SP series eyepieces set the performance standard for modern telescope oculars. The proven 4-element Plössl design delivers edge-to-edge blackened elements the highest contrast images attainable. SP series eyepieces minimize spherical aberration, distortion, astigmatism and off-axis color white oversize optical elements afford the observer luxurious eye relief. Stray light is eliminated by the fold back rubber eyecups standard with every SP eyepiece and all but the lightest three models feature the security of rubber grips.
The modified achromat series of eyepieces offer a good standard of performance in a very affordable package. Designed for telescopes with mid-range to long f/ratio, these oculars have features usually found only in more expensive designs. These Super Eyepieces incorporate a fold-down rubber eye- shield, fully coated optics and outstanding field correction.
This Celestron Omni series eyepiece offers a 43º apparent field of view, perfect for the Moon, planets, and a plethora of deep-sky objects. The premium four-element optical set is finished with multiple layers of high-transmission coatings for clear, sharp images. The edges of the optics are blackened for increased contrast. The Omni eyepiece body is made of aluminium. A two-step anodizing process results in a beautiful matte finish that resists reflections and glare. Each eyepiece in the Omni Series includes a black rubber eyecup. It can be left up or folded down for better observations while wearing eyeglasses. Models with a longer barrel (15 mm, 32 mm, 40 mm) include a rubberized grip for non-slip handling during observing sessions. The insert barrel is threaded to accept 1.25” filters.
Celestron Omni series eyepieces offer a 50º apparent field of view, perfect for the Moon, planets, and a plethora of deep-sky objects. The premium four-element optical set is finished with multiple layers of high-transmission coatings for clear, sharp images. The edges of the optics are blackened for increased contrast. The Omni eyepiece body is made of aluminum. A two-step anodizing process results in a beautiful matte finish that resists reflections and glare. Each eyepiece in the Omni Series includes a black rubber eyecup. It can be left up or folded down for better observations while wearing eyeglasses. Models with a longer barrel (15 mm, 32 mm, 40 mm) include a rubberized grip for non-slip handling during observing sessions. The insert barrel is threaded to accept 1.25” filters.
Celestron Omni series eyepieces offer a 50º apparent field of view, perfect for the Moon, planets, and a plethora of deep-sky objects. The premium four-element optical set is finished with multiple layers of high-transmission coatings for clear, sharp images. The edges of the optics are blackened for increased contrast. The Omni eyepiece body is made of aluminum. A two-step anodizing process results in a beautiful matte finish that resists reflections and glare. Each eyepiece in the Omni Series includes a black rubber eyecup. It can be left up or folded down for better observations while wearing eyeglasses. Models with a longer barrel (15 mm, 32 mm, 40 mm) include a rubberized grip for non-slip handling during observing sessions. The insert barrel is threaded to accept 1.25” filters.
Celestron X-Cel LX series eyepieces offer a 60º apparent field of view, perfect for the Moon, the planets, and a plethora of deep-sky objects. The premium six-element optical set is finished with multiple layers of high-transmission coatings for clear, sharp images. The edges of the optics are blackened for increased contrast. All seven X-Cel LX eyepieces sport 16 mm of comfortable eye relief, and are parfocal, which means you can switch out eyepieces within the series during observing sessions and little or no additional focusing will be required.The X-Cel LX eyepiece body is made of black-anodized aluminum. The pop-up eyecups make it easy to adjust the height for different users. Turn them in one direction to extend the length, and the other direction to provide a flat surface, preferable to most eyeglass wearers. A treaded rubber grip around the center of the eyepiece barrel offers secure handling, even in moist conditions or with heavy gloves on. The 1.25” insert barrel is threaded to accept filters.The Celestron X-Cel LX Series includes the following focal lengths in a 1.25” format:5 mm, 7 mm, 9 mm, 12 mm, 18 mm, 25 mm
Lumicon Polarizing Filters are manufactured from optically flat Hoya polarized glass. They are the best for cutting all glare and increases contrast on bright celestial objects such as the moon at full illumination and can be double-stacked with other Lumicon filters for use on bright planets. They are also useful for daylight observation of land, sea, and nature. In addition to polarizing the light, they reduce its intensity by a factor of about 3 times.
The LF2090, 2" Neutral Density 50 Filter (ND50), transmits 50% of all incident light while blocking 50%. For lunar and planetary observing, and splitting double stars. Lumicon Neutral Density Filters are made from renowned Schott and Hoya optical glass and allow for maximum contrast on viewing planetary and lunar detail. Individually precision ground highly polished with maximum light transmission coatings on both sides. For 1.25 eyepieces.
