These are things you will want to know and use. You really understood the material. 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. Again thank you very much for all the information in the page, excellent notes. Age is not part of the equation. Most telescopes come with one or two eyepieces, which gives you one or two magnification options. However, some eyepieces have an eye relief as short as 5 mm. But will the Baader CO with 1.5-2-3x Barlows deliver a visibly sharper and more contrast view of the Moon and planets than the zoom lens with a 2x Barlow, to compensate for the zooms convenience that is the question! 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. No, adapters are not needed but they may come in handy when you want to change the focal length or add other lenses such as filters or Barlow lenses. For visual use, 1.5X, 2X, 2.5X, and 3X Barlow lenses are common. I was looking on a OPT website and they have celestron 32mm and 15mm plossl. This determines how much light the telescope will gather. Also, children do not often have highly developed motor skillsso I would avoid the frustration of switching out eyepieces, and consider a zoom lens. To achieve these benefits, they may use special glass and more costly manufacturing. a breath of fresh air! I just added the 4.7 mm. The Wiki article(s) were very good if anyone else is confused. I started with the Celestron zoom. My friend has one and he really likes it, and it is his third telescope. 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). 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. Ive added comments on where you may find and use them. I think you will change your mind. 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. They also have good eye relief, making them comfortable to use for extended periods. You will see these under many brands, including Orion, Celestron, GSO, and others. If you want to observe the fine details of a specimen, Plossl eyepiece has a higher magnification than an ocular with lower lenses. 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. There was an old Meade Super-Plossl design that used an additional lens element and could reach a wider field of view. Cheap to try, and if you don't like it, easy enough to sell also. A very good quality eyepiece for a reasonable sum. Using this 40 mm Plossl eyepiece is an excellent way to get a wide field of view with your telescope.
Planetary eyepieces: Ploessl or Orthoscopic and which brand Nice, thank you again for the additional inputs. Are there any good low-cost 2 EPS out there? The longer FL Plossls (>15mm) have some distinct advantages over more complex designs without the major disadvantage of Plossls which is short ER. EP-mm = magnification = afov The TFOV of the Hyperion will be greater than the TFOV of the Plssl, but the magnification will be about the same. Visual astronomy is all about aperture, the more the better. Type above and press Enter to search. Thanks so much. Orion Sirius Plossl 10mm telescope eyepiece 1.25" in very good to excellent 185794462395 For it's cost, a 32mm Plssl eyepiece is hard to beat. Pentax K-70 Astrophotography: The Ultimate Camera on a Budget! THANK YOU x 12! Or take one of your eyepieces and measure across the bottom of the barrel. Goldline series of eyepieces provides the best value in this price range, better than Plossls. Note to spectacle wearers: Plssl eyepieces with 15mm and longer focal lengths are good choices for spectacle wearers. The stock 9 and 15mm Omnis were very good. 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. Those are significantly more expensive than the 1.25 focal lengths. If we want to get VERY specific to a combination then inherent aberrations of this scope and that eyepiece could produce a unique result. 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. 32mm (20x & 40x). Any 1.25 eyepiece will work with the BH Zoom 2 adapter. I took notes and now can shop with confidence They have a 50-56 degrees field of view, better eye relief, and cost more than Kellners. You also get 7 1.25 filters which include the following, #80A Blue Filter, #58 Green Filter, #56 Light Green Filter, #25 Red Filter, #21 . But, at least get the 32mm Plssl. Just give yourself some time to learn the app and to understand the scope.
No other type can compare with it when it comes to that quality. I have a custom-built 32mm Plossl that has been opened up as wide as possible to 60 or 70 degrees, for use as a 2 eyepiece, although in my 10 Dobsonian at f/5 the edge distortions prevent it from seeing much use. SVBONY Direct . Plossl eyepieces have an eye relief equal to about 80% of their focal length. Achromatic vs Apochromatic refracting telescopes. So yeah, they are good.. and some are even better than others, and more collectible. 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. Hi Ed, In this case, I am going to define this by the focuser and eyepiece size. The 26 and 32 are usually the first ones I reach for. short answer: yes. I can say that most of my plossls have been replaced by other eyepieces for various reasons. 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. Because the eyepiece was still similar enough to a Plossl and still kept the symmetrical design, they called it Super Plossl. Because some objects look better at low power, some at medium power, some at high power, and some at very high power. 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. You are talking about the technical details of how a Barlow works, and I agree. The price ranges we show here are the typical prices. I owned an XT8 Intelliscope which is the same optical tube on a PushTo mount. Or, if you are buying from an online like Amazon, then look at the eyepieces I recommend and see if any suit your needs. This is why many telescopes come standard with at least one Plossl eyepiece. You can still get eyepieces, but there are few choices. 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. Some optics brands have taken the next step and launched some eyepieces they have labeled as Super Plossl. I can recommend these with confidence. I dont think so. Hayppy that now I have more facts to put in my decision. Good quality. When discussing eyepieces, you will hear people comment on how well the eyepiece is corrected. With the XT8i I usually used the zoom configured with a 1.5X Barlow giving me a 75X to 225X which I found to be nearly perfect for that scope. Buy Astromania 1.25" 4mm Plossl Telescope Eyepiece - 4-Element Plossl Design . If you are on a strict budget, this is a good choice as a zoom eyepiece. short answer: yes. Features : 5 superior-grade Plossl eyepieces: 1.25-in, 4-element design with a 52 AFOV (32mm has 44)4mm, 6mm, 9mm, 15mm, and 32mm . Offered in both 2 and 1.25, these are excellent eyepieces. There are inexpensive adapters that will let you use standard 1.25 eyepieces in a .965 focuser/diagonal. A wide-angle view of 66 degrees makes it perfect for viewing large objects and even entire constellations while still being able to focus on smaller details with ease. 