entityType: 'product' Visit the Orion Community Center for in-depth information on telescopes, binoculars, and astrophotography. Long eye relief is advantageous for observers who wear glasses, as they don't have to put their eye directly on the eyepiece to see the entire field of view, nor do they have to remove their eyewear. C $38.62 shipping. Submit astronomy articles, events, & reviews, and even become a featured Orion customer! The field stop diameter greatly affects the apparent field of view of the eyepiece; the larger the field stop diameter, the larger the apparent field of view is. defaultImage: '', C $91.50. defaultImage: '', sourceURL:'/catalog/community_content_viewer_placeholder.jsp?productId=102925&isPDP=true', entityId: 102740, entityId: 101948, Would you like more contrast and less glare while viewing the moon and bright planets? layers: '20025' This starter set of Plossl eyepieces is ideal for all types of telescopes. sourceURL:'/catalog/community_content_viewer_placeholder.jsp?productId=102695&isPDP=true', The cloth is machine washable. And consider adding our email address (news@oriontelescopenews.com) to your email safe senders list, address book or contact list. height: 90, }, { Typically in-stock items will ship first and backordered items will follow as soon as they are available. }, { You're already on our email list, layers: 'ap1745_412013' The 1.25" Orion Variable Polarizing Telescope Filter reduces both and brings out details. Please send me email about sales, new products, and astronomy. From the basic four-lens Plossl design to wide-angle, exotic designs that incorporate more lenses, Orion telescope eyepieces deliver reliable image quality and value. The barrel security recess is a shallow groove or depression cut into the 1.25" or 2" barrel of the eyepiece. height: 160, width: 160, Having trouble viewing details on the Moons surface? entityId: 5662, Orthoscopic and Plossl designs can provide a great quality image with a standard field of view, but may be difficult to use at higher powers while wearing glasses due to the short eye-relief. Because we sell direct, we can offer you tremendous value at a great price. Expand your viewing experience with accessories ranging from moon filters to power-boosting Barlow lenses to advanced computerized telescope mounts. A great 25mm focal length … Each case features a textured, ABS-clad exterior with reinforced edging, die-cut foam interior, two locking metal latches, and shoulder strap. It's no surprise that the eyepieces in our Sirius Plossl line are our best-selling telescope eyepieces. sourceSelector:'' sourceSelector:'' There is a very strong similarity between my 25mm Sirius Plossl and the 25mm Celestron E-Lux Plossl… }, {"clickFunction":"function() {$(\'#_widget1065229089092\').widgetClass().scrollNext(\'#_widget1065229089092\');}","widgetClass":"ButtonWidget"}, {"snapClosest":true,"bindings":{"bind0":{"fn":"function(event, pageNum) { PagedDataSetFilmstripLoaderWidget.loadPage(\'#relatedItems\', Math.floor(pageNum)); }","type":"scrollend","element":"#_widget1065229089092_trigger"}},"unitSize":230,"widgetClass":"SnapToScrollerWidget","scrollSpeed":500,"scrollAmount":1150,"afterScroll":"","animateScroll":"true","beforeScroll":"","direction":"vertical"}, {"emptyItemViewer":"","imageThreshold":5,"pages":10,"dataModel":{"imageWidth":90,"cacheEntitiesInRequest":false,"entityId":"8741","entityTypeId":"4","dataProviderWidget":"com.fry.ocpsdk.widget.catalog.dataproviders.RelatedItemsDataProviderWidget","imageHeight":90,"itemViewerWidget":"com.fry.starter.widget.viewers.ItemViewerWidget","direction":"vertical"},"pageSize":"4","widgetClass":"PagedDataSetFilmstripLoaderWidget","loadThreshold":1,"direction":"vertical"}, {"closeOnBackgroundClick":true,"bindings":{"bind1":{"fn":"function(event, startIndex, itemCount, newItems) { QuickLookWidget.assignEvents(newItems); $(\".Quicklook > .trigger\", newItems).bind(\"quicklookselected\", function(event, source, x, y) { OverlayWidget.show(\'#_widget1065229089117\', event, source, x, y); }); }","type":"itemsloaded","element":".PagedDataSetFilmstripLoader > .trigger"},"bind0":{"fn":"function(){$.fnProxy(arguments,\'#_widget1065229089117\',OverlayWidget.show,\'OverlayWidget.show\');}","type":"quicklookselected","element":".Quicklook > .trigger"}},"effectOnShowSpeed":"","dragByBody":false,"dragByHandle":true,"effectOnHide":"fade","effectOnShow":"fade","cssSelector":"ql-category","effectOnHideSpeed":"1200","allowOffScreenOverlay":false,"effectOnShowOptions":"{}","effectOnHideOptions":"{}","widgetClass":"OverlayWidget","captureClicks":true,"onScreenPadding":10}. layers: 'ap1189_5292012' And consider adding our email address (news@oriontelescopenews.com) to your email safe senders list, address book or contact list. Check out our colorful catalog, filled with hundreds of quality products. width: 90, Orion Sirius