- List of 10 Best Telescope Eyepieces
- 1) Orion 08890 1.25-Inch Premium Telescope Accessory Kit
- 2) Celestron 8 to 24mm 1.25 Zoom Eyepiece
- 3) Celestron Eyepiece and Filter Kit – 14 Piece Telescope review
- 4) Gosky 1.25-Inch Premium Telescope Accessory Kit review
- 5) Celestron X-Cel LX Series Eyepiece review
- 6) Tele Vue 13mm Ethos 2″ / 1.25″ Eyepiece review
- 7) Meade Instruments 1.25-Inch Xtreme Wide Angle Eyepiece
- 8) Gosky Telescope 1.25″ Super Plossl Eyepiece Kit
- 9) Explore Scientific Eyepiece
- 10) Orion Sirius Plossl Telescope Eyepiece
- How to Choose the Best Eyepiece – Buyer’s Guide
- Frequently Asked Questions (FAQ)
- Q- What is the purpose of an eyepiece?
- Q- What is the difference between Plossl, Ramsden and Huygens eyepiece?
- Q- What is the advantage of an eyepiece over a single lens?
- Q- What exactly is a chromatic aberration in a telescope eyepiece?
- Q- What do the markings on an eyepiece mean?
- Q- Do eyepieces come in different sizes?
- Q- Are the larger eyepieces better quality than the smaller sizes?
- Q- What is Eye Relief? Is it important?
- Q- What does it mean when an eyepiece says it has “coated optics”, & “Parafocal”?
Experts always suggest carrying an additional set of eyepiece with your old or new telescope. They are the most important accessory for a telescope, no telescope works without an eyepiece.
Most companies provide eyepieces with their telescopes but the main problem with those is they are of cheap quality and do not do full justice with the telescope. High quality, well-made eyepiece can dramatically increase the performance of your telescope.
So, if you are in a mood of getting some additional eyepiece for your lovely telescope you are at the right place. Here, our team has recommended Best Telescope Eyepieces available in the market from different brands
List of 10 Best Telescope Eyepieces
Let’s get started with the “Best telescope eyepieces list” presently available in the market today.
This List covers only Plossl eyepieces because they are known as all-rounder eyepieces. They have four-element design and give better results when used with Reflector, Refractors and gives great results when combined with telescopes having a fast focal ratio like Catadioptric telescopes.
1) Orion 08890 1.25-Inch Premium Telescope Accessory Kit
This Orion eyepiece accessory kit includes 5 different Sirius Plossl eyepieces having focal length 6.3mm, 7.5mm, 10mm, 17mm, and 40mm. They all are fully coated with magnesium fluoride on every air to the glass surface and offer 52degree wide field of view.
The lens is mounted in black-anodized aluminum housing where edges are blackened. This results in clear, sharp and high contrast images. 1.25-inch diameter aluminum barrel fits perfectly into 1.25-inch or 2-inch (with adapter) easily. Built in rubber eye guard helps to position the eye properly and also block out ambient light.
The package also includes 6 filters where 5 of them are a planetary filter and one is moon filters. Orion has also included high-quality multi coated 2x Barlow lens in this package. Great way to double the power of each eyepiece without having to buy twice as many eyepieces.
Priced around 180$ it is one of the best eyepiece kits any astronomer should have. Eyepieces in this package cost over 800$ if purchased separately.
2) Celestron 8 to 24mm 1.25 Zoom Eyepiece
Celestron 8mm-24mm zoom eyepiece has a fully multi-coated optics that provide a crisp and clear image of an object. Instead of purchasing three to four different eyepieces of focal length between
8mm and 25mm we can get a variety of magnification in a flash simply by turning the rubberized eyepiece barrel. At the time of observing, there is no need to physically change the eyepiece just rotate the eyepiece barrel slowly and stop when the desired view is achieved.
24mm focal length gives 60-degree wide field of view that helps in spotting the object and high 8mm focal length gives the magnified view of the object when inserted into 1.25” focuser. Fast, high-quality eyepiece compatible with any telescope that accepts 1.25” eyepiece.
3) Celestron Eyepiece and Filter Kit – 14 Piece Telescope review
While using a telescope, having the right eyepiece is pretty important. Instead of just using a single eyepiece, today we would shed some light on the 14 piece kit.
- Plossl eyepieces: 1.25 inches, 5 eyepieces
- Barlow 2X lens
- Filters: 6 colored eyepiece filters
- Carrying case: aluminum carrying case
- Additional filter: Moon filter
- Weight: 3.38 pounds
The best thing about this eyepiece kit is that it consists of 5 superior grade Plossl eyepieces. The eyepieces are multicoated which ensures that you are able to get proper contrast as well as resolution.
