Note to spectacle wearers: Plssl eyepieces with 15mm and longer focal lengths are good choices for spectacle wearers. Note that we also gained a 16 mm magnification at no additional cost. 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 agree. If you feel the need to buy something now, consider this Orion diagonal. 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. Was $38.99 - $99.99 Now $31.19 - $84.99 Compare Orion Edge-On Planetary 1.25" Eyepieces Compared with a zoomable telescope eyepiece, they are pretty much the same in terms of the quality of the image. If you have a longer focal length telescope, your shortest focal length eyepiece will be a higher number than what I have shown here. By default, expect a 40-degree field of view in a Kellner and a 50-52 degree field of view in a Plossl. They are also really sharp. Basic question - what is a Plossl eyepiece? - Getting Started General I really like the simplicity and compactness of these simpler designs (ie: Plssls, Orthos, Kellners, etc). . You can add the specialty single FL eyepieces later if you wish. The 50 apparent field of view is plenty for me. The field of view of the eyepiece has a few effects when it comes to actually using it in the telescope. Explore Scientific, like many eyepiece providers, have higher-priced and budget lines. The way a Plossl eyepiece works is by using the convex lens and concave lenses to create an image that has both total magnification of what youre viewing, as well as erect images. I currently own a Mak127 ( that can't use 2"eyepieces) and a 80ED ( that one can hold 2"eyepieces). What follows are specific eyepieces that I have tried, own, or have read so many good reports about that I feel very comfortable recommending them. 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. With your glasses on, you simply cant get your eye close enough to an eyepiece that only has 10 mm of eye relief. We may earn commissions by recommending products on this website. What Is a Plossl Eyepiece - Planet Seekers philhas Members 61 459 Location: North East England THANK YOU x 12! I beleive this is the same as they ones you asked about. Do you think it would be sensible for me to look at getting a higher magnification specific eyepiece? In comparison, Aspherical lenses generally have no color distortion but might not work out well if the telescope user needs really high magnification. The magnification range that is appropriate to your scope. Are Plossl eyepieces any good? Another really helpful article, Ed. 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. These are things you will want to know and use. One learns by observing. FOR SALE! These are exceptional eyepieces, and only available on the used market nowadays. So, even if you have a Maksutov-Cassegrain scope, you should get a good experience from this eyepiece. We enjoy binoculars for the moon, but having never looked through another telescope, my kids and I do not know what internal reflection, ghosting, vignettes, or diffraction spikes look like! 50 150X, no Barlow For what it's worth: I believe the Omni 1.25 inch 2x Barlow is one of the Shorty Barlows manufactured by GSO. There is the 56mm Meade Plossl which magically turns my short FL refractors into their own finder scopes. But I think you will feel more confident about your purchases and be less likely to be disappointed if you read through the guide. A large field lens makes the ocular easy to look into. Achromatic vs Apochromatic refracting telescopes. A Televue Plssl may be better than a generic one, but the difference is probably not worth the additional cost. This SVBONY eyepiece review should get you up to speed with the budget stargazing options. there are of course options to plossls which are about the same prices as GSOs such as the BST Discoveries and TMB type eyepieces (new from Skies the Limit on Ebay) which have a wider field and better eye relief than plossls and are probably as good as most things non-premium. Over $250, I will label premium eyepieces. Hi Ed, that is really helpful sorry if this is a daft question but is the baader hyperion 2 or 1.25 or can it be both? In simple terms, high focal ratio scopes, say those over F6, tend to be less demanding on eyepieces than those below F6. Prices can run from $20 to $200 so the field is pretty broad. And the zoom provides every magnification in that range without having to change eyepieces. In my opinion, there are no wrong exit pupils. This is a good thing, because normally the shorter the focal length of the eyepiece, the less eye relief you have. Save my name, email, and website in this browser for the next time I comment. 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. They have good center sharpness but exhibit some field curvature and astigmatism. The quality of a Plossl eyepiece completely depends on the brand and model, so be very careful in our selection. Heres the short answer Plossl eyepieces are generally better than Kellner eyepieces, but they also tend to be more expensive. If you plan to go longer than that you can get an AC adapter or a power tank. You could base this on 3, 4, 5, 6 or more focal lengths/magnifications. Orion Sirius Plossl eyepieces are ideal for any type of telescope; refractor, reflector, or catadioptic. But the longer FL units are certainly useful. 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. It also produces an erect image, meaning you see what youre viewing rather than seeing everything upside down or sideways as some types do. Lets illustrate with an example using a 1200 mm FL telescope. 5 Best Telescope Eyepieces in 2023 [+Beginner's Guide] It comes with two Barlow lenses, one Newtonian eyepiece, and three Plossl eyepieces in the set. But dont fear that you will waste your investment as eyepieces are standard sizes. Major telescope brands such as Celestron supplies Kellner eyepieces with their r least expensive telescopes and still may. I had a newer - purchased in 2016 Meade 32mm (white lettering) that was no better than the older 32mm 4000. 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. So we say that an F5 scope benefits from better corrected eyepieces more than the F10 scope. Within the budget-friendly realm are the 6mm and 9mm Goldlines/Redlines (66-degree Ultra-Wide-Angle) for telescopes with a focal ratio of f/8 or longer, and the excellent 58-degree Planetary eyepieces, sold by a variety of sellers on Amazon and by Agena Astro, which come in a wide variety of focal lengths and are optically superb for their price. The Plossl eyepiece is a type of optical system that was invented by Ernst Abbe. They have decent eye relief and little curvature of field. Are Plossl eyepieces good? 