to cancel. My 20, 26, and 32mm Plossls will probably stay around. Also, as the apparent field of view gets wider, the image will require more correction. 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. But I think you will feel more confident about your purchases and be less likely to be disappointed if you read through the guide. My Meade 4000 56 and 60 degree Meade Plossls are pretty sharp to my eyes and do pretty well for me. Orion Sirius Plossl 10mm telescope eyepiece 1.25" in very good to excellent 185794462395 A 32mm plossl eyepiece and a 2x barlow lens should be enough to give you a good range of eyepieces for every use case. Good 32mm Plssls run around $30-$40. I really like the simplicity and compactness of these simpler designs (ie: Plssls, Orthos, Kellners, etc). I was looking on a OPT website and they have celestron 32mm and 15mm plossl. In this article, we will only focus on the differences between Plossl and Kellner eyepieces. Goldline Eyepieces - The Definitive Guide - Telescopic Watch The Wiki article(s) were very good if anyone else is confused. 5 Best Telescope Eyepieces in 2023 [+Beginner's Guide] So, if your scope is F6 or lower, you may want to consider some of the higher priced, better corrected eyepieces if you want the best image to the edge of the field. Note that the full moon appears to be approximately .5 degrees across, so use that as a mental reference when looking at the numbers. 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. As to a more immersive experience, yes, I would say a wider FOV does provide a more immersive experience. The combination of high-quality optics and accessible prices have made them the favorite design for amateur astronomers and even professionals. Some accept 2 and have an adapter that allows you to also use 1.25. 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. 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. With your glasses on, you simply cant get your eye close enough to an eyepiece that only has 10 mm of eye relief. A very good quality eyepiece for a reasonable sum. The difference isnt that severe, and I often track more often than is strictly necessary to keep the object centered anyway. The Celestron Omni Plossl eyepiece range offers a nice entry-level range into the higher quality 4-element Plossl design. You can find the eyepieces I use and recommend in this article. Was compairing the Apertura standard 15mm Plossl with their 15mm super wide angle eyepiece (70 afov). The image will be reversed left to right so you will need to get used to that. They can be recognized by a thin gold line just below the eye cup. Read our full affiliate disclosure here. Age is not part of the equation. Learn more about our story and the team behind the scene. All registered. 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. Are plossl eyepieces still worth it? They deliver sharp images in almost all telescopes. Plossl eyepiece is one of the reasonable options when it comes to telescope eyepieces for stargazing or astronomy. Most telescopes come with one or two eyepieces. Planetary eyepieces: Ploessl or Orthoscopic and which brand I am very interested in viewing Nebulae do you think this set up will work well for that or do I need other eyepieces or filters? I want these as possible as wide, magnification and astrophotography purpose. Meade 32mm 2" 5-element Super Plossl Wide Field Eyepiece Combining a cheap eyepiece with a cheap barlow isn't a elegant solution. At that price point, it couldnt compete with other 5-element devices like Erfle and Nagler eyepieces that had better performance. However, i can read very well without my glasses with almost microscopic vision and can use my binoculars without glasses. Divide that by the magnification of that eyepiece in that scope. 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. Kellner eyepieces, on the other hand, are generally pretty close to each other in terms of quality so theres little chance you will get much variance in image definition between brands. Here's the short answer - Plossl eyepieces are generally better than Kellner eyepieces, but they also tend to be more expensive. Good evening everybody. 30 = 60 = 1.3 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. The original design for Plossl eyepieces has existed since 1860. For the $66/$42 of these kits, you can get one or two decent eyepieces (depending on where you buy). All are good eyepieces and diagonals, and would be excellent for star party use. On many occasions, that will be too high power for the atmospheric conditions. In the 1990s Meade instruments came up with a new design for the Meade 4000 line similar to Plossl that added a fifth glass element on top of the two pairs (4 total). I have seen some gatekeeping in this hobby about Kellners, and Im not sure I understand it. Best Telescope Eyepieces For Viewing Planets [Top 8 Picks For 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. Your email address will not be published. With regards to budget, whatever works well and is on par with the quality & capability of the telescope. Is it just about finding and framing, or do wide fov EPs create a more immersive experience? These are just a few examples of eyepieces that I have used, and some that I own. 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. For example, if you put a 30 mm eyepiece in a 3X Barlow, it will triple the magnification you get from that eyepiece. Required fields are marked *. It also gives the widest possible exit pupil in my dob and SCT, very handy when using nebula filters. Low focal ratio scopes deliver the light rays to the eyepiece at an ever-increasing angle as the focal ratio number goes down. Visual astronomy is all about aperture, the more the better. This can be especially helpful in telescopes of focal ratios below F8. What Is a Plossl Eyepiece - Planet Seekers I did sell them all when I adopted Dioptrx, and the Naglers are amazing! 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! The result in magnification is the same and the eye relief associated with the eyepiece is retained or, in some cases, actually lengthened a bit. 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. 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.
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