This can be very helpful for star hopping. The view being presented to your eye in a low power eyepiece minimizes everything from optical aberrations in the telescope, to distortions from thermals or atmospheric conditions. Glad you found it helpful. Plossl eyepieces are often included in better telescope packages as the starter eyepieces. Celestron Telescopes Reviews: Should you buy? - Little Astronomy This has nothing to do with your scope or eyepiece. In retrospect, I should have included Tele Vue. Very worth it for me, as I like to use bino-viewers. I possess an embarrassing array of fine eyepieces with names like Ethos and Nagler and Delos. They are not that expensive I would pay about $100 for both eye pieces. Cheap to try, and if you don't like it, easy enough to sell also. 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 Kellner eyepiece has 3 lenses, while a Plossl has 4. I see that there are some optical limits to how wide an FOV a 1.25 EP can manage at bigger (like 32mm) focal lengths. Focus on the magnifications rather than the mm of the eyepieces. What Is A Barlow Lens For A Telescope? 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. The bottom line is that it is best to have several magnification choices so you can optimize the view. 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. . But for the targets requiring higher mag Im still undecided between: 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. 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. Here's the short answer - Plossl eyepieces are generally better than Kellner eyepieces, but they also tend to be more expensive. A couple of them felt fancier, but the jump in performance was either insignificant or non-existent. 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. Buy Astromania 1.25" 4mm Plossl Telescope Eyepiece - 4-Element Plossl Design . Eye relief is the distance from the eye lens to your eyeball, and the higher the better (within reason). Pentax 10.5mm Eye Piece Excellent Condition (#314374986239) r***d (1910 . With a 130mm-F5 I would use a Plossl 32mm for its low-mag-wide-view. Put the zoom on the Barlow for the high range. I just added the 4.7 mm. 75-225X, 1.5X Barlow It may very well last you a lifetime and in the long term, you will definitely consider it to be a worthwhile investment. 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). These are exceptional eyepieces, and only available on the used market nowadays. Vixen NPL Eyepieces | First Light Optics I recently purchased the SVBony 7-21 zoom from Amazon. Other brands have joined and have used the Super Plossl label, but they all keep the original 4-piece design. The Plossl eyepiece has 4 lenses, consisting of 2 identical double lenses. I am not aware of any such solutions for Newtonian reflectors. 10mm Orion Sirius Plossl Telescope Eyepiece | Orion Telescopes This SVBONY eyepiece review should get you up to speed with the budget stargazing options. And I continue to read excellent reports on the AT Paradigm and similar under different labels. 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. While eyepieces with relatively complex, proprietary, or bespoke designs are becoming more commonly available in the beginner price bracket, there is often good reason to choose a much simpler design. If you are investing for the future, get the BH zoom. I think Id really enjoy a zoom for all the reasons you mention, But Im having a difficult time assessing how much weight to put on the field of view of given eyepieces. I continue to be very pleased with the ES82 eyepieces. Choosing the best eyepiece for you - Astronomy Now These companies rebranded them under their own names. 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. These eyepiecesproduce a 'standard apparent feld of view' of between 50 and 56 with most set at around 52. Lets illustrate with an example using a 1200 mm FL telescope. A typical zoom eyepiece has a focal length range of 8 mm to 24 mm. They have a narrow AFOV but have a reputation for being very sharp.. I do not miss beating my eyelashes against a 9.7mm Meade Plossl that I used to own. The "sharpness" you are seeing may well be better explained by the focal length of the ep than the quality of Plossls in general. Most telescopes come with one or two eyepieces. Plossls are the clear winner here in most cases, unless you have one of the wider-field 50-degree Kellners. Let's talk Barlows for idiots - Eyepieces - Cloudy Nights A very good quality eyepiece for a reasonable sum. 32 mm = 18.75X12 mm = 50X8 mm = 75X6 mm = 100X4 mm = 150X3 mm = 200X. With modern multi-coated optics that thwart internal reflections, Plossls and Kellners have little difference in glare or transmission/opacity. This determines how much light the telescope will gather. Thanks for going through the entire post. For modern eyepieces, the differences between Plossl and Super Plossl is going to depend on the manufacturer. I have a 4 element (traditional) and a 5 element 32mm Meade, both from the same era in Japan, and the 5 element is much better by quite a bit. . Tele Vue offers several series with apparent fields of view from 50 degrees to 120 degrees. 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. Being a total novice, I love the StarSense app and technology. I hope I can say that someday. Ive added comments on where you may find and use them. You can buy eyepieces specifically focused on a particular scope or you can buy eyepieces that you expect to use with this and all future scopes. The quality of a Plossl eyepiece completely depends on the brand and model, so be very careful in our selection. Was $38.99 - $99.99 Now $31.19 - $84.99 Compare Orion Edge-On Planetary 1.25" Eyepieces Celestron - 1.25" Eyepiece and Filter Accessory Kit - 14 Piece Telescope Accessory Set - Plossl Telescope Eyepiece - Barlow Lens - Colored Filters - Moon Filter - Sturdy Metal Carry Case. To estimate the highest practical magnification for your telescope, you take the aperture in millimeters, mm, and multiply it by two. 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. Because the eyepiece was still similar enough to a Plossl and still kept the symmetrical design, they called it Super Plossl. A Televue Plssl may be better than a generic one, but the difference is probably not worth the additional cost. I still use my 30mm Celestron Ultima fairly often with some of my telescopes. Aspheric and Plossl Plossl are both lens designs that can be used in most telescopes. 