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. Also, atmospheric conditions can limit how much magnification you can use on a given night. While I also have the Baader Hyperion Zoom, mentioned later, I continue to make use of the Celestron, especially in my smaller scopes. 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. Just start with 32 mm for your low-power eyepiece. I would expect it to be similar to the Celestron in image quality. Below 20 however, the eye relief makes it difficult for me and my glasses so Ive been replacing my 5-15 EPs with 82 degree EPs with more relief. A rubber safety cap protects the lens when not in use while also providing additional grip on this 35 mm Plossl eyepiece. However, you may see them at higher prices for the short term. A couple of them felt fancier, but the jump in performance was either insignificant or non-existent. The "sharpness" you are seeing may well be better explained by the focal length of the ep than the quality of Plossls in general. While it covers the same range as the Celestron zoom, it offers better optics, better mechanical operation, and a wider field of view. I dont have a specific diagonal to recommend and I am not aware of any specific issues with the one that is included with the scope. That's hard to beat IMO. Telescope Eyepieces Guide - High Point Scientific The downside to this type of lens is that they can cause chromatic aberration which creates colored spots around bright objects such as planets or stars due to the different wavelengths not going through equally. How important a consideration is this when deciding on an eyepiece? https://telescopicwatch.com/celestron-8-24mm-zoom-eyepiece-review/. Sorry but I am not offering a configuration and pricing service. short answer: yes. However, I have eyepieces with much smaller exit pupils and they work fine. Plossls tend to come with large, ground-standing Dobsonians, whereas youre more likely to find a Kellner sold with a tabletop Dobsonian. Despite the narrow field of view and short eye relief, it showed shockingly good views of Saturn, Jupiter, and even the Moon. Best Telescopes For 10 Year Old Kids: Reviews and Buying Guide, The Complete Guide to the Planets You Can See With a Telescope, The Best Barlow Lenses: Reviews and Buying Guide. Look at the apparent field of view specs and understand what this means for the field of view. A decent barlow might cost as much or even more. Then you can judge for yourself if it is worth it. Warranty Limited Warranty against defects in materials or workmanship for one year from date of purchase. Even though the design has existed for more than a century, it has stood the test of and is still today the standard against which other eyepiece designs are measured. Outstanding job Jack. Sooooo helpful! Eye relief is the distance from the eye lens to your eyeball, and the higher the better (within reason). Omni 56mm Eyepiece - 2" Learn More. https://telescopicwatch.com/best-barlow-lens-and-how-to/, Celestron 8-24 Zoom Review Customer reviews Average Rating (16 Reviews): Write a Review and share your opinions! In terms of eyepieces, my best advice is provided in the article. 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. Personally I think they're still worth it. They provide a range of magnifications with one eyepiece. Their eye relief is limited to about 70-80% of their focal length. Choose three focal lengths. In the case of the Celestron, you get all the focal lengths from 24 to 8mm in one eyepiece that costs $100. When a beginner is choosing eyepieces on a budget, there are a number of possible designs they may choose between. Those are significantly more expensive than the 1.25 focal lengths. 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. To say it a different way, in general, an F5 scope will place more demands on the eyepiece around the edge of the field of view than an F10 scope. Ive read, and re-read, and re-re-read this page. Now we just divide it up and fill in some sample focal lengths. The BHZ 2 Adapter has threads on it so you can attach filters to it allowing you to use 2 filters with the zoom. 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. I hear that, sometimes you find one that is sweeter than others. Very worth it for me, as I like to use bino-viewers. The components of a Plossl eyepiece are the two groups of lenses. I need some eyepieces with long FL for low magnifications. If you are completely new to stargazing, Kellner eyepieces are absolutely fine. 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. I also just bought the Celestron Starsense 102mm refractor (650mm focal length, f/6.5) as a first scope for me and my kids. They have a 60deg apparent field, long eye relief, adjustable eye shield and extremely well corrected. So its best for use during duller times when there isnt much brightness visible. A Kellner eyepiece has 1 double lens and 1 single lens. This Super Plossl design was better than regular Plossl eyepieces, but not by much. 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! I also really liked my E-Lux 32mm, a Kellner. Second? You alluded to them, but you never mentioned Tele Vue. Many Kellners are made with field stops opened up to 50 degrees, in which case it can truly compare to a Plossl in any telescope with a focal ratio of f/6 or slower. 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! These will eventually be used in an 8in dob whenever it arrives. These eyepieces are technically called Symmetrics, since Plossls can have different focal lengths for each doublet, but they are always marketed as Plossl. If you don't like the reflections, there really aren't many other budget options at its focal length beside a Plossl which will be super uncomfortable to use, or spending over $100 for something like a Meade UWA. Even though the design has existed for more than a century, it has stood the test of and is still today the standard against which other eyepiece designs are measured. Hayppy that now I have more facts to put in my decision. For astronomical observations, such as viewing craters on the moons surface from Earth, high-magnification models are preferred because they offer more detail.

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