The Lumicon Comet filter, A narrow band-pass filter system (25nm), isolates the 501nm OIII LINE and both Cyanogen LINEs RK 511nm and 514nm. The high contrast gain OF the filters reveals the delicate ionized tail OF gaseous comets, allowing you ton lake their full extent. The Comet filter thus helps you tons better distinguish gaseous comets from dusty comets which normally show little contrast gain.
Celestron X-Cel LX series eyepieces offer a 60º apparent field of view, perfect for the Moon, the planets, and a plethora of deep-sky objects. The premium six-element optical set is finished with multiple layers of high-transmission coatings for clear, sharp images. The edges of the optics are blackened for increased contrast. All seven X-Cel LX eyepieces sport 16 mm of comfortable eye relief and are parfocal, which means you can switch out eyepieces within the series during observing sessions and little or no additional focusing will be required.The X-Cel LX eyepiece body is made of black-anodized aluminum. The pop-up eyecups make it easy to adjust the height for different users. Turn them in one direction to extend the length, and the other direction to provide a flat surface, preferable to most eyeglass wearers. A treaded rubber grip around the center of the eyepiece barrel offers secure handling, even in moist conditions or with heavy gloves on. The 1.25” insert barrel is threaded to accept filters.FEATURES:X-Cel LX eyepieces, optimized for planetary viewing, offer a 60° field of view through a six-element fully multi-coated lens system;Pop-up rubber eyeguards provide comfort and increase contrast. Raise and lower with a simple twist;A treaded rubber grip offers a no-slip grip, even with gloves on;1.25” barrels are threaded to accept filters.
Celestron X-Cel LX series eyepieces offer a 60º apparent field of view, perfect for the Moon, the planets, and a plethora of deep-sky objects. The premium six-element optical set is finished with multiple layers of high-transmission coatings for clear, sharp images. The edges of the optics are blackened for increased contrast. All seven X-Cel LX eyepieces sport 16 mm of comfortable eye relief and are parfocal, which means you can switch out eyepieces within the series during observing sessions and little or no additional focusing will be required. The X-Cel LX eyepiece body is made of black-anodized aluminum. The pop-up eyecups make it easy to adjust the height for different users. Turn them in one direction to extend the length, and the other direction to provide a flat surface, preferable to most eyeglass wearers. A treaded rubber grip around the center of the eyepiece barrel offers secure handling, even in moist conditions or with heavy gloves on. The 1.25” insert barrel is threaded to accept filters.FEATURES: X-Cel LX eyepieces, optimized for planetary viewing, offer a 60° field of view through a six-element fully multi-coated lens system; Pop-up rubber eyeguards provide comfort and increase contrast. Raise and lower with a simple twist; A treaded rubber grip offers a no-slip grip, even with gloves on; 1.25” barrels are threaded to accept filters.
Celestron X-Cel LX series eyepieces offer a 60º apparent field of view, perfect for the Moon, the planets, and a plethora of deep-sky objects. The premium six-element optical set is finished with multiple layers of high-transmission coatings for clear, sharp images. The edges of the optics are blackened for increased contrast. All seven X-Cel LX eyepieces sport 16 mm of comfortable eye relief and are parfocal, which means you can switch out eyepieces within the series during observing sessions and little or no additional focusing will be required.The X-Cel LX eyepiece body is made of black-anodized aluminum. The pop-up eyecups make it easy to adjust the height for different users. Turn them in one direction to extend the length, and the other direction to provide a flat surface, preferable to most eyeglass wearers. A treaded rubber grip around the center of the eyepiece barrel offers secure handling, even in moist conditions or with heavy gloves on. The 1.25” insert barrel is threaded to accept filters.FEATURES:X-Cel LX eyepieces, optimized for planetary viewing, offer a 60° field of view through a six-element fully multi-coated lens system;Pop-up rubber eyeguards provide comfort and increase contrast. Raise and lower with a simple twist;A treaded rubber grip offers a no-slip grip, even with gloves on;1.25” barrels are threaded to accept filters.
