are plossl eyepieces good

32 mm = 18.75X12 mm = 50X8 mm = 75X6 mm = 100X4 mm = 150X3 mm = 200X. . The Plossl eyepiece is a four-element design consisting of two doublets. It includes two high-magnification Plossl eyepieces and five lower magnification zoom oculars with an adjustable focus in the kit. To determine a magnification range, we will start with the aperture of the telescope, the size of the front lens, or the mirror in the back. Videos for related products. Well-made lenses are expensive though, so in general the more lenses, the higher the price of the eyepiece. These are highly sought after ep's, and hold their value well. Plossl eyepiece is good for astronomy and microscopy. The price ranges we show here are the typical prices. They are most useful in medium and longer focal lengths for terrestrial, planetary, and lunar viewing. Well, I'll just say it. Omni 15mm Eyepiece - 1.25" Learn More. Why not go back to the people who sold you the scope and get their help. There is no guarantee that you will be able to get a good image of any given target at that level of magnification on any given night. I usually recommend a 32 mm Plossl type eyepiece as that provides about the widest view you can achieve with a 1.25 focuser. None of my fancy EPs have enough contrast for this application. We will use a 100 mm telescope with a 600 mm focal length that only takes 1.25 eyepieces. The atmosphere is typically the limiting factor as we get to higher magnifications. If your telescopes focal length is different, just change the focal length in the formula. It has made learning the Constellations and star-hopping more fun and engaging for my whole family exactly what I was hoping for. If that surface is wobbly the scope will be almost useless. Newer multi-coatings are better, I suppose, but newer does not always mean better in the ocular game. A 6mm Plossl has a tiny eye lens. Plossl eyepieces have an eye relief equal to about 80% of their focal length. With a refractor, SCT or MCT, it is usually better to get a correct image diagonal than a correcting eyepiece. 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. Your email address will not be published. These companies rebranded them under their own names. You are asking about a very specific eyepiece in a very specific scope combined sometimes with a Barlow. She has been looking at the sky for years and hopes to introduce more people to the wonderful hobby that is astronomy. 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). I dont own nor have I used it, but Orion has a very good reputation. The field of view of a p Plossl eyepiece is typically 60 to 120 degrees. 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. I tested out my BH zoom yesterday for the first time and it is a great eyepiece so thank you for the recommendation! However, i can read very well without my glasses with almost microscopic vision and can use my binoculars without glasses. There is no problem using a Celestron eyepiece in a Meade telescope, for example. Higher values are slower and lower values are fasterthis is a holdover from camera lens terminology and has to do with exposure times.). Kellner and Plossl- both are two different types of eyepieces for telescopes. Can You See The ISS With A Telescope? 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! I would like to know what is best for a 7 year old that would be getting his first telescope. Even if we were next-door neighbors this would take weeks of discussion and planning. 5-Minute Read, How To Increase The Magnification Of A Telescope; 5-Minute Read. 2. Omni 32mm Eyepiece - 1.25" Learn More. The Celestron Omni Plossl eyepiece range offers a nice entry-level range into the higher quality 4-element Plossl design. This will become more apparent the wider the AFOV is of the eyepiece, in my experience. 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. Get to know more about us here. The price can run to over $1000 per eyepiece. 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! With a 8" dobsonian, a 6mm is very versatile. As we go along, I will refer back to these, so dont worry if you cant answer the questions or understand the formulas now. Learn more about our story and the team behind the scene. As new anti-reflection coatings were developed, it became possible to actually make use of complex lens arrangements (not just in relatively simple 4-element systems but also in convoluted, extreme wide-field eyepieces such as the TeleVue Nagler). They are also good for those who have astigmatism because they are designed to be more forgiving with eye placement. The Big Bang Optics is compensated for referring traffic and business to these companies. The larger barrel allows them to create an eyepiece with a higher AFOV. Hi Ed, We will use 10 mm as the eyepiece focal length, but we will look at three different 10 mm eyepieces, each with a different apparent field of view, AFOV. Put the zoom on the Barlow for the high range. I really enjoy usingPlssls. Oh the pain of uh having access to really cool eyepieces.). You alluded to them, but you never mentioned Tele Vue. Your email address will not be published. Combining a cheap eyepiece with a cheap barlow isn't a elegant solution. Outstanding job Jack. At shorter focal lengths they have less eye relief, and at all focal lengths they have a narrower field of view, than newer types. 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. For shorter focal lengths, the StarGuider BST series eyepieces have greater eye-relief, so are better suited. Also worth mentioning i wear glasses which I will wear while observing. For modern eyepieces, the differences between Plossl and Super Plossl is going to depend on the manufacturer. At least you'll have one budget eyepiece that will give you a larger part of the sky at low magnification. Look at the apparent field of view specs and understand what this means for the field of view. No price limit. However, for your extra money you get the finest manufacture, the best polish and coatings available. It's one of the best choices you have when it comes to budget stargazing. is pretty forgiving of eyepiece faults and a wide variety of eyepiece designs will work just fine in it. 