or a Baader Classic Ortho 18mm with both a 1.5/2x Barlow and 3x Barlow. I have CPC 925 and I currently own Hyperion 10mm, Hyperion 17mm and Celestron plossl 40mm. Comparing to Plossl eyepieces, Super Plossl is somewhat better for astronomy. Then set your maximum based on your aperture and split it up. So, I am going to organize the guide around five questions and four formulas. Celestron Omni Eyepieces: The Omni series is the most economical eyepiece offering from Celestron. It is all about your budget, your goals, and your objectives, as outlined in the article. The components of a Plossl eyepiece are the two groups of lenses. This series of eyepieces may provide better value in this price range. Here we get into the BMW, Cadillac, Porsche, and Ferrari of eyepieces. These are highly sought after ep's, and hold their value well. condition as described, a good transaction. 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. It uses two symmetrical pairs of glass elements (one convex and one concave) to pass the light. There are so many others at comparable or higher prices, many of which are quite good and some rather poor. Lets illustrate with an example using a 1200 mm FL telescope. Though not the Meade. I already got the 10mm super wide because of the added eye relief but at 15mm both have the same eye relief. Do you think the Baader Hyperion Zoom would work OK with the Skywatcher 150p? If you want a very good eyepiece with a bit wider field of view but are on a budget, these are very good choices. The computerized pad and motor work on AA batteries which can last you a few hours. Aspheric and Plossl Plossl are both lens designs that can be used in most telescopes. The Astrovid 40X60mm Zoom Telescope Camera Lens Kit is a great choice for those looking to get a variety of lenses, at different magnifications. Us big kids like zooms 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. Plossl and Kellner eyepieces are two very common examples of a simple eyepiece design, and they are probably the most common type of eyepiece you are likely to come across when eyepieces have been bundled with a telescope; they are also a very common aftermarket accessory. This is where the second formula comes into play. I found an ES 70 degree AFOV 35mm eyepiece and am wondering whether I should get this or the Orion 38 70. This means less time trying to figure out which way your images should be oriented before examining them. Choose three focal lengths. You could base this on 3, 4, 5, 6 or more focal lengths/magnifications. They include links to them where they can be ordered. EP-mm = magnification = afov 6mm Kellner eyepiece that I enjoyed a lot. Thanks for a very helpful guide. One learns by observing. It offers good color correction and high-contrast images. So plan this into such a purchase. - 32mm plossl. A Plossl eyepiece is one of the most decent general-purpose eyepieces that are available on the market. These and the essentially identical AT Paradigm are universally praised as good quality eyepieces with a wider 60-degree apparent field of view. One last thing, as a kid I used my telescope to watch squirrels and birds (which was interesting because the image was flipped around :-) so, you might consider getting an eyepiece that flips things the right way around so that navigating terrestrial nature is easier to manage. A 32mm Plssl is worth it. With your glasses on, you simply cant get your eye close enough to an eyepiece that only has 10 mm of eye relief. 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. There is the 56mm Meade Plossl which magically turns my short FL refractors into their own finder scopes. Comparing to Plossl, the Expanse eyepiece is a lot more expensive. Here we focus on becoming a knowledge hub for astronomy and astrophotography enthusiasts. 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! The telescope comes with a 2x Barlow so I was thinking of getting one of the zooms you recommended. (often referred to as Pseudo Masuyama). If well made, Plossls are bright, with good contrast, and a flat field, and excellent sharpness. Tele Vue has eyepieces that approach $1000. They also offer a generous 16 mm of eye relief which is most important in the shorter focal lengths. After these, we have mostly proprietary designs from various eyepiece companies. Typically, these will be 25 mm and 10 mm or something close to that. A Barlow lens can save you money and add flexibility. 70 mm scope will have a max of 140X for planning purposes. 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. The availability of good quality relatively wide field-of-view inexpensive eyepieces has kind of put them in the second tier of eyepieces, but they still hold their own in the longer focal lengths and excel if one does not demand a wide field-of-view. It is pretty much worth it for everyone that has a telescope with a 1.25 inch focuser to have a 32mm Plssl. I have the 38 mm and recommend it often. And that is pretty much what Super Plossl are today. Read the full Earning Disclosure here. They are also good for those who have astigmatism because they are designed to be more forgiving with eye placement. Goldline series of eyepieces provides the best value in this price range, better than Plossls. This may be enough for many eyeglass wearers. Other brands have joined and have used the Super Plossl label, but they all keep the original 4-piece design. 