The Lumicon Comet Filter, a narrow bandpass system (25nm), isolates the 501nm OIII line and both Cyanogen lines at 511nm and 514nm. The high contrast gain of the filter reveals the delicate ionized tail of gaseous comets, allowing you to see their full extent. The Comet Filter also helps you to better distinguish gaseous comets from dusty comets which normally show little contrast gain. Howard Brewington, a famed comet discoverer, says: "I discovered Comet Aarseth-Brewington, 1989a1, using the Lumicon Comet Filter. The filter doubled the contrast, making the comet very easy to spot." Why make comet-hunting harder than it needs to be?
The ULTIMATE nebula filter. The original Lumicon Ultra High Contrast Filter is unbeatable for revealing nebulosity. This achievement in filter performance is attributed to exclusively designed coatings that isolate the two doubly ionized oxygen lines (496 and 501nm) and the H-beta line (486nm) emitted by planetary and most emission nebulae. The result is superb views of the Orion, Lagoon, Swan and other extended nebulae. Useful to great advantage under dark skies.
POLARIZING FILTER 1.25” Designed to reduce the amount of light entering your eyepiece. You can progressively dim the view when observing a bright object, such as the Moon or certain planets, to a level according to your needs, whilst increasing contrast, reducing glare and increasing the amount of detail that can be studied. The 1.25” Polarizing Filter is the best all-purpose lunar and planetary filter.
Wide-angle eyepiece with high sharpness, gas filling and 68 ° apparent field This eyepiece with 68 ° field of view is filled waterproof and with gas. The gas effectively prevents internal fogging, the ingress of dust and moisture and the formation of glass mushroom. Thus, the high-quality multi-layer coating is particularly well protected and durable. The handling is easier, because you can handle the eyepiece easily with cleaning fluid and strong dew can not penetrate between the lenses. Eyepiece so this guarantees a perfect observing experience for many years! Of course, you must not make any compromises in image quality, because the eyepiece offers a sharp and high contrast images throughout the entire field of vision - even with telescopes with a fast aperture. High quality glass material and the blackened lens edges provide along with the EMD multi-layer coating for maximum contrast. In addition, include a folding rubber eyecup, a standard filter thread and a tapered locking groove in the stainless steel receptacle to the standard equipment of this eyepiece. All eyepieces of the 68 ° series are parfocal. This means you do not need to correct the focus when switching eyepieces.
Wide-angle eyepiece with high sharpness, gas filling and 68 ° apparent field This eyepiece with 68 ° field of view is filled waterproof and with gas. The gas effectively prevents internal fogging, the ingress of dust and moisture and the formation of glass mushroom. Thus, the high-quality multi-layer coating is particularly well protected and durable. The handling is easier, because you can handle the eyepiece easily with cleaning fluid and strong dew can not penetrate between the lenses. Eyepiece so this guarantees a perfect observing experience for many years! Of course, you must not make any compromises in image quality, because the eyepiece offers a sharp and high contrast images throughout the entire field of vision - even with telescopes with a fast aperture. High quality glass material and the blackened lens edges provide along with the EMD multi-layer coating for maximum contrast. In addition, include a folding rubber eyecup, a standard filter thread and a tapered locking groove in the stainless steel receptacle to the standard equipment of this eyepiece. All eyepieces of the 68 ° series are parfocal. This means you do not need to correct the focus when switching eyepieces.
Explore Scientific 82° Series™ extreme wide field eyepieces are optimized to produce high contrast, high resolution, and superior flat field characteristics.The visual effect of these eyepieces with their long eye-relief and their 82° apparent field is truly a full-immersion experience. Your eye is relaxed, allowing you to easily use the "averted vision" technique to study faint details across a huge field-of-view. The 82° Series eyepieces come with a twist-up rubber eye-guard that raise to the desired height for the comfort of the observer, and as experienced astronomers know, eye comfort is critical when trying to observe at the visual limits of the telescope. To keep internal reflections to a minimum, all internal surfaces of the eyepiece barrel are flat black, as well as the edges of the lenses themselves to minimize the scattering of light within the lenses themselves. All 82° Series eyepieces are fully multi-coated and edge-blackened to produce maximum contrast.
The narrowband UHC filter, like the O-III filter, isolates the two doubly ionized oxygen lines (496 and 501nm) in addition to the hydrogen-beta line (486nm) emitted by planetary and most emission nebulae. This filter permits superb views of objects like the Orion, Lagoon, Swan and other extended nebulae. It performs well in smaller aperture instruments owing to its greater light transmission than the O-III, yet still suppresses light pollution well. The UHC filter is the best all-around dark-sky nebula filter. Supplied with storage case.
