I havent been into the hobby for long but my experience is in line with whats been said. I would suggest you also get a 2 low power wide view. But the longer FL units are certainly useful. These are two very important considerations when you are looking for eyepieces. In this article, were going to talk about what is a Plossl eyepiece, what are its components, how do they work, how many types are there and how youd buy a good Plossl eyepiece. If there is a local club, I would suggest you visit and consider joining. Age is not part of the equation. If that is the case, it will give me another reasonably good, inexpensive zoom to recommend to beginners. Wide view and well-corrected view, even in F5 scopes. An Austrian inventor Georg Simon Plossl came up with the Plossl eyepiece design in 1860. Ideally, you want a minimum of three eyepieces for (1) low power (2) peak visual acuity and (3) high-power viewing. In the early days of telescopic astronomy, refractor telescopes were designed with a single lens at the front and a single lens at the back. 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. 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. Orion Q70 38 mm works well. Explore Scientific 68 34 mm or ES 82 30 mm would also be good choices at a significantly higher price but with better edge correction. Yes, Plossl eyepieces are some of the most popular with amateurs and professionals alike. These lenses are connected together. This was very useful, I got a meade infinity 90mm ( after read the review here -. As we continue, what would you recommend adding first? Kellner eyepieces have 3 lenses cemented together and have a 35-50 degree field of view. Gold Line eyepieces also offer better eye relief than Plossl eyepieces, especially at the shorter focal lengths. Offered in both 2 and 1.25, these are excellent eyepieces. I purchased the Celestron Starsense 102mm refractor, focal length 660mm, stated highest useful magnification is 240x; it should arrive in about 2 weeks. The Orthoscopic Plossl eyepiece is for those who are interested in performing close-up work on specimens up to three inches away from them and still get high magnification. High-quality Plssl eyepieces provide high contrast and sharpness across the entire field of view. How do you focus - I would have expected helical focusers in the eyepiece holders but don't see any? condition as described, a good transaction. I was just wondering if plossls are still worth it or should get a better eyepiece in a 30mm range. This four-element Plssl design is the most popular eyepiece optical design that gives you excellent image quality, good eye relief, and a 50 to 56 degrees apparent field of view. Over $250, I will label premium eyepieces. Conclusion. 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. Looking forward to first use. But in this scope, the 32 mm doesnt work well. eyepiece shows signs of use with caps and bolt case, 32 mm Plossl very good cond. 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. https://www.amazon.com/s?k=Orion+Q70&ref=nb_sb_noss_2, Understanding Telescope Eyepieces- There are recommendations, based on budget, I generally use my 40 to search for DSOs so Ill probably replace that one at some point too. 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. Fully coated optics provide crisp and bright views of the cosmos. Plossl eyepieces have a wide FOV and are known for their clarity and sharpness. In most cases, these are eyepieces that are focused on wider AFOV or better correction for low focal ratio scopes. She has been looking at the sky for years and hopes to introduce more people to the wonderful hobby that is astronomy. 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. This saves money and helps you shop in an organized manner. 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 . 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. 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. Plossl eyepieces are typically used for observing and viewing things at long distances, but they can also be useful when using a telescope to provide both magnifying power and erecting the images. If well made, Plossls are bright, with good contrast, and a flat field, and excellent sharpness. That's how cost-efficient the entire package is! This is where the second formula comes into play. Personally I think they're still worth it. I think I will go for the BHZ because, as you say, I will be able to use it now and into the future. THANK YOU x 12! The only one not in the article is the Orion Q70 which is available in 38 mm, 32 mm and 26 mm. 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, The Explore Scientific 68 degree series would be better but at a much higher price. Free shipping for many products! I do not miss beating my eyelashes against a 9.7mm Meade Plossl that I used to own. It doesnt matter what type of telescope you have, as long as your scope takes these standard sizes. but the meat of the article is about understanding the considerations and specifications to know when selecting eyepieces. I am considering buying another eyepiece, maybe 6mm, and a Barlow, maybe 2x, to give me a wider and higher range of magnification. The 5-lens-element pseudo-Masuyamas that telesonic mentioned are/were fine eyepieces. They work great every day and get you where you want to go, but dont have what the higher priced models have. I would like to know what is best for a 7 year old that would be getting his first telescope. Plssl's were top of the line at one time, and are still being sold today, so that says something too. These are effectively simple designs like Plossls, Kellners, Konigs, and RKEs, with long focal lengths, that have a lens included to increase their focal length. However, your budget must guide your purchases. Gosky Plossl 40 mm Telescope Eyepiece - 1.25inch This is probably the worst eyepiece I can recommend. I took notes and now can shop with confidence Or take one of your eyepieces and measure across the bottom of the barrel. Also, atmospheric conditions can limit how much magnification you can use on a given night. You are talking about the technical details of how a Barlow works, and I agree. Omni 6mm Eyepiece - 1.25" Learn More. It may be a bit less than that in reality but for practical purposes that is close enough. Eyepiece Field of View Simulator astronomy.tools Field of View Simulator Change Telescope Reset Change Target Add Equipment If you just want a quick answer, skip to the conclusion at the end of the article. Have Any Astronauts Been Lost in Space Forever. This 10 mm Orion Sirius Plossl Eyepiece is a great, moderately high power ocular for observing small planetary nebulas and globular star clusters, as well as for planetary probing when seeing conditions don't permit higher magnifications. 8.5-ish mm (75x & 150x) In our example, we targeted 200X as the top magnification. All focal lengths offer 50 field-of-view except the 40mm which offers 42 This design has some advantages over other designs, such as the Kellner eyepiece or Orthoscopic eyepieces. 6.5-ish mm (100x & 200x) With an f/10 telescope, Plossls are as sharp as any other kind of eyepiece of the same focal length. The atmosphere is typically the limiting factor as we get to higher magnifications. These eyepieces are technically called Symmetrics, since Plossls can have different focal lengths for each doublet, but they are always marketed as Plossl. Omni 9mm Eyepiece - 1.25" Learn More. At least you'll have one budget eyepiece that will give you a larger part of the sky at low magnification. The ES is actually slightly cheaper than the Orion but my understanding from your reviews and replies is that ES might actually be the better eyepiece have I got that right? In 1860, Georg Simon Plossl invented the Plossl eyepiece. The Hyperions work well in SCTs and you can't beat that large eyelens and eye relief ,JMO. A wide range of focal lengths are available, all in 1.25-inch size. For me personally, even though I don't use glasses to observe, I still don't want to dig out the view through a plossl or ortho eyepiece which tend to have short eye relief. I had a newer - purchased in 2016 Meade 32mm (white lettering) that was no better than the older 32mm 4000. 70 mm scope will have a max of 140X for planning purposes. These companies rebranded them under their own names. You can find the eyepieces I use and recommend in this article. If we combine a Barlow with an 8-24 mm zoom eyepiece, we have an amazing range. There are so many others at comparable or higher prices, many of which are quite good and some rather poor. It's no surprise that the eyepieces in our Sirius Plossl line are our best-selling telescope 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. Some people have more than 6 and some have as few as 3. Now here is something that some of us classic scope nuts know - there are plossls, and there are plossls. Kellner eyepieces use three glass elements in two groups to minimize color fringing. It is pretty much worth it for everyone that has a telescope with a 1.25 inch focuser to have a 32mm Plssl. 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. Of course, the entire eyepiece must be manufactured and finished correctly to realize the design's full potential. 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. The "sharpness" you are seeing may well be better explained by the focal length of the ep than the quality of Plossls in general. 2. These have the advantage that the front section with the optics can be unthreaded and threaded on to the filter threads of a 1.25 inch eyepiece.
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