8.5-ish mm (75x & 150x) I took notes and now can shop with confidence However, your budget must guide your purchases. You can accomplish a longer eye relief by barlowing a longer f/l plossl, so that is something to think about as well. If you were considering a Meade Super Plossl, in that case just get the regular one also by Meade. Yes, the wider field of view of a Plossl is very helpful, but 40 degrees of Kellners isnt a soda straw (unless you are used to looking through very wide field eyepiece. 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. So you would have to test the set to see the actual result. They can also be found as Orion Expanse sporting a blue line rather than gold. If you are investing for the future, get the BH zoom. Many brands of eyepieces are available, including SVBony UltraWide, Astromania UltraWide Angle, Agena Astro StarGuider Enhanced UltraWide Angle and others. Their 50 to 52 degree AFOV is wide enough for general observing. We are a reader-supported organization. Orion Q70 38 mm works well. Eye Relief: This refers to how close your eye has to be to the lens in order to see the full field of view. Another way to look at it is that a 30 mm eyepiece in a 3X Barlow works like a 10 mm eyepiece. In retrospect, I should have included Tele Vue. https://telescopicwatch.com/best-telescope-mounts-for-astrophotography/, https://telescopicwatch.com/best-astrophotography-telescopes/, https://telescopicwatch.com/best-barlow-lens-and-how-to/, https://telescopicwatch.com/celestron-8-24mm-zoom-eyepiece-review/, 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, https://telescopicwatch.com/orion-skyquest-xt8-intelliscope-review/, https://www.rothervalleyoptics.co.uk/baader-hyperion-mark-iv-8-24mm-universal-zoom-eyepiece.html, https://www.amazon.com/s?k=Orion+Q70&ref=nb_sb_noss_2, https://telescopicwatch.com/best-telescope-eyepieces/, https://www.amazon.com/Orion-8829-Wide-Field-Telescope-Eyepiece/dp/B000M89H7C/ref=sr_1_2?dchild=1&keywords=Orion+Q70&qid=1606584502&sr=8-2, 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. Generally, dont mess around with solar projection unless youre okay with damaging the instrument. Plossl eyepieces are often included in better telescope packages as the starter eyepieces. but the meat of the article is about understanding the considerations and specifications to know when selecting eyepieces. It is as simple as that. It costs three to four times as much as the Celestron Zoom, but if you have the budget, this is the one to get. Is it just about finding and framing, or do wide fov EPs create a more immersive experience? Hayppy that now I have more facts to put in my decision. document.getElementById( "ak_js_1" ).setAttribute( "value", ( new Date() ).getTime() ); Our team of experts has reviewed and ranked 180+ telescopes based on price and quality. These are two very important considerations when you are looking for eyepieces. Wide view and well-corrected view, even in F5 scopes. I have personally tested a few Super Plossl and compared them to their regular counterparts by the same brand. Nice, thank you again for the additional inputs. If that is the case, it will give me another reasonably good, inexpensive zoom to recommend to beginners. Again thank you very much for all the information in the page, excellent notes. Their 50 to 52 degree AFOV is wide enough for general observing. Look at the apparent field of view specs and understand what this means for the field of view. There is always more to learn but it helps if you go in with a good base understanding, and that was my goal. SV207 30mm Super Plossl Eyepiece. Can you help me. If you want to observe the fine details of a specimen, Plossl eyepiece has a higher magnification than an ocular with lower lenses. 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. How do you focus - I would have expected helical focusers in the eyepiece holders but don't see any? Your email address will not be published. Just search on Astronomy Club and you will probably find one in your area. Combining a cheap eyepiece with a cheap barlow isn't a elegant solution. If there is a local club, I would suggest you visit and consider joining. https://telescopicwatch.com/best-telescope-mounts-for-astrophotography/, Then you look at the optical tubes. In some cases, an object is so large (i.e., the Moon, the Pleiades, the Orion Nebula, the Andromeda Galaxy) that a narrow field of view can only show you part of the object, whereas a wider field of view could show the whole object at the same magnification. Many compare these favorably to eyepieces that are much higher priced. These eyepiecesproduce a 'standard apparent feld of view' of between 50 and 56 with most set at around 52. 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 . 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. Ideally, you want a minimum of three eyepieces for (1) low power (2) peak visual acuity and (3) high-power viewing. Plossl eyepieces are great. Hi Ed, These eyepieces have about 35 to 50 degrees apparent fields of view and reasonable eye relief, though quite short for high magnifications. Gold Line eyepieces also offer better eye relief than Plossl eyepieces, especially at the shorter focal lengths. i still use the binos. Hello sir, thanks for your article its realy helpful. None of my fancy EPs have enough contrast for this application. 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. However, because they have more glass elements than other designs, like Kellners, their manufacturing becomes extremely important to get high-quality optics. 