Advanced multilayer "interference" filter designed to enhance deep-sky observing in moderately light-polluted skies. It blocks the most common wavelengths of light pollution - predominantly produced by mercury vapor lamps - and allows higher transmission of critical hydrogen-alpha and hydrogen-beta lines. Bright, light-polluted skies appear much darker in the field of view and contrast significantly enhanced, particularly emission nebulas like the Orion and Lagoon. Views of galaxies and clusters are also improved. Available in 1.25" and 2".
Dramatically Improves Views of Emission and Planetary Nebulas. The UltraBlock is the filter for deep-sky observers located at highly light-polluted sites. Blocks all forms of light pollution - mercury vapor and sodium emission bands - while passing the critical hydrogen-beta and ionized oxygen wavelengths. With an UltraBlock, emission and planetary nebulas "surface" from the washed out background sky. In dark skies, the UltraBlock also enhances the sky presence of a significant number of fainter deep-sky objects over unfiltered and wideband-filtered views. Available in 1.25" and 2".
These Sky-Watcher Ultra-Wide Angle, Multi-Coated, Long Eye Relief eyepieces offer a generous 66º apparent field of view. They provide sharp images right across the field. Rubber eyepieces are included for viewing comfort and to exclude extraneous light.Offers a Generous 66° Apparent Field of ViewMulit-Coated OpticsProvides Sharp Image Right Across the FieldRubber Eyecups for Comfort Viewing and to Minimize Extraneous Light5 Years SkyWatcher Limited Warranty
The 1.25” ExtraFlat 5 or 6-element eyepiece design offers high-end performance at affordable price.Peripheral field curvature has been reduced to an absolute minimum for a flat, virtually distortion-free view from the centre-to-edge of the field. Optical performance is impressive with excellent sharpness, contrast and colour rendition.Oversized eye-lens elements, long eye-relief for spectacle wearers and soft twist-up rubber eyecups for comfortable viewing.All air-glass surfaces fully broadband multi-coatedBlackened lens edgesParfocal. Hard black-anodized aluminium body with knurled rubber grips.Threaded to accept standard 1.25” filters.Available in focal lengths of 16mm, 19mm & 27mm, with apparent fields of view of 60°, 65° & 53° and eye relief of 17mm, 19mm & 23mm respectively.
The exotic 1.25” ExtraFlat™ 5 or 6-element eyepiece design packs premium features and high-end performance into a surprisingly affordable package. The optical designer has succeeded to remove peripheral field curvature so now you can enjoy flat, virtually distortion-free images from the centre-to-edge of the field. Optical performance is impressive, with excellent sharpness, contrast and colour rendition. All models feature oversized eye-lens elements, wide fields of view, long eye-relief for spectacle wearers, and soft twist-up rubber eyecups for comfortable viewing. All models are fully broadband multi-coated, feature blackened lens edges and are parfocal. Beautifully finished in high-gloss anodized aluminium with knurled rubber grips. Threaded to accept standard 1.25” filters.Available in focal lengths of 16mm, 19mm & 27mm, with apparent fields of view of 60°, 65° & 53° and eye relief of 17mm, 19mm & 23mm respectively.
This high quality moon filter is very similar to the Celestron Moon Filter and it has a similar dark green colour. The clear aperture is nearly 22mm. Highly recommended for fast telescopes with f/6 and faster (less then 6) or in refractors as it helps to eliminate the colour aberration of the refractor telescope...
Upgrade for the standard cast tube rings and 45mm dovetail bar supplied with the Evostar-150ED. Constructed from machined aluminum with an anodized finish. Overall weight 2.1kg.
Celestron’s SkyMaster Series of large aperture binoculars are a phenomenal value for high performance binoculars ideal for astronomical viewing or for terrestrial (land) use - especially over long distances. Each SkyMaster model features high quality BaK-4 prisms and multi-coated optics for enhanced contrast. Celestron has designed and engineered the larger SkyMaster models to meet the special demands of extended astronomical or terrestrial viewing sessions. The 25x70 version is one of the most popular models in the series. It offers serious large aperture light gathering in an affordable and reasonably lightweight configuration.