In addition to the normal eyepieces, the kit also consists of Barlow lens which are 2 in number. The Barlow lenses are 1.25 inches. The Barlow lens also comes with 10 different power combinations. This ensures that you are able to easily use it in the combination which is perfect for you.
The 6 colored eyepieces which come along with the kit makes it even more versatile and makes it easier for you to add the type of filter which you want. The 1.25 inches of moon filter is another addition to the kit.
The image quality through the eyepieces is pretty strong. You would be able to magnify the telescope quite easily. You need not worry about dislodging of the eyepieces either. Also, since the kit provides you with a vast variety of eyepieces, you can be sure that you would be able to easily find a few which are usable for you. Therefore, you would not have to cherry pick eyepieces with this kit.
The carrying case which comes along with the kit is pretty sturdy. Since it is made from aluminum, you can be sure that it would last for a long period of time without any issues. This makes it easier for you to carry the entire kit. Also, the carrying case has been fitted with a proper fixture to accommodate all the lenses and eyepieces. This ensures that you would not have to worry about breakage.
So, if you are interested in astronomy and are looking for a telescopic kit, this 14 eyepiece get is one of the perfect options for you. It consists of plenty of versatile lenses and filters which make it easier for you to view your favorite planetary positions without any distortion.
4) Gosky 1.25-Inch Premium Telescope Accessory Kit review
Are you looking for a complete telescopic accessory Kit? Are you looking for a kit that consists of eyepieces as well as filters? If yes Gosky 1.25-Inch Premium Telescope Accessory Kit is the perfect option for you.
- Number of eyepieces: 6
- Field of view of eyepieces: 52°
- Number of Barlow lens: 2, 1.25 inches
- Number of filters: 7
One of the best things about this telescopic accessory Kit is that it consists of 15 different pieces. This ensures that you are able to easily get the entire equipment in a single go without having to buy it separately.
The eyepieces come with different measurements which are 6 MM, 8 MM, 12.5 MM, 20 MM, and 40 MM. This ensures that you are able to easily observe the planetary as well as solar observations without any distortion. It is good enough for deep sky target spotting as well.
In addition to these, there are 5 color planetary filters as well. This ranges from red, blue, orange, green as well as yellow. Also, there is an additional cone filter as well. This makes it easier for you to observe any planet’s satellite which you desire to observe without any kind of distortion.
The number of Barlow lenses is 2. All the lenses are multicoated. In order to store the entire telescopic it, you would be getting a silver carrying case. This ensures that you are able to carry it around quite easily wherever you go. This also keeps the lenses, as well as eyepieces, protected.
Thus, when you’re looking for a complete telescopic kit along with the lenses as well as filters, the Gosky 1.25-Inch Premium Telescope Accessory Kit is certainly one of the best options.
As it comes along with the carrying case as well it makes it easier for you to carry it along with you wherever you go. Also, the quality of the gear in this equipment is pretty superior as well which would help you in observing astronomical bodies with ease and without any kind of distortion.
5) Celestron X-Cel LX Series Eyepiece review
Celestron X-Cel LX Series Eyepiece standouts is one of the most versatile eyepieces which you can get your hands on. In addition to that, it is also pretty focused which provides you with some great clarity.
- Size options: 1.25 inch 2.3mm
- Weight: 9.6 ounces
- Field of view: 60°
The very 1st thing about this eyepiece which you would notice when you use it is the wide field of vision. It provides you with the field of vision of 60°. This ensures that you are able to easily see through the night sky without having to move your telescope by a significant amount. This helps you in focusing on a certain part.
In order to provide you with the sharper images, it is multicoated and consists of 6 different elements. This ensures that the level of clarity which is provided to you is almost unparalleled.
When you’re exploring the nighttime sky in order to observe astronomical phenomena, clarity is pretty important. With the help of this lens, you would have no problems at all when it comes to clarity.
The eyepiece can be easily extended. The main advantage of this is that even people who are wearing spectacles would be able to use the eyepiece quite easily. The extendable eyepiece also allows you to focus in a certain direction.
Many times, during handling, eyepieces can easily slip from your hand. This is prevented in this eyepiece with the addition of a rubber grip. This ensures that you are able to hold the eyepiece quite easily without the risk of it falling off. Even when you’re using it in moist conditions, you would be able to get an excellent grip.
The eyepiece is parfocal which ensures that very little focusing is needed even when you’re changing the power of the eyepiece. This makes it much easier to use.