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. I expect such eyepieces are available but I have never seen or used one. 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. 4. I use some plssl eyepieces, since I still have quite a few in my kit, and yes, the others are correct. the shorter the focal length eyepiece = the shorter the eye relief. The stock 9 and 15mm Omnis were very good. The zoom can be used with any 1.25 focuser too. Save my name, email, and website in this browser for the next time I comment. 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. Your eyepieces do not need to be the same brand as your telescope. Ive added comments on where you may find and use them. Why two sizes? Youll find yourself adjusting these type of factors less than. It should list what size eyepieces you can use. 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. 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. Those that still come with Huygens and Ramsdens are generally cheap and low quality, since practically the only reason to use those designs in modern times is that they are extremely cheap to manufacture. Using this 40 mm Plossl eyepiece is an excellent way to get a wide field of view with your telescope. The only reason it's in this list because of its price and a long focal point. In my opinion, you do not. Meade telescope maksutov eyepiece ETX-105EC Super Plossl 6.4mm 1.25" w capsule. By default, expect a 40-degree field of view in a Kellner and a 50-52 degree field of view in a Plossl. Some will offer longer eye relief which can be important to eyeglass wearers. Free shipping for many products! 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. They have a narrow AFOV but have a reputation for being very sharp.. Kellners are often sold with cheaper, even more entry-level telescopes than Plossls. PS. That said, I should also tell you that not all Plossls are created equal. Excellent, thank you for the breakdown, very much appreciated. 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. Well-made lenses are expensive though, so in general the more lenses, the higher the price of the eyepiece. I think you will love it! But what are the differences between these two and how do you know which one to choose? Omni 40mm Eyepiece - 1.25" Learn More. I usually recommend a 32 mm Plossl type eyepiece as that provides about the widest view you can achieve with a 1.25 focuser. There are three types of Plossl eyepiece: the regular, Super, and Orthoscopic. I was looking on a OPT website and they have celestron 32mm and 15mm plossl. I have owned wider eyepieces, but ultimately I just prefer the Plssls (must be a mental defect). Just give yourself some time to learn the app and to understand the scope. Number of Lenses. For super Plossl eyepiece, the field of view is typically 40 to 60 degrees. 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 one aspect in which a Kellner can actually outperform a Plossl: eye relief. 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. Orion Sirius Plossl 1.25" eyepieces are ideal for all types of telescopes: reflector, refractor, and catadioptrics such as Maksutov-Cassegrains. The "sharpness" you are seeing may well be better explained by the focal length of the ep than the quality of Plossls in general. Omni 32mm Eyepiece - 1.25" Learn More. The views through it are very impressive, and it always amazes me when I get that one out. People may have heard, and rightly so, that Huygens or Ramsdens are crummy eyepieces and that they should get a Plossl instead, and they may believe the same applies to Kellners, but the truth is that Kellners are often good eyepieces. I am looking for as much as best I can buy. Eyepiece Field of View Simulator astronomy.tools Field of View Simulator Change Telescope Reset Change Target Add Equipment The TFOV of the Hyperion will be greater than the TFOV of the Plssl, but the magnification will be about the same. 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. > Click here to jump to the Best Eyepieces section. If you are on a strict budget, this is a good choice as a zoom eyepiece. In the beginning, you are not going to know what the atmospheric conditions might be in your area. If you were considering a Super Plossl made by an entry-level brand, just use those extra funds to instead get a regular Plossl made by a more reputable manufacturer. Omni 56mm Eyepiece - 2" Learn More. Kellner eyepieces work perfectly with small and medium-sized telescopes. Question: would it perform well with 1.5/2x and 3x Barlows? thanks Ed. As I discussed earlier, the zoom lets you explore your target over a wide range of magnifications without having to change eyepieces. Kellner and Plossl- both are two different types of eyepieces for telescopes. And since this article is intended as an aid to beginners rather than a rigorous optics lesson, I think the context I provided works well enough. Since there are so many different types of eyepieces available on the market, choosing the right one for your situation can prove to be a harrowing task. I have had a good experience with the SVBony brand and the Agena Astro brand. For our experience level, would you recommend changing anything right now? At that price point, it couldnt compete with other 5-element devices like Erfle and Nagler eyepieces that had better performance. short answer: yes. I think I will go for the BHZ because, as you say, I will be able to use it now and into the future. These are the best in optical performance and build