In your case, I would do this for the 30 and the 20. Kellner vs Plossl - Comparison table. Plossl eyepieces have wider fields of view than Kellners. The Baader offers wider fov, but at quite the price premium. But you may only be able to achieve that rarely. Very worth it for me, as I like to use bino-viewers. So perhaps you do your line up like this. Thanks in advance I really appreciate it! Also, as the apparent field of view gets wider, the image will require more correction. This is your Lexus, Acura, and Infinity types that offer more features, better build, and a bit more polish. Sooooo helpful! I have a variety of eyepieces, including Explore Scientific and Meade 82 degree series so I have choices. Generally, Plssl eyepieces are best suited to Newtonian and fast telescopes. We may earn commissions by recommending products on this website. This would definitely matter to observers who wear eyglasses when viewing. As a result, this can cause aberrations in the image as you move from the center of the view toward the edges. Or, you can have three properly sized eyepieces and use a Barlow lens to achieve three more magnifications, which is usually a less expensive way to go. Are Plossl eyepieces good? Meade telescope maksutov eyepiece ETX-105EC Super Plossl 6.4mm 1.25" w It offers good color correction and high-contrast images. A typical zoom eyepiece has a focal length range of 8 mm to 24 mm. 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. Divide that by the magnification of that eyepiece in that scope. Gosky Plossl 40 mm Telescope Eyepiece - 1.25inch This is probably the worst eyepiece I can recommend. But, at least get the 32mm Plssl. That is up to you and your budget. I recently purchased the SVBony 7-21 zoom from Amazon. 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. What Is A Barlow Lens For A Telescope? 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. Hi Ed, 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. 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. What focal length eyepieces should I buy? To achieve a maximum of 200X (2X the aperture of 100 mm), we solve for the focal length. Also work very well with my binoculars that have removable focal reducers built into. I really like the simplicity and compactness of these simpler designs (ie: Plssls, Orthos, Kellners, etc). Etc.? I have an F4 Newtonian reflector and if I use an eyepiece of longer than 25 mm, an exit pupil of 6.25, I start to get a dark area in the center of the field of view which is a shadow of the secondary mirror. 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. It appears to be a custom-made 90 degree binocular built from two 90 degree diagonals and binocular-size objectives attached in place of the usual OTA. 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. I couldnt find any suggestions on your site about diagonal recommendations. Plossls provide very good eye relief for eyeglass wearers in focal lengths of about 25mm and longer. You can still get eyepieces, but there are few choices. We can see that 2 eyepieces have an advantage over 1.25 eyepieces when designers are making wide-view eyepieces. My Meade 4000 56 and 60 degree Meade Plossls are pretty sharp to my eyes and do pretty well for me. These are often compared to the higher priced offerings. My own lineup (with a C8) is 32mm Plossl, 18.2mm DeLite, and 10.5mm Pentax (the last one not chosen to match, but rather because it belonged to a deceased friend). 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. At 32mm, a Plssl will give you as wide a field of view as any 1.25mm eyepiece can. These sizes have become the industrys standard sizes. Offering a wide 43 apparent field of view, this 40mm Orion Sirius Plossl Telescope Eyepiece provides extremely sharp images of impressively high contrast. 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. https://telescopicwatch.com/best-telescope-eyepieces/. They have decent eye relief and little curvature of field. I am not aware of any such solutions for Newtonian reflectors. Press Esc to cancel. They are all made by the same OEM manufacturer. 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. If we combine a Barlow with an 8-24 mm zoom eyepiece, we have an amazing range. 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. This can be especially helpful in telescopes of focal ratios below F8. 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. It's no surprise that the eyepieces in our Sirius Plossl line are our best-selling telescope eyepieces. They have a narrow AFOV but have a reputation for being very sharp.. They also have good eye relief, making them comfortable to use for extended periods. If you are completely new to stargazing, Kellner eyepieces are absolutely fine. SV207 30mm Super Plossl Eyepiece. The BHZ 2 Adapter has threads on it so you can attach filters to it allowing you to use 2 filters with the zoom. I beleive this is the same as they ones you asked about. Once we are done, they will make sense. Understanding and using a Barlow Lens 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. I cant answer that specifically as I have no experience with that eyepiece in that scope. I have to say that your questions are answered in the article. Poorly chosen eyepiece might give you poor experience and sometimes even make stargazing difficult. https://telescopicwatch.com/best-barlow-lens-and-how-to/, Celestron 8-24 Zoom Review For our experience level, would you recommend changing anything right now? Goldline Eyepieces - The Definitive Guide - Telescopic Watch This type of design also helps provide for eye relief; its a better experience if your eyes. You can buy a range of these from Modern Astronomy. 