So, if you’re looking for an eyepiece which is not only providing you with an extended field of vision but also is easy to use along with pretty sharp focus, the Celestron X-Cel LX Series Eyepiece is one of the best options for you. The excellent grip ensures that it is equally easy to use.
6) Tele Vue 13mm Ethos 2″ / 1.25″ Eyepiece review
The right telescopic lens can easily help you in expanding your field of vision. A telescope without the right lens is not at all useful. Owing to this very reason, when you’re searching for the telescope lenses, it is important to choose the right one carefully. You have to not just look at the size of the telescopic lens but also look into the field of vision.
- Field of view: 100°
- Focal length: 13 MM
- Barrel size: 2 inches-1.25 inches
Tele Vue has carved a stellar reputation for itself when it comes to telescopic lenses. This one is no different. It provides you with complete field and sharpness. This ensures that you are able to observe the astronomical phenomena quite easily.
Moreover, while observing the phenomena in space, you would be at complete ease as, the telescopic lens is designed to provide high resolution.
It is the most expensive eyepiece featured in this list but there is a reason for that, the lens is designed in such a way that it provides you with high contrast which further expands the clarity as well as the ability to detect various different phenomena.
One of the main advantages of using this lens is that it is designed in such a way that people who have highly sensitive eyes can also use this lens. This lens incorporates the low pupil density feature which ensures that you would be able to use it even during the daytime.
Moreover, angular magnification is possible as distortion correction factor is introduced in the lens. This ensures that whether you’re looking for lateral details or angular details, you would be able to view them easily with the help of this lens.
In addition to that, the field curvature of this lens is much more accurate as compared to some of the others. With the vision field of 100°, it is much more accurate and versatile as compared to some of the other lenses available out there.
So, if you’re looking for a telescopic lens that can be used during the daytime as well as the night time, this one should definitely top your list.
It provides you with the perfect balance between sharpness as well as angular magnification which is a real balance to achieve.
7) Meade Instruments 1.25-Inch Xtreme Wide Angle Eyepiece
- Field of view: 82°
- Focal length: 5.5 mm
- Barrel size: 1.25 inches
This eyepiece has a large apparent field of view of 82 degrees, making the viewer feel that he or she is looking out into space rather than looking through a tube. It also has 13.2mm eye relief which is a longer eye relief, with a sturdy eye cup.
It also has tremendous clarity and sharpness with low chromatic aberration. This makes it an extremely value-for-money piece of high quality.
The eyepiece has a rubber textured collar which allows users to have a secure grip when handling it and reduce the possibility of dropping the eyepiece. It is parafocal with the entire Series 5000 line, providing the convenience of allowing the user to change eyepieces with little to no refocusing.
It also has a standard 1.25” barrel size to fit most accessories. However, it does have excessive barrel grease that gets exposed when you twist up the eyecups and it might feel icky when you touch it.
Some people also report that the grease is quite thick which makes it stiff to adjust. It’s also pretty big and heavy which could be an issue with a smaller telescope.
8) Gosky Telescope 1.25″ Super Plossl Eyepiece Kit
- Field of view: 52°
- Focal length: 26mm, 32mm, 40mm
- Barrel size:1.25 inches
- 4-Element Design
This Gosky Telescope Plossl Eyepiece kit comes with 3 eyepieces of 26mm, 32mm and 40mm with a 52-degree field of view. It is a fantastic starter kit for new astronomers with sharp image quality. The official description states that the eyepiece is able to view broad-field lunar details, cloudy nebulas and medium star clusters.
It has a 22mm eye relief and blackened lens edges to improve the contrast of your image and decrease light scattering, with fold-down rubber eyecups to remove stray light. They are also multicoated to maximize the transmission of light.
That being said, you do get what you pay for. These eyepieces are great for anyone on a budget but don’t provide as much clarity and sharpness as the higher-end eyepieces.
9) Explore Scientific Eyepiece
- Field of view: 82°
- Focal length: 8.8 mm
- Barrel size: 1.25 inches
- Waterproof Argon Purge
The Explore Scientific eyepiece comes with a fantastic 82-degree apparent field of view to make you feel immersed in space as you can see more galaxy detail. An added benefit is that it allows you to employ averted vision, meaning to gaze at an object slightly to the side instead of gazing at it directly.
This allows a person to see fainter images because the image will be seen from the part of the eye that is more sensitive to light. The eyepiece also produces an impressive image quality that is very clear and sharp and provides excellent value-for-money.
It has an 8.8mm focal length, and 15.6mm of eye relief. Regular 9mm Plossl eyepieces have 6mm of eye relief, so the 15.6mm makes the telescope extremely comfortable to use especially if you wear spectacles.