The exotic 1.25” ExtraFlat™ 5 or 6-element eyepiece design packs premium features and high-end performance into a surprisingly affordable package. The optical designer has succeeded to remove peripheral field curvature so now you can enjoy flat, virtually distortion-free images from the centre-to-edge of the field. Optical performance is impressive, with excellent sharpness, contrast and colour rendition. All models feature oversized eye-lens elements, wide fields of view, long eye-relief for spectacle wearers, and soft twist-up rubber eyecups for comfortable viewing. All models are fully broadband multi-coated, feature blackened lens edges and are parfocal. Beautifully finished in high-gloss anodized aluminium with knurled rubber grips. Threaded to accept standard 1.25” filters.Available in focal lengths of 16mm, 19mm & 27mm, with apparent fields of view of 60°, 65° & 53° and eye relief of 17mm, 19mm & 23mm respectively.
You want to collimate your Newtonian telescope to get the best possible image out of it and need a collimation aid that is precise but inexpensive.Long metal tube with crosshairsThe collimation eyepiece is simple but absolutely effective. With practice, you will be able to collimate your Newtonian telescope in just a few minutes - especially if simply finely collimating your telescope for optimal imaging. The eyepiece consists of a long metal tube, a reticule and a 45° base. The reticule gives you the orientation required for the optical axis.Collimation of refracting telescopesIf you use the eyepiece for checking the collimation of a refracting (lens) telescope, then you will see as many reflections as there are lenses in the telescope. If all the reflections are round and centred, then your telescope is well collimated.
Sky-Watcher Planetary eyepieces are ideal when high magnification is required for the observation of fine planetary and lunar detail. Based on a modified Plossl design, these fully multi-coated eyepieces are constructed with five lens elements and are characterized by their wide 58-degree field of view, low distortion, high contrast performance and comfortable operation. Each model features fold down/screw-off rubber eyecups and a generous 16mm eye relief, making them suitable for spectacle wearers. Each model features the security of rubber grips and the eyepiece barrels are threaded for standard 1.25” filters. Available in 2.5mm, 4mm, 5mm, 6mm, 7mm and 9mm focal lengths.
Skywatcher Planetary 58° UWA 1.25" Eyepiece 2.5 mm The new Skywatcher Planetary eyepieces are ideal when high magnification is required for the observation of fine planetary and lunar detail. Based on a modified Plössl design, these fully multicoated eyepieces are constructed with five lens elements, and are characterised by their wide 58 degree field of view, low distortion, high contrast performance, and comfortable operation. Each model features fold down/screw-off rubber eyecups and a generous 16 mm eye relief, making them suitable for spectacle wearers. Each model features the security of rubber grips and the eyepiece barrels are threaded for standard 1.25" filters. Available with 2.5 mm , 4 mm , 5 mm , 6 mm , 7 mm and 9 mm focal lengths. Delivery contents: Eyepiece Dust caps
With an image stabilisation range of +/- 5° almost every unintended movement is electronically compensated. Due to its effective performance and rugged construction the Technostabi TS14x40 is the right tool for both professional users and ambitious private consumers. It is available with softcase or Peli case.
These high quality waterproof, nitrogen-filled binoculars, feature a durable yellow and black rubber covering and are designed for fog-free viewing in wet weather conditions. They feature Multi-Coated optics and BaK-4 Prisms, which provide very good optical performance. Fold-down rubber eyecups for spectacle wearers. Integral tripod bush. Supplied with neck strap and case.
Skywatcher UWA planetary eyepieces These eyepieces are ideal when high resolution is needed for observing the Moon and planets. Based on a modified Ploessl design, these fully multi-coated eyepieces are constructed with 5 lens elements for a 58° field of view and high contrast. They are very easy and comfortable to use. The eyepieces are also suitable for spectacle wearers.
Skywatcher Planetary 58° UWA 1.25" Eyepiece 5 mm The new Skywatcher Planetary eyepieces are ideal when high magnification is required for the observation of fine planetary and lunar detail. Based on a modified Plössl design, these fully multicoated eyepieces are constructed with five lens elements, and are characterised by their wide 58 degree field of view, low distortion, high contrast performance, andcomfortable operation. Each model features fold down/screw-off rubber eyecups and a generous 16 mm eye relief, making them suitable for spectacle wearers. Each model features the security of rubber grips and the eyepiece barrels are threaded for standard 1.25" filters. Available with 2.5 mm , 4 mm , 5 mm , 6 mm , 7 mm and 9 mm focal lengths. Delivery contents: Eyepiece Dust caps
Skywatcher Planetary 58° UWA 1.25" Eyepiece 9 mm The new Skywatcher Planetary eyepieces are ideal when high magnification is required for the observation of fine planetary and lunar detail. Based on a modified Plössl design, these fully multicoated eyepieces are constructed with five lens elements, and are characterised by their wide 58 degree field of view, low distortion, high contrast performance, andcomfortable operation. Each model features fold down/screw-off rubber eyecups and a generous 16 mm eye relief, making them suitable for spectacle wearers. Each model features the security of rubber grips and the eyepiece barrels are threaded for standard 1.25" filters. Available with 2.5 mm , 4 mm , 5 mm , 6 mm , 7 mm and 9 mm focal lengths. Delivery contents: Eyepiece Dust caps
This model does not require focusing, making it extremely easy to use and practical for viewing moving-subject activities such as motorsports, racing events as well as for general-purpose observations. The only downside is that it will not focus as closely as a center-focus model and should be used for viewing objects at least 15 meters away. Features BK7 prisms, fully coated optics, integral tripod bush & fold-down rubber eyecups. Supplied with neck strap and case.