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. I dont dabble in AP. I cannot thank you enough! By default, expect a 40-degree field of view in a Kellner and a 50-52 degree field of view in a Plossl. Plossls are extremely versatile and can be used for all use cases. Also, children do not often have highly developed motor skillsso I would avoid the frustration of switching out eyepieces, and consider a zoom lens. It is pretty much worth it for everyone that has a telescope with a 1.25 inch focuser to have a 32mm Plssl. So we say that an F5 scope benefits from better corrected eyepieces more than the F10 scope. Plossl eyepieces are great. These companies rebranded them under their own names. 2019-2023 Little Astronomy. At this point, a Plossl and a Kellner are so close in price and performance that you may as well get the Plossl. A rubber safety cap protects the lens when not in use while also providing additional grip on this 35 mm Plossl eyepiece. Your email address will not be published. Now put the zoom on a 3X barlow and you have: Using the zoom approach with a Barlow your eyepiece set would consisit of a 32 mm low power eyepiece. As to a more immersive experience, yes, I would say a wider FOV does provide a more immersive experience. Kellner vs Plossl Eyepiece - What is the Difference? 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! The Wiki article(s) were very good if anyone else is confused. With modern multi-coated optics that thwart internal reflections, Plossls and Kellners have little difference in glare or transmission/opacity. Now, for my one or two low power eyepieces, I also like to know the field of view provided by that eyepiece. Look those up, seeing and transparency in the context of astronomy. Plossls and Kellners, like other simple eyepiece designs, have moderate fields of view and tend to have short eye relief as you scale them down to shorter focal lengths. Tele Vue offers several series with apparent fields of view from 50 degrees to 120 degrees. With a 8" dobsonian, a 6mm is very versatile. A Kellner eyepiece has 3 lenses, while a Plossl has 4. A 20mm Plssl is probably worth it, if for no other reason than to compare the views it gives to the 21mm Hyperion you have. Good evening everybody. Heres the short answer Plossl eyepieces are generally better than Kellner eyepieces, but they also tend to be more expensive. Free shipping for many products! Telescope Eyepieces | Orion Telescopes: Shop Us big kids like zooms too. Choosing the most appropriate can completely change your experience in using telescopes. Kellner and Plossl- both are two different types of eyepieces for telescopes. The basic design hasnt changed much, but the real costs of manufacturing have dropped. In the next section, we will talk about the AFOV of an eyepiece. However, Orion has managed to make one that is quite compatible with most styles of telescope. One learns by observing. Meade telescope maksutov eyepiece ETX-105EC Super Plossl 6.4mm 1.25" w capsule. But the conventional way of expressing it is in terms of eyepiece focal lengths. Achromatic vs Apochromatic refracting telescopes. But the longer FL units are certainly useful. the reality is that today's eyepieces are all quite good, particulalarly in an f/10 telescope. In our example, we targeted 200X as the top magnification. Most modern telescopes use a focuser, or diagonal, that accepts 1.25 eyepieces. And you don't even have to get the full set if you don't want to. For visual use, 1.5X, 2X, 2.5X, and 3X Barlow lenses are common. Any 1.25 eyepiece will work with the BH Zoom 2 adapter. 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. A Barlow lens can save you money and add flexibility. We will now discuss the specifications of eye relief and apparent field of view. These "other" ones I speak of, aren't technically that, they are a 5 element eyepiece, of a different design. Even though there are more sophisticated types of EPs, Plossls hit the right spot between high-quality optics and price. This design features 4 lenses that are paired in two close-set doublets for the eye lens and the field lens. They deliver sharp images in almost all telescopes. They provide a range of magnifications with one eyepiece. As of the past couple years, it seems possible that the choice between Kellners and Plossls has been made for usyou either get what you get with your beginner telescope, or you will have to find a Plossl. Some brands will add better lens coating, darker edges, or a higher quality case to their Super Plossl products, but strictly for performance, there isnt a difference between the two. However, the BH Zoom is by far my most used eyepiece. But what are the other differences? Save my name, email, and website in this browser for the next time I comment. This is not a hard and fast rule, just a cautionary note. Choose three focal lengths. 