These eyepieces are waterproof, which is great if you’re viewing in a place with heavy dew. They are also purged with argon gas to prevent moisture from accumulating in the eyepiece and creating fog or allowing mold to grow.
The Explore Scientific eyepiece has an Enhanced Multilayer Dispersion coating with darkened lens edges to keep scattered light out. However, it is relatively more expensive compared to other telescope eyepieces.
10) Orion Sirius Plossl Telescope Eyepiece
- Field of view: 52°
- Focal length: 32mm
- Barrel size: 1.25 inches
The Orion 8728 32mm Sirius Plossl eyepiece has an apparent field of view of 52 degrees and has a 1.25” diameter, and offers wide views of space. Users can view sharp images of the Moon, the planets and other deep space objects with this eyepiece. The eyepiece produces clear images with good contrast and is a great purchase for both beginners and experienced home astronomers.
It is also multi-coated to reduce scattered light and increase the contrast of the image seen through this eyepiece. The eye relief is long and comfortable and this eyepiece works with all types of telescopes including reflector, refractor and Cassegrain telescopes.
How to Choose the Best Eyepiece – Buyer’s Guide
Let’s try to understand how eyepiece works and how it affects the magnification power of the telescope.
1) Highest useful magnification
Before selecting the right eyepiece for our telescope, we need to first find out what is the highest useful magnification of the telescope. Sometimes beginners tend to get confused that magnification is the most important factor in the telescope, they buy their telescope thinking more the magnification better will be the power
e.g. 500x magnification is good than 300x in a 5-inch telescope.
But that is not correct, there is an upper limit to any telescope, if you push the telescope above that limit the result will be a poor and blurry image.
How to determine the Highest useful magnification (Upper limit)?
To determine the highest useful magnification of telescope just multiply the telescope’s aperture (inch) with 50.
e.g. Highest useful magnification of telescope in normal condition of 5” telescope will be:-
Magnification= 5” (aperture) x 50 =250X.
2) Focal length
Focal length is the distance from the center of lens or mirror to the point of focus. The longer the focal length of the device the more powerful it is. It is measured in mm.
Choosing the right Eyepiece
Now to choose the right eyepiece, we just have to keep 2 points in mind. Highest useful magnification (already discussed) and eyepiece power.
Eyepiece power is calculated by dividing the focal length of the telescope with a focal length of the eyepiece.
Eyepiece power= Telescope (focal length) / Eyepiece (focal length)
e.g. Telescope having focal length of 1000mm combined with 25mm eyepiece gives 40x power. Same way, 10mm eyepiece with the same telescope will give 100X power.
Eyepiece Power= 1000/25 = 40x
Thus, using a different eyepiece of different focal length will result in different magnification.
We can play with different eyepieces as long as we are not crossing highest useful magnification of the telescope.
Try high magnification for the moon and nearest planets, medium magnification for brighter objects like galaxies or nebulas and low power eyepiece for locating deep sky objects because they give the widest field of view.
3) Misconception about Eyepiece
There is one big misconception about the eyepieces is, if we have a telescope of XYZ brand then we can only use an eyepiece of same XYZ brand with that telescope. This is totally wrong if we have Celestron telescope we can use the eyepiece of Orion or vice versa as long as the barrel size of focuser matches with the size of the eyepiece.
In modern astronomical telescope 1.25” is universal standard size, some telescope comes with 2” size but they also provide an adapter that allows using 1.25” eyepieces.
4) Barlow lens
Barlow lens is another important accessory that sits between focuser and eyepiece. This affordable accessory can double or triple the power of your eyepiece.
e.g. 2x Barlow lens when combined with 25mm eyepiece and 1000 telescope focal length give 80x power.
Power= 2x (1000/25) = 80x.
Frequently Asked Questions (FAQ)
Q- What is the purpose of an eyepiece?
A- Telescopes gather light and bend the rays to create a real image at the focal point of the lens. Our eyes also focus light, and need to focus on a virtual image. Hence, the eyepiece, when placed at the focal point of the telescope lens, serves the purpose of creating a light beam that enters our eyes. Our eyes then converge the light beams to create an image that we can see.
Eyepieces are also important in determining the magnification of the image and the field of vision of the telescope.
Q- What is the difference between Plossl, Ramsden and Huygens eyepiece?
A- Plossl eyepieces have two achromatic doublets that have their biconvex crown elements facing each other. The space between the lenses is 20% of the sum of the focal lengths. Plossl eyepieces have wide fields of vision and long eye reliefs.
The Plossl is the most common eyepiece in astronomy telescopes and was developed by Georg Simon Plossl in 1860.