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. I have used both Kellner & Plossl eyepieces and a few others, and I can tell you that they all are quite different from each other in terms of the quality of the image that they produce. I have owned wider eyepieces, but ultimately I just prefer the Plssls (must be a mental defect). This can be debated 100 ways, but that is my advice. Between $100 and $250, I will call it mid-range. Edited April 23, 2010 by russ teh_orph Members 28 198 Author It offers good color correction and high-contrast images. Many thanks, Sophie. See if you will observe with or without your glasses. I dont think so. Consider something between 35 and 40 mm in focal length with an AFOV of 65 degrees or wider for your lowest power eyepiece for your telescope. Good 32mm Plssls run around $30-$40. Non-eyeglass wearers can usually tolerate Plossls as short as about 10-12mm before their eyelashes start brushing the ocular lens. For super Plossl eyepiece, the field of view is typically 40 to 60 degrees. Some people have more than 6 and some have as few as 3. 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. Are plossl eyepieces still worth it? All of the Omni eyepieces have a 1.25" barrel size with the exception of the super low power 56 mm, which has a barrel size of 2". Most people will be fairly comfortable with eye relief of 12 mm or higher. So you ended up with: Where a difference can show up is that a lower number focal ratio scope will make it harder for an eyepiece to provide a uniformly good, in-focus image all the way across the field of view due to the steeper angle that the light arrives at the edges of the eyepiece with a low focal ratio scope, as compared to a high focal ratio scope. Eye relief of less than 10mm gets really uncomfortableyou tend to rub your eyepieces against the eyepiece or lens, and you have to hold your eye at just the right distance to keep from touching the lens. 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. A zoom eyepiece works like the zoom lens on a camera. To estimate the highest practical magnification for your telescope, you take the aperture in millimeters, mm, and multiply it by two. As a kid, I loved looking at the moon (which can be seen any time of day, regardless of ones bedtime) so make sure that the field of view is wide enough to see the whole shebang. If you are upgrading, avoid ones that say correct image as these add a prism system into the diagonal which can reduce the light transmission. Are Plossl eyepieces good? In the box you'll receive 5 1.25 eyepieces at following sizes, a 32 mm Plossl Eyepiece, 17 mm Plossl Eyepiece , 13 mm Plossl Eyepiece, 8 mm Plossl Eyepiece, 6 mm Plossl Eyepiece, a 2X Barlow Lens 1.25. Thus the 30 mm eyepiece in a 600 mm telescope produces 600/30 = 20X magnification while with the Barlow, we have 1800/30 = 60X. I had a newer - purchased in 2016 Meade 32mm (white lettering) that was no better than the older 32mm 4000. Customer reviews Average Rating (16 Reviews): Write a Review and share your opinions! Scott. An exit pupil larger than 6 mm may start to show a shadow of the secondary mirror. I am looking for as much as best I can buy. IF you like your Hyperions , you could get a 2 inch visual back and 2 inch diagonal / or 2 inch SCT diagonal and add the 31 or 36 Baader eyepieces in 2 inch . It also gives the widest possible exit pupil in my dob and SCT, very handy when using nebula filters. My Meade 4000 56 and 60 degree Meade Plossls are pretty sharp to my eyes and do pretty well for me. That's how cost-efficient the entire package is! Stargazinghelp.com 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 linking to Amazon.com. The one exception I would keep in mind would be when working with Newtonian reflector telescopes below F5. However, some lateral color error is apparent when looking at bright subjects, such as Jupiter or Venus, against a dark sky. https://www.amazon.com/Orion-8879-1-25-Inch-Enhanced-Telescope/dp/B000BMPBLK/ref=sr_1_8?crid=3KKUJRXYYN7DI&dchild=1&keywords=telescope+diagonal+1.25&qid=1610887695&sprefix=telescope+diagonal%2Caps%2C512&sr=8-8, Excellent article and very good recommendations. The Plossl eyepiece has 4 lenses, consisting of 2 identical double lenses. As you learn more about astronomy and you gain more experience with time, you may want to move to Plossls or even higher-quality eyepieces. 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. Ideally, you want a minimum of three eyepieces for (1) low power (2) peak visual acuity and (3) high-power viewing. I have seen some gatekeeping in this hobby about Kellners, and Im not sure I understand it. My 20, 26, and 32mm Plossls will probably stay around. I loved my Baader Mark-IV 8mm-24mm Zoom+Barlow combo in my 8" EdgeHD. It is pretty much worth it for everyone that has a telescope with a 1.25 inch focuser to have a 32mm Plssl. Once we are done, they will make sense. I dont know if they make anything like this anymore, but as a kid, I had plastic slides with images on them (the Milky Way, Horse Head Nebula, etc.) There was an old Meade Super-Plossl design that used an additional lens element and could reach a wider field of view. 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. Lets illustrate with an example using a 1200 mm FL telescope. Again, for no other reason than to compare it to the 17mm Hyperion and draw your own conclusions about Plssls. I still have it and still use it from time to time. 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. 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. I really like the simplicity and compactness of these simpler designs (ie: Plssls, Orthos, Kellners, etc). Note that as we get into the higher magnifications, the millimeter jumps between eyepiece focal lengths gets smaller. Some will offer longer eye relief which can be important to eyeglass wearers. A very good quality eyepiece for a reasonable sum. But the one I am recommending here is the Tele Vue Nagler series. I have CPC 925 and I currently own Hyperion 10mm, Hyperion 17mm and Celestron plossl 40mm. How important a consideration is this when deciding on an eyepiece? Below .5 mm exit pupil, floaters in the eye become more apparent and can be bothersome. What I can say is that, in general, eyepiece characteristics are inherent to the eyepiece. They are usable, but your eye will be extremely close to the top lens glass. Because some objects look better at low power, some at medium power, some at high power, and some at very high power. . Eyepiece Field of View Simulator astronomy.tools Field of View Simulator Change Telescope Reset Change Target Add Equipment 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. A couple of them felt fancier, but the jump in performance was either insignificant or non-existent. Save my name, email, and website in this browser for the next time I comment. It uses two symmetrical pairs of glass elements (one convex and one concave) to pass the light. The Hyperions work well in SCTs and you can't beat that large eyelens and eye relief ,JMO. You use the 8-24 zoom for the midrange. Plossl telescope eyepieces are the most popular type of eyepiece on the market.

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