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. This is why we recommend you try to locate the object first at low power, then use a higher magnification if you likethe wider field of view on the sky provides more context in terms of asterisms and reference stars and makes it more likely that youll catch the object you are looking for. However, for your extra money you get the finest manufacture, the best polish and coatings available. This was my first zoom eyepiece and the one that caused me to fall in love with zoom. Hi Ed, 32 mm = 18.75X 16 mm = 37.5X (32 mm eyepiece with a 2X barlow), 12 mm = 50X (If you have a 25 mm that came with your scope, use Barlow for 12.5 mm), 4 mm = 150X (8 mm eyepiece with a 2X Barlow), 3 mm = 200X (6 mm eyepiece with a 2X Barlow), 24 mm = 25X (the low power end of the zoom), 8 mm = 75X (24 mm zoom setting in a 3X Barlow), 2.66 mm = 225X (8 mm zoom setting in a 3X Barlow), True field of view or FOV = Apparent field of view (AFOV) eyepiece / magnification. When you add eyepieces to your collection, you will want to consider what field of view you want and how much you are willing to pay for it. The generic GSO Plssl from many manufacturers, including Astronomics (Astro Tech) and Agnena Astro, is as good as the Celestron and a few bucks cheaper. 130 mm scope will have a max of 260X for planning purposes. This number can range from 30 degrees to 120 degrees. 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. no caps come in bolt case. In simple terms, high focal ratio scopes, say those over F6, tend to be less demanding on eyepieces than those below F6. This means less time trying to figure out which way your images should be oriented before examining them. Basic question - what is a Plossl eyepiece? - Getting Started General I guess my curiosity is mostly about the diagonal. 6.5-ish mm (100x & 200x) 17mm Plossl, unbranded, used, no caps, in bolt case; previous owner said it was a very good EP; $18 25mm Plossl, Orion Sirius, fully MgF2 coated on every air-to-glass surface; used; $23 (these are a step up from . With regards to budget, whatever works well and is on par with the quality & capability of the telescope. So save yourself this future unnecessary expense and just buy a Plossl. Celestron 2026 Erecting Prism Barlow Lens Set is well suited as an astronomical viewing lens kit or for enjoying terrestrial sights like nature walks, sporting events, and more! Have Any Astronauts Been Lost in Space Forever. They provide a range of magnifications with one eyepiece. She has been looking at the sky for years and hopes to introduce more people to the wonderful hobby that is astronomy. The longer FL Plossls (>15mm) have some distinct advantages over more complex designs without the major disadvantage of Plossls which is short ER. 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. Are Plossl eyepieces any good? - KnowledgeBurrow.com The Big Bang Optics 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 advertising and linking to Amazon.com. This is my all-time favorite eyepiece and the one I use more than all the others put together. Eye Relief: This refers to how close your eye has to be to the lens in order to see the full field of view. Simple Plosels work well and unless you have money burning a hole in your pocket, I would start with simple affordable eyepieces. I havent been into the hobby for long but my experience is in line with whats been said. This will become more apparent the wider the AFOV is of the eyepiece, in my experience. 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. Meade went back to the drawing board and they removed the fifth element, keeping the original Plossl design, however, they kept the Super Plossl brand and added some premium materials. We have a range of 32 mm to 3 mm. None of my fancy EPs have enough contrast for this application. Be aware of the focal ratio of your scope. However, the BH Zoom is by far my most used eyepiece. We will now discuss the specifications of eye relief and apparent field of view. In my scopes a simple zoom eyepiece like the Celestron 24-8mm or the Baader has replaced the higher powered plossls. If I had to give them all up and keep only one eyepiece, It would be the BH Zoom. Does having a 70 vs 52 fov make a noticeable difference for double the price? Well, I'll just say it. The 26 and 32 are usually the first ones I reach for. Despite this, I also have some Plossls which are indispensable. Also worth mentioning i wear glasses which I will wear while observing. 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 consider the Plossl to be the minimum standard for a good eyepiece. The Baader offers wider fov, but at quite the price premium. Also, children do not often have highly developed motor skillsso I would avoid the frustration of switching out eyepieces, and consider a zoom lens. Type above and press Enter to search. If you were considering a Meade Super Plossl, in that case just get the regular one also by Meade. the reality is that today's eyepieces are all quite good, particulalarly in an f/10 telescope. The image will be reversed left to right so you will need to get used to that. If we combine a Barlow with an 8-24 mm zoom eyepiece, we have an amazing range. The ES 82s are my favorite eyepieces, especially in the 1.25 format. 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. Does this sound like something you would recommend based on the telescope I have? Kellner and Plossl- both are two different types of eyepieces for telescopes. 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). At least you'll have one budget eyepiece that will give you a larger part of the sky at low magnification. In most cases, these are eyepieces that are focused on wider AFOV or better correction for low focal ratio scopes. You will get varying opinions on this but I would not worry too much about this. It is all about your budget, your goals, and your objectives, as outlined in the article. Depending on your budget, if you only have limited funds and are just starting to fill out your eyepiece collection I would go with the zoom, then zoom with Barlow. Explore Scientific, like many eyepiece providers, have higher-priced and budget lines. A Plossl eyepiece has a field of view thats very wide, so if youre looking at the full moon or some other object in space with it, chances are youll see the entire thing. The field of view of a p Plossl eyepiece is typically 60 to 120 degrees. A 32mm Plssl is worth it. You can still get eyepieces, but there are few choices. short answer: yes. If your telescopes focal length is different, just change the focal length in the formula. Theres a reason Plossls are usually kept at 52 degrees. For that purpose it is probably easier to find one to borrow. Higher values are slower and lower values are fasterthis is a holdover from camera lens terminology and has to do with exposure times.). Below .5 mm exit pupil, floaters in the eye become more apparent and can be bothersome. A super Plossl eyepiece is a top-performing eyepiece that can be used for a variety of tasks, from viewing objects in the distance to looking at microscopic things.
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