The 7 Best 25 mm Kellner Eyepieces (2023 reviews)

We consider a 25 mm kellner eyepiece to be a worthy investment in the long run. We are here to help you choose the right one for your purposes from all the best available products in market today.

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Our Top Picks:

Best Overall: Buy: Svbony Apparent Field READ REVIEW

Best For planet: Buy: Celestron 25 mm Kellner Eyepiece READ REVIEW

Best For New Scope owner: Buy: Svbony 25 mm Kellner Eyepiece READ REVIEW

Best For Moon: Buy: Astromania 25 mm Kellner Eyepiece READ REVIEW

Best For glass: Buy: Explore Scientific 25 mm Kellner Eyepiece READ REVIEW

Best For reflector Telescope: Buy: Meoptex 25 mm Kellner Eyepiece READ REVIEW

Best For refractor: Buy: Agena Astroproducts 25 mm Kellner Eyepiece READ REVIEW

Best Overall: Svbony Apparent Field

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The look and feel of this eyepieces are consistent with the high quality we're used to from the rest of Svbony's lineup. The SVBONY Super 1.25 inches Plossl Telescope Eyepiece is excellent for finding celestial objects using setting circles or by star hopping. It is a low magnification eyepiece with a wider field of view. This 40mm one is awesome for perusing the sky and finding things as well as getting constellations, clusters, and galaxies in your field of view.

The eyepiece is fully metal construction, only the eye guard and ornament are rubber material and the lens is optical glass. The 40mm eyepiece is more comfortable to watch and can effectively relieve eye fatigue under long-term viewing. It is a high focal length of 1500mm or higher, otherwise it causes visual vignetting of shadow currents. The low magnification and wide field of view is best for locating the target object. This is really helpful when scanning the skies for planets, the moon, and bright deep sky objects.

• Great for panning large portions of the sky and finding your target
• Perfect and comfortable to use for epp astrophotography
• Really useful for a wider view when finding objects
• Has a wide viewing angle and has great sharpness and focus

Best For planet: Celestron 25 mm Kellner Eyepiece

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Most of the eyepieces from this series are very sharp with great field of view and crispy images. It offers a no-slip grip, even with gloves on. It will work with any telescope designed for 1.25" eyepieces, or with a telescope designed for 2" eyepieces with an adapter. The shorter focal length eyepieces (smaller number of millimeters) will give higher magnification.

This eyepiece would provide 36 power through your scope, so you would be looking at the whole moon. There is a tradeoff point between image quality and brightness and in 6" aperture scopes this is not far beyond 150 power. The image is very sharp and crisp and colors and details of the planets are clearly visible with a stable mount.

• Great quality of view, heavy and durable materials, feels good in hand, excellent fov
• Very clear with good eye relief for comfortable viewing
• Good value, very good eye relief

Best For New Scope owner: Svbony 25 mm Kellner Eyepiece

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If you want nothing but the best desirable eyepiece, then svbony 25 mm kellner eyepiece is the one you should definitely consider, as it manages to bring a lot to the table. The lens of eyepiece sets are fully multi coated broadband green optics glass, it is not only super wide angle eyepiece but also PL eyepiece. It provides a widely field fit for observing the lunar planets binaries, the moon. It's a good set that covers a useful F/L range.

The FMC film and 5 elements in 3 groups maximize the light transmission and minimizes internal reflection and maximizes contrast, providing crisp images for you. It comes with an adapter to accommodate 1.25 inch diameter eyepieces. It is perfect for broad field lunar observations. It is great for people with glasses. The machined fully metal aluminum construction is sturdy and solid, durable and premium feel for your daily use.

• Clean, clear images, and a bit wider field of view than a normal plossl
• You'll be able to see jupiter and really close on the moon
• Tested with 100mm f4 reflector telescope

Best For Moon: Astromania 25 mm Kellner Eyepiece

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The astromania 25 mm kellner eyepiece's high-end materials makes sure that it ages well with use. These lenses need a telescope with a diameter greater than. It provides nice crisp wide-angle views. As long as the eyepiece is not too powerful for the scope's aperture, the views are crisp and contrasty. It works great as long as you keep expectations reasonable.

This 6 mm eyepiece comes in handy when viewing lunar details. It will work on an orion star blast 4.5, it has a shorter focal lenth of 450mm with a mirror diamiter of 114mm. They can also be combined to make your own color preference.

• Four elements which give good to excellent sharpness and light transmission
• Coated, multi coated or fully multi coated
• Powers much larger result in fuzzy, dark images such as you describe

Best For glass: Explore Scientific 25 mm Kellner Eyepiece

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Best part: explore scientific 25 mm kellner eyepiece costs comparatively low and it is available to ship in 24 hours. It has a nice field of view without having to spend a huge amount of money. It comes with a 1.25” adapter installed, to accomodate the 2 1.25” eyepieces bundled with it. The Series argon-purged waterproof extreme wide field eyepieces are optimized to produce high contrast, high resolution, and superior flat field characteristics. These are less likely to leak or diffuse their way through the seals over the life of the eyepiece.

The extenders are in 2" and 1" lengths and you'll need them to achieve focus. It is truly a full-immersion experience.

• You can also get a smartphone adapter for some simple shots
• Outstanding optics, sharp across entire field of view and compact form factor
• Very clear optics and you don't need to worry about internal moisture or fogging

Best For reflector Telescope: Meoptex 25 mm Kellner Eyepiece

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This eyepiece is definitely the way to go if you don't want to spend more than the cost of your scope on a single eyepiece. It features an optical advancement over the traditional kellner and gives sharp, faithful lunar, planetary, and deep-space images. The 40mm here is a little sharper with less coma out near the edge, with considerably more useful image in the eyepiece.

The kellner eyepiece design uses a minimum of glass. It includes dust caps additionally it is essential, kellner eyepieces are highly recommended. These are not as immersive with a field of perhaps 70 degrees but look just as good because the long eyecup keeps your eye at the perfect distance for full picture. It will fit any telescope with a 2" focuser.

• Nice 2" eyepiece for the telescope
• Much easier on your eye during extended use
• Reall crisp and saturated and no kidney beaning
• Kellner wide field eyepices with comfortable viewing position

Best For refractor: Agena Astroproducts 25 mm Kellner Eyepiece

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The agena astroproducts 25 mm kellner eyepiece is capable of outshining several other eyepiece featured in this list in overall features for the price point. Agena's Starguider Dual ED eyepieces are truly a "dark horse" ocular design that deserves the highest praise. It gives extremely sharp views and is very comfortable to look through because of the generous eye relief. The eyepiece has a twist-up eyecup that can be raised or lowered to provide the eye relief you find most comfortable. It is threaded to accept standard 1.25" astronomy filters and weighs approx. It is good choice for splitting close binary stars, for examining low contrast lunar and planetary detail, and for ferreting out small and faint planetary nebulae against a truly dark sky background.

It comes with five lens elements in this unique design, this eyepiece is fully internally baffled and all internal spacers have antireflection microbaffles on their edges with flat black anodizing to reduce reflections when viewing the moon and bright planets. The lens edges are blackened to eliminate internal reflections and further improve contrast.

• Rubberized body with retractable eyecups for optimum adjustment
• One of the new comers and featured product