Ramsden and Huygens are much older eyepiece models and largely used in inexpensive telescopes due to the aberrations and narrower fields of vision. Ramsden eyepieces have two plano convex lenses with equal focal lengths.
The space between the lenses is 2/3 the sum of the focal lengths of the two lenses and the plane surfaces face away from each other. It has less spherical aberration than the Huygens eyepiece, but has very short eye relief and so scratches and dirt may appear in the field of vision.
It is used in long focal ratio telescopes with a reticle and was developed by Jesse Ramsden in the 1782.
Huygens eyepieces have two plano convex lenses with the curved surfaces facing the objective lens. The space between the lenses is half the sum of the focal lengths of the two lenses, and the two lenses have focal lengths in the ratio of 3:1 (field:eye).
This eyepiece has high spherical aberration and field curvature. It is largely used in high focal ratio refractors and was developed by Christiaan Huygens in 1662.
Q- What is the advantage of an eyepiece over a single lens?
A- An eyepiece does not have the optical aberrations a single lens has. For example, a single lens has chromatic aberration meaning that it creates colored edges in its images.
An eyepiece reduces this issue by using a combination of different lenses. An eyepiece also has a much wider field of vision compared to a single lens.
Q- What exactly is a chromatic aberration in a telescope eyepiece?
A- Chromatic aberration occurs when color fringes appear in a telescope image. This is caused by the fact that different colors of light refract and bend differently when viewed through a lens. Hence, color appears at different places in the image which also causes blurring.
There are two kinds of chromatic aberration which are longitudinal aberration and lateral aberration. In longitudinal aberration, different wavelengths of light cause light to refract differently so all the colors can’t be focused simultaneously. In lateral aberration, the different wavelengths of light cause different image scales.
Q- What do the markings on an eyepiece mean?
A- Eyepieces generally have markings that indicate its focal length. For example, an eyepiece that is marked “30mm” has a lens with a focal length of 30mm.
Other markings such as “SR”, “H” or “Pl” indicate the type of eyepiece it is. “H” indicates that it is a Huygens eyepiece, and “SR” indicates a Symmetric Ramsden Eyepiece.
Some eyepieces also have numbers, for example “10x/22”. This indicates the field stop diameter is 22mm. As magnifications are always divided by 250, 10x means that the focal length is 25mm (250/10=25).
For field of vision, the eyepiece also has the following markings: “Pl” stands for Planar eyepieces; “W-Pl” for Wide Planar eyepieces; “E-Pl” for Extra Planar eyepieces, “W” for Wide eyepieces, “S-Pl” for photo eyepieces.
Q- Do eyepieces come in different sizes?
A- Yes, eyepieces come in different sizes. For the diameter of the eyepiece barrel standard sizes are 1.25” and 2” eyepieces.
Most telescopes are designed for the 1.25” diameter eyepieces, while not all telescopes work with 2” eyepieces and some require adapters. Accessories such as Barlow lenses and filters are usually designed for both sizes.
While there are also 0.965” eyepieces, these are generally not advised for use.
Q- Are the larger eyepieces better quality than the smaller sizes?
A- No, there is no relationship between the quality of an eyepiece and its size. Larger eyepieces tend to have a wider field of vision, but are also more expensive.
Q- What is Eye Relief? Is it important?
A- Eye Relief is the distance from the eye to the position of the eyepiece at which the eye can be placed. It is important because it ensures comfortable viewing.
Long eye reliefs generally allow for more comfortable viewing because your eye lashes may touch the lens and create smudges. You also don’t have to press your eyes as close to the eyepiece for a clear image.
If you wear spectacles, eye relief is especially important because short eye relief will not allow you to view comfortably. A minimum of 15mm eye relief is needed for spectacles-wearers to have the full viewing field, so spectacles-wearers may need a Barlow lens when using an eyepiece with short eye relief.
Q- What does it mean when an eyepiece says it has “coated optics”, & “Parafocal”?
A- Parafocal eyepieces don’t require much refocusing when changing eyepieces. This is because they are from the same family of eyepieces with different focal lengths, and is more for convenience.
Eyepieces with coated pieces have been treated with anti-reflection coatings to ensure more transmission of light, and decrease glare and loss of contrast. The more coatings the eyepiece has, the better the view but also the higher the price.
This concludes our “Best Telescope Eyepieces” article. Always remember your telescope is as good as eyepiece you are using. Don’t hesitate to pay extra for premium eyepiece because that will always bring out the best of your telescope.
Eyepieces are the one-time investment, even if you upgrade to a better telescope in the future you can always use the old eyepiece with them. So, don’t settle for cheap eyepiece wait for one or two months if you are low on cash.
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