quality. A 6mm Plossl has a tiny eye lens. Very worth it for me, as I like to use bino-viewers. This eye piece provides the maximum true field of view in the 1.25 inch format. Stargazinghelp.com is a knowledge hub for professional and amateur astronomy and astrophotography enthusiasts. If you upgrade the telescope or add a second one, the eyepieces will work on that telescope too. They are also good for those who have astigmatism because they are designed to be more forgiving with eye placement. Inexpensive Plossls that are manufactured using low-quality lenses are susceptible to internal reflections when viewing bright objects at high magnification. A couple of them felt fancier, but the jump in performance was either insignificant or non-existent. A Plossl eyepiece lens provides more eye relief than anything else out there! I have seen wider-field Plossls. SVBONY Direct . The atmosphere is typically the limiting factor as we get to higher magnifications. Focus on the magnifications rather than the mm of the eyepieces. These are considered to be the least expensive eyepieces for serious astronomy and are offered in focal lengths from about 6mm to 40mm. 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. However, I have eyepieces with much smaller exit pupils and they work fine. The ocular for your highest visual acuity - for viewing deep-sky objects and the like - should have an exit pupil around . I would recommend the Baader Hyperion Zoom for any telescope. No results, please adjust your filters. Thanks, Angelo M. You picked a great first scope. The combination of high-quality optics and accessible prices have made them the favorite design for amateur astronomers and even professionals. These tend to run toward the more expensive price range. In most cases, these are eyepieces that are focused on wider AFOV or better correction for low focal ratio scopes. We will now discuss the specifications of eye relief and apparent field of view. Outstanding job Jack. I had a newer - purchased in 2016 Meade 32mm (white lettering) that was no better than the older 32mm 4000. Celestron 2026 Erecting Prism Barlow Lens Set is another great choice for those looking to get a variety of magnifications. Even though there are more sophisticated types of EPs, Plossls hit the right spot between high-quality optics and price. 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. I am not aware of any such solutions for Newtonian reflectors. The image quality is very good and the additional field of view and longer eye relief makes them very comfortable to use. 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. The tradeoff was that each lens surface added another internal reflection, reducing contrast and adding glare. However, some eyepieces have an eye relief as short as 5 mm. Youd have to look into more complex designs which include a barlow lens, or simply use a longer focal length eyepiece with a quality barlow. I hear that, sometimes you find one that is sweeter than others. But the one I am recommending here is the Tele Vue Nagler series. A large field lens makes the ocular easy to look into. Orion Sirius Plossl 10mm telescope eyepiece 1.25" in very good to excellent 185794462395 Soft rubber eye guard that's custom fitted . Customer reviews Average Rating (16 Reviews): Write a Review and share your opinions! Or take one of your eyepieces and measure across the bottom of the barrel. They offer a 52-degree apparent field with clean, high-contrast images. Well, I'll just say it. They all work, but as you go up in price, you gain features or performance or both. Interesting points Philip. This is not a hard and fast rule, just a cautionary note. Very nice article. 2x Barlow We have compared Plossl against Kellner eyepieces in a previous article. The quality of a Plossl eyepiece completely depends on the brand and model, so be very careful in our selection. Over $250, I will label premium eyepieces. These are matters of individual preference and budget. 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. (Svbonys Plossls, for example, are optically identical to Orions Sirius Plossls). . Take a look at your manual or users guide. 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. Ah I see what you are saying, I had wondered whether this might have had an impact as Ive seen it mentioned before but dont fully understand it so will do some research, thank you . Our previous exchange convinced me to start out with an 80mm refractor. 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 . 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. This saves money and helps you shop in an organized manner. THANK YOU x 12! 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. Plossls are available from many suppliers in a wide range of focal lengths in 1.25 and 2 sizes. In order to help you narrow down your choices, weve created a short guide that can help you figure out what the best viable option is. 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. These companies rebranded them under their own names. (Focal ratio is a term that refers to the telescopes focal length divided by its aperture. This type of eyepiece provides you with wide-field views without any distortion due to its use as an achromatic lens system which reduces chromatic aberrations by combining two lenses made from different types of glass materials together on each surface. Astrophotography with Nikon D3200: Can It Be Better?
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