Offering a wide 52 apparent field of view, these 10mm, 17mm, and 25mm Orion Sirius Plossl Telescope Eyepieces provide extremely sharp images of impressively high contrast. The Baader offers wider fov, but at quite the price premium. They are also good for those who have astigmatism because they are designed to be more forgiving with eye placement. The Wiki article(s) were very good if anyone else is confused. You can accomplish a longer eye relief by barlowing a longer f/l plossl, so that is something to think about as well. A standard Plossl eyepiece is typically between 20mm to 25mm but can range anywhere from 15mm up to about 40mm in diameter. Best Telescope Eyepieces 2022 (TOP 7 Reviews) - Buyer's Guide It also gives the widest possible exit pupil in my dob and SCT, very handy when using nebula filters. 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.. 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. Was compairing the Apertura standard 15mm Plossl with their 15mm super wide angle eyepiece (70 afov). I beleive this is the same as they ones you asked about. I need your advice on it. Plossl against Kellner eyepieces in a previous article, 5 Budget Telescopes That Are Sneakily Powerful. What is a Plossl Eyepiece and What's So Great About Them? They are all made by the same OEM manufacturer. The 26 and 32 are usually the first ones I reach for. 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. Are plossl eyepieces still worth it? 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. Note that the Explore Scientific 68 and 82 degree eyepieces are also available in 2 size for your low power wide view requirements. I possess an embarrassing array of fine eyepieces with names like Ethos and Nagler and Delos. I had one and sold it. Now we have a maximum established. At shorter focal lengths they have less eye relief, and at all focal lengths they have a narrower field of view, than newer types. 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! These have the advantage that the front section with the optics can be unthreaded and threaded on to the filter threads of a 1.25 inch eyepiece. EP-mm = magnification = afov It also was considerably more expensive. It will also make your life easier if youre out observing on windy days that would otherwise blow off the front cover of your telescope. So its best for use during duller times when there isnt much brightness visible. I have four telescopes, but I use the same eyepieces in all of them. I had a TV 20mm Plossl once. When discussing eyepieces, you will hear people comment on how well the eyepiece is corrected. Super Plossls offer a smaller field of view, which makes them good for close-up views and examining small objects. I did sell them all when I adopted Dioptrx, and the Naglers are amazing! In the case of the Celestron, you get all the focal lengths from 24 to 8mm in one eyepiece that costs $100. 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. eyepiece for Xmas scope - Beginners Forum (No Astrophotography This is just a planning target. It also produces an erect image, meaning you see what youre viewing rather than seeing everything upside down or sideways as some types do. The Orthoscopic Plossl eyepiece is for those who are interested in performing close-up work on specimens up to three inches away from them and still get high magnification. Comparing to Plossl eyepieces, Super Plossl is somewhat better for astronomy. Lets just say that once you get below F5, it is really hard for the eyepiece to deliver a clean image to the edge. I agree. However, there can be a problem bringing the eyepiece into focus. Excellent article, thank you very much for taking the time to publish it. This SVBONY eyepiece review should get you up to speed with the budget stargazing options. Omni 12mm Eyepiece - 1.25" Learn More. Look at the apparent field of view specs and understand what this means for the field of view. I usually recommend a 32 mm Plossl type eyepiece as that provides about the widest view you can achieve with a 1.25 focuser. This is a fairly inexpensive zoom that I wanted to try. Outstanding job Jack. Im also uncertain about what to expect from an additional investment? Some will offer longer eye relief which can be important to eyeglass wearers. 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? 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. Each eyepiece gives you a unique magnification based on the formula listed at the start: Why do you need more than two eyepieces? 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. I have seen some gatekeeping in this hobby about Kellners, and Im not sure I understand it. 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. 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. Higher values are slower and lower values are fasterthis is a holdover from camera lens terminology and has to do with exposure times.). It offers good color correction and high-contrast images. However, for your extra money you get the finest manufacture, the best polish and coatings available. Your email address will not be published. The magnification range that is appropriate to your scope. I wont go into all the types of aberrations that can be there. At 32mm, a Plssl will give you as wide a field of view as any 1.25mm eyepiece can. Which is Stronger? 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. She has been looking at the sky for years and hopes to introduce more people to the wonderful hobby that is astronomy. https://telescopicwatch.com/celestron-8-24mm-zoom-eyepiece-review/. 75-225X, 1.5X Barlow 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. This may be enough for many eyeglass wearers. Omni 56mm Eyepiece - 2" Learn More. Now, for my one or two low power eyepieces, I also like to know the field of view provided by that eyepiece. What Is A Barlow Lens For A Telescope? This is where the second formula comes into play. If you plan to go longer than that you can get an AC adapter or a power tank. Generally, dont mess around with solar projection unless youre okay with damaging the instrument. Thus the 30 mm eyepiece in a 600 mm telescope produces 600/30 = 20X magnification while with the Barlow, we have 1800/30 = 60X. You use the 8-24 zoom for the midrange. However, I have eyepieces with much smaller exit pupils and they work fine. 