The Skywatcher 1.25" 10mm Super Plossl Eyepiece sets high standards for modern telescope accessories. The 4-element Plossl displays edge-to-edge pinpoint imaging across panoramic 52° fields. Crafted with top quality optical glass, superior multi-layer coatings and edge-blackened elements allow it to deliver superb high contrast images.Features:4 Elements DesignMulti-Layered Coatings and Edge Blackened Elements for Superb High Contrast ImagesFold Back Rubber Eyecup to Help Eliminate Stray Light52° Panoramic Fields of View
The Skywatcher 1.25" 12.5mm Super Plossl Eyepiece sets high standards for modern telescope accessories. The 4-element Plossl displays edge-to-edge pinpoint imaging across panoramic 52° fields. Crafted with top quality optical glass, superior multi-layer coatings and edge-blackened elements allow it to deliver superb high contrast images.Features:4 Elements DesignMulti-Layered Coatings and Edge Blackened Elements for Superb High Contrast ImagesFold Back Rubber Eyecup to Help Eliminate Stray Light52° Panoramic Fields of View5 Years Skywatcher Limited Warranty
These standard 1.25"/32 mm eyepieces set high performance standards for modern telescope oculars. The proven 4-element Plossl designs display edge-to-edge pinpoint imaging across their panoramic 52º fields. Utilisation of top quality optical glass, superior multi-layer coatings and edge-blackened elements deliver superb high contrast images.'SP-Series' eyepieces minimise spherical aberration, distortion, astigmatism and off-axis colour, whilst their oversized optical elements afford the observer luxurious eye relief. Stray light is eliminated by the fold back rubber eyecups, standard with every 'SP-Series' eyepiece, and all but the lightest three models feature the security of rubber grips. Whether observing fine planetary detail or deep space wonder, whether your telescope is a Newtonian, Refractor or Catadioptric, let the high performance imaging of 'SP-Series' eyepieces unlock its potential
These standard 1.25"/40 mm eyepieces set high performance standards for modern telescope oculars. The proven 4-element Plossl designs display edge-to-edge pinpoint imaging across their panoramic 52º fields. Utilisation of top quality optical glass, superior multi-layer coatings and edge-blackened elements deliver superb high contrast images. 'SP-Series' eyepieces minimise spherical aberration, distortion, astigmatism and off-axis colour, whilst their oversized optical elements afford the observer luxurious eye relief. Stray light is eliminated by the fold back rubber eyecups, standard with every 'SP-Series' eyepiece, and all but the lightest three models feature the security of rubber grips. Whether observing fine planetary detail or deep space wonder, whether your telescope is a Newtonian, Refractor or Catadioptric, let the high performance imaging of 'SP-Series' eyepieces unlock its potential!
These standard 1.25"/6.3 mm eyepieces set high performance standards for modern telescope oculars. The proven 4-element Plossl designs display edge-to-edge pinpoint imaging across their panoramic 52º fields. Utilisation of top quality optical glass, superior multi-layer coatings and edge-blackened elements deliver superb high contrast images. 'SP-Series' eyepieces minimise spherical aberration, distortion, astigmatism and off-axis colour, whilst their oversized optical elements afford the observer luxurious eye relief. Stray light is eliminated by the fold back rubber eyecups, standard with every 'SP-Series' eyepiece, and all but the lightest three models feature the security of rubber grips. Whether observing fine planetary detail or deep space wonder, whether your telescope is a Newtonian, Refractor or Catadioptric, let the high performance imaging of 'SP-Series' eyepieces unlock its potential