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. Not everything in the sky benefits from high magnification. So, for your 30 mm, 82/60 = 1.36 degrees. Choosing the best eyepiece for you - Astronomy Now But what are the differences between these two and how do you know which one to choose? Now here is something that some of us classic scope nuts know - there are plossls, and there are plossls. 6mm Kellner eyepiece that I enjoyed a lot. All the rest will likely be 1.25. No price limit. As said, they are cheap to compare. 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. Lets illustrate with an example using a 1200 mm FL telescope. Some reviews also suggest replacing the diagonal. What I can say is that, in general, eyepiece characteristics are inherent to the eyepiece. Disclosure - If you buy something via our link, we may earn a commission with no additional expense to you. Does having a 70 vs 52 fov make a noticeable difference for double the price? A Plossl eyepiece lens provides more eye relief than anything else out there! Are plossl eyepieces still worth it? - Eyepieces - Cloudy Nights . Put the zoom on the Barlow for the high range. With your glasses on, you simply cant get your eye close enough to an eyepiece that only has 10 mm of eye relief. I have seen elsewhere discussions about the exit pupil of eyepieces. That can only be shown through actual testing. 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? This doublet design has an apparent field of view of 50-degrees or wider but can suffer from short eye relief making them difficult to use for some . We will use a 100 mm telescope with a 600 mm focal length that only takes 1.25 eyepieces. The stock 9 and 15mm Omnis were very good. Omni 56mm Eyepiece - 2" Learn More. Plssl eyepieces are affordable and they're outstanding additions to amateur telescopes. These and the essentially identical AT Paradigm are universally praised as good quality eyepieces with a wider 60-degree apparent field of view. Which is Stronger? A Plssl is probably as good as any 32mm eyepiece in a 1.25 inch focuser. The big problem with Plssls is that the eye relief is about 0.75 times the focal length. A Televue Plssl may be better than a generic one, but the difference is probably not worth the additional cost. Pentax 10.5mm Eye Piece Excellent Condition (#314374986239) r***d (1910 . Some will offer longer eye relief which can be important to eyeglass wearers. My Barlow is a 2X with a removeable Barlow element that can be screwed right onto an eyepiece giving a 1.5X effect. Then set your maximum based on your aperture and split it up. All are good eyepieces and diagonals, and would be excellent for star party use. Lenses are fully multi-coated for excellent light transmission and reduced internal reflections. Though not the Meade. When selecting the best eyepiece for you, consider: Eyepieces are standardized so whatever investment you make today, the eyepieces will continue to serve you in any future scopes you may own. I also really liked my E-Lux 32mm, a Kellner. As for Barlow Lenses, take a look at this article. So yeah, they are good.. and some are even better than others, and more collectible. However, your budget must guide your purchases. 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. Sometimes you want to see a wider field of view to locate an astronomical object like a nebula by using nearby stars. (often referred to as Pseudo Masuyama). i still use the binos. You can do that by using this long focal length eyepiece. Omni Eyepieces | Celestron Note that the full moon appears to be approximately .5 degrees across, so use that as a mental reference when looking at the numbers. That is a really interesting picture. Tele Vue has eyepieces that approach $1000. 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! There are three types of Plossl eyepiece: the regular, Super, and Orthoscopic. 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). 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. Would a higher magnification eyepiece help do you think or am I already pushing my telescope (XT8) to highest sensible magnification I can with BH zoom on setting 8mm and 2x Barlow? They also improve a bit when it comes to eye relief. 1.25" 6.3mm 32mm 40mm Plossl eyepiece set give you a good variation in magnification for a wide range of targets with extra sharpness and long eye relief. If we want to get VERY specific to a combination then inherent aberrations of this scope and that eyepiece could produce a unique result. They offer a 52-degree apparent field with clean, high-contrast images. The components of a Plossl eyepiece are the two groups of lenses.