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. 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. A typical zoom eyepiece has a focal length range of 8 mm to 24 mm. 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. Celestron Omni Eyepieces: The Omni series is the most economical eyepiece offering from Celestron. Plossl against Kellner eyepieces in a previous article, 5 Budget Telescopes That Are Sneakily Powerful. 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. The only reason it's in this list because of its price and a long focal point. While it covers the same range as the Celestron zoom, it offers better optics, better mechanical operation, and a wider field of view. Ever since, I have been attempting to cram in every fact about the Universe, I can find into my head. Orion Sirius Plossl eyepieces are ideal for any type of telescope; refractor, reflector, or catadioptic. Poorly chosen eyepiece might give you poor experience and sometimes even make stargazing difficult. I also really liked my E-Lux 32mm, a Kellner. It also produces an erect image, meaning you see what youre viewing rather than seeing everything upside down or sideways as some types do. 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. In comparison, Aspherical lenses generally have no color distortion but might not work out well if the telescope user needs really high magnification. still, i somehow managed to avoid the eyepiece pitfalls when buying used off ebay. The first group is made up of a convex lens and concave lens, while the second one has four small cylindrical lenses that work together to magnify what you see through them for your viewing pleasure. But the longer FL units are certainly useful. Being a total novice, I love the StarSense app and technology. You can read a thorough review of Goldline eyepieces here. 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. As long as you take good care of them, Plossls can last you a lifetime, and you will be able to use them with your next telescope if you upgrade at some point. It is pretty much worth it for everyone that has a telescope with a 1.25 inch focuser to have a 32mm Plssl. Kellner eyepieces use three glass elements in two groups to minimize color fringing. It had one of the best fields, edge to edge, in my SCT that I've ever seen. This saves money and helps you shop in an organized manner. I have Celestron and the Baader Hyperion. The Plossl eyepiece has 4 lenses, consisting of 2 identical double lenses. In your case, I would do this for the 30 and the 20. I would expect it to be similar to the Celestron in image quality. But what are the other differences? They can also be found as Orion Expanse sporting a blue line rather than gold. It has made learning the Constellations and star-hopping more fun and engaging for my whole family exactly what I was hoping for. Kellners are the other popular design for amateur stargazing, go ahead and check out that article if you want to dive deeper into the subject. Also worth mentioning i wear glasses which I will wear while observing. Free shipping for many products! Most people will be fairly comfortable with eye relief of 12 mm or higher. 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. I have had a good experience with the SVBony brand and the Agena Astro brand. Here are a few types of eyepieces you may read about and their typical AFOV. Even if the scope comes with the more acceptable Kelner or . I believe the 5000 UWA's are good as well. Meanwhile, Plossl eyepieces are much more common and easy to find. Generally, to maximize the number of stars you see in an eyepiece with a given telescope, both the magnification and field of view should be maximized. Outstanding job Jack. Newer multi-coatings are better, I suppose, but newer does not always mean better in the ocular game. I usually recommend a 32 mm Plossl type eyepiece as that provides about the widest view you can achieve with a 1.25 focuser. Read our full affiliate disclosure here. If you look up transparency and seeing in the context of telescopes you can learn more about how atmospheric conditions will affect what magnifications you will choose on any given night. Every review suggests replacing the 10mm Kellner eyepiece (and possibly 25mm Kellner) that comes with it. 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. Stargazing Help is a participant in Amazon Associates program. They have good center sharpness but exhibit some field curvature and astigmatism. Imagine you are looking at the moon with each of these eyepieces and consider what you would see. That is a really interesting picture. As we go up in price range, we gain capabilities that may not be immediately obvious. Glad you found it helpful. Since it's such a popular eyepiece and allows for quality, planet-viewing, that makes it a great instrument for attracting newcomers to the hobby, especially children. So, for your 30 mm, 82/60 = 1.36 degrees. This will become more apparent the wider the AFOV is of the eyepiece, in my experience. The BH zoom is optically a 1.25 eyepiece. 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. Plossls are the clear winner here in most cases, unless you have one of the wider-field 50-degree Kellners. 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. SVBONY Telescope Eyepiece Set Telescope Accessory Kit with 2x Barlow Lens 4 Element Plossl Design 6.3mm 32mm 40mm for Astronomical Telescopes. You see the object in a wider expanse of space with more stars. By having a range of magnifications, you can optimize the image, which means you need more eyepieces. I hope I can say that someday. Orion Sirius Plossl 1.25" eyepieces are ideal for all types of telescopes: reflector, refractor, and catadioptrics such as Maksutov-Cassegrains. . The Regular Plossl eyepiece is made to be a basic type of scope for viewing objects that are nearbysay within two feet or so from where youre looking through it. These eyepieces are technically called Symmetrics, since Plossls can have different focal lengths for each doublet, but they are always marketed as Plossl. Your email address will not be published. Most modern telescopes use a focuser, or diagonal, that accepts 1.25 eyepieces. The focal length range for 1.25 Plossls is about 6mm to 45mm. There are certainly much better options out there but at a significant cost. They have a 60deg apparent field, long eye relief, adjustable eye shield and extremely well corrected. However, I have eyepieces that have larger exit pupils than 7 mm and they work well. At one time Plssls were premium eyepieces. However the package includes a 1.25 to 2 adapter so if you have a 2 focuser you can treat this like a 2 eyepiece leaving the adapter normally included with the scope for use with other 1.25 eyepieces. At least you'll have one budget eyepiece that will give you a larger part of the sky at low magnification.