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. Focus on the magnifications rather than the mm of the eyepieces. You mentioned regarding ORTHO eyepieces: Excellent specialty eyepieces, usually for planets. https://www.amazon.com/Explore-Scientific-68%C2%B0-40mm-Eyepiece/dp/B007LMG3F6/ref=sr_1_1?dchild=1&keywords=explore+scientific+68&qid=1606584676&sr=8-1, Thanks for your reply, I think I will go for the Orion Q70 . So, I am going to organize the guide around five questions and four formulas. Finally, a wider field of view just makes it easier to find stuff. Not perfect to the edge but better than the Bresser, in my opinion. As said, they are cheap to compare. A Plssl is probably as good as any 32mm eyepiece in a 1.25 inch focuser. The basic design hasnt changed much, but the real costs of manufacturing have dropped. They are 82-degree AFOV eyepieces. Celestron's 4-element Plossl eyepiece features include blackened lens edges to minimize internal reflection and maximize contrast, fully multi-coated optics for maximum light transmission. Conclusion. Lets give an example. The views through it are very impressive, and it always amazes me when I get that one out. 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! A Barlow lens will not reduce the CA in a low FR achromat refractor so to speak of it changing the focal ratio would, I think, introduce confusion in most situations. I need some eyepieces with long FL for low magnifications. One of the main drawbacks of this eyepiece, though, is the eye relief. https://telescopicwatch.com/orion-skyquest-xt8-intelliscope-review/. The bottom line is that it is best to have several magnification choices so you can optimize the view. 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. https://telescopicwatch.com/celestron-starsense-explorer-dx-102-130-reviewed/, If I was to upgrade these lenses, I was planning on working toward something like this: Astrophotography with Nikon D3200: Can It Be Better? 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. You see the object in a wider expanse of space with more stars. Not everything in the sky benefits from high magnification. Another really helpful article, Ed. Nice, thank you again for the additional inputs. Not all are Plossls, but excellent eps at f/10. Us big kids like zooms too. I believe the 5000 UWA's are good as well. Does this sound like something you would recommend based on the telescope I have? Save my name, email, and website in this browser for the next time I comment. The longer FL Plossls (>15mm) have some distinct advantages over more complex designs without the major disadvantage of Plossls which is short ER. The Hyperions work well in SCTs and you can't beat that large eyelens and eye relief ,JMO. If you wish to find a short-focal length eyepiece with a longer, more comfortable eye relief, you could use a long-focus eyepiece with a separate, high-quality barlow lens (an achromatic or apochromatic fully multi-coated barlow would be necessary), or you could purchase one of the several designs incorporating a smyth/barlow lens into the eyepiece design. They are also really sharp. You can find the eyepieces I use and recommend in this article. 8.8 = 240 = .34 But dont fear that you will waste your investment as eyepieces are standard sizes. I took notes and now can shop with confidence Some experience with Baader Aspheric 31mm/36mm? - Eyepieces - Cloudy Nights 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. For visual use, 1.5X, 2X, 2.5X, and 3X Barlow lenses are common. 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. Top 10 Best Best Plossl Eyepieces 2023 - Complete Buying Guide If we want to get VERY specific to a combination then inherent aberrations of this scope and that eyepiece could produce a unique result. With a 8" dobsonian, a 6mm is very versatile. I saw Jupiter today and its 4 moons but when I looked at saturn I struggled to get a really clear image and it was very small. In the beginning, you are not going to know what the atmospheric conditions might be in your area. None of my fancy EPs have enough contrast for this application. We have compared Plossl against Kellner eyepieces in a previous article. Super Plossl eyepieces are generally a little smaller than this at around 16-20 mm in size, which is why theyre sometimes referred to as wide-angle or low power plossls. Fully coated with magnesium fluoride on every air-to-glass surface for excellent light transmission and high contrast views. Required fields are marked *. 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. Despite one being fundamentally superior to the other in terms of image correction, Kellners and Plossls are generally quite comparable in terms of the image you actually see. 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. A Plssl is probably as good as any 32mm eyepiece in a 1.25 inch focuser. So perhaps you do your line up like this. In retrospect, I should have included Tele Vue. A Plossl eyepiece is one of the most decent general-purpose eyepieces that are available on the market. I have an SCT and my eyepiece case only hasPlssls (and one Ortho) in it. Question: would an 18mm Baader Classic Ortho mostly used for Moon and planets loose sharpness and contrast if used with a short F5 telescope like the Celestron Astro-Fi 130? However, your budget must guide your purchases. Disclosure - If you buy something via our link, we may earn a commission with no additional expense to you. Later in the article, I will also give my top recommendations for both the best Kellner as well as the best Plossl eyepieces. Because of this setup, you might also hear a Plossl eyepiece referred to as a symmetrical eyepiece. Not really. I was looking on a OPT website and they have celestron 32mm and 15mm plossl. 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. Look those up, seeing and transparency in the context of astronomy. Quality this good usually costs a lot more. Recall that your lowestpower eyepiece's exit pupil should not exceed 6mm. In most cases, these are eyepieces that are focused on wider AFOV or better correction for low focal ratio scopes.
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