Plossl 10mm Telescope Eyepiece in box. The distance, measured in millimeters, between the observer's eye and the eyepiece lens in which the entire field of view remains visible. At Orion, we are committed to sharing our knowledge and passion for astronomy and astrophotography with the amateur astronomy community. Each barrel is internally threaded to accept 1.25" Orion filters. }, { The built-in rubber eyeguards enhance viewing by helping to block out ambient light and properly position the eye. C $38.62 shipping ORION SIRIUS PLOSSL … }, { entityId: 101270, At Orion, we are committed to sharing our knowledge and passion for astronomy and astrophotography with the amateur astronomy community. defaultImage: '', entityType: 'product' Orion 8741 25mm Sirius Plossl Telescope Eyepiece 4.5 out of 5 stars 15. width: 160, It's ideal for all types of telescopes: reflector, refractor, and catadioptric. defaultImage: '', defaultImage: '', and special offers. }, { A great tool for bringing out details in the planets and Moon is this 1.25" set of four Orion Color Telescope Filters. Because we sell direct, we can offer you tremendous value at a great price. }, { … }, { height: 160, Parfocal refers to an attribute of an eyepiece set where little to no focusing is required when swapping out one eyepiece for another. sourceSelector:'' sourceSelector:'' }, { defaultImage: '', You also receive a 25mm and a 10mm Sirius Plossl eyepiece, which … It blocks the most common wavelengths of light pollution for increased contrast and better views. It’s ideal for all types of telescopes: reflector, refractor, and catadioptric. Blackened lens edges in eyepieces and refractor lenses prevent unwanted light scatter inside the tube. In the event the thumb screw holding the eyepiece in the focuser becomes slightly loose, the eyepiece will not fall out because the tip of the thumb screw will catch on the lip of the security groove. It is an inherent specification for a given binocular design. From our entry level beginner telescopes for amateur astronomers to our Dobsonian telescopes to our most advanced Cassegrain telescopes and accessories, you can find the best telescope for you. sourceURL:'/catalog/community_content_viewer_placeholder.jsp?productId=102740&isPDP=true', From our entry level beginner telescopes for amateur astronomers to our Dobsonian telescopes to our most advanced Cassegrain telescopes and accessories, you can find the best telescope for you. }, { defaultImage: '', It blocks the most common wavelengths of light pollution for increased contrast and better views. sourceURL:'/catalog/community_content_viewer_placeholder.jsp?productId=102599&isPDP=true', layers: '05825' }, { The 1.25" Orion 13% Transmission Moon Filter is especially useful with large aperture telescopes. width: 160, For sale Sirius 17mm plossl … Orion Deluxe Accessory Cases are built to protect, store and organize your valuable telescope accessories. }, { height: 90, width: 160, defaultImage: '', height: 90, }, {"clickFunction":"function() {$(\'#_widget1065229089072\').widgetClass().scrollNext(\'#_widget1065229089072\');}","widgetClass":"ButtonWidget"}, {"snapClosest":true,"bindings":{"bind0":{"fn":"function(event, pageNum) { PagedDataSetFilmstripLoaderWidget.loadPage(\'#relatedCommunityItemsarticle\', Math.floor(pageNum)); }","type":"scrollend","element":"#_widget1065229089072_trigger"}},"unitSize":200,"widgetClass":"SnapToScrollerWidget","scrollSpeed":500,"scrollAmount":600,"afterScroll":"","animateScroll":"true","beforeScroll":"","direction":"horizontal"}, {"emptyItemViewer":"

","imageThreshold":3,"pages":2,"dataModel":{"imageWidth":160,"cacheEntitiesInRequest":true,"isCommunityRelated":"true","entityId":"8741","entityTypeId":"4","relationTypeId":"17","dataProviderWidget":"com.fry.ocpsdk.widget.catalog.dataproviders.RelatedEntitiesDataProviderWidget","imageHeight":160,"itemViewerWidget":"com.fry.starter.widget.viewers.ItemViewerWithQuickLookWidget","isPDP":"true","direction":"horizontal"},"pageSize":4,"widgetClass":"PagedDataSetFilmstripLoaderWidget","loadThreshold":1,"direction":"horizontal"}, {"clickFunction":"function() {$(\'#_widget1065229089092\').widgetClass().scrollPrevious(\'#_widget1065229089092\');}","widgetClass":"ButtonWidget"}, { Offering a wide 52° apparent field of view, this 10 mm Orion Sirius Plossl Telescope Eyepiece … Capture breathtaking photos with our affordable astrophotography cameras. Offering a wide 52° apparent field of view, this 25 mm Orion Sirius Plossl Telescope Eyepiece provides extremely sharp images of impressively high contrast. width: 160, entityType: 'product' The built-in rubber eyeguard enhances viewing by helping to block out ambient light and position the eye. These filters are especially useful to owners of large-aperture telescopes. height: 200, to hear about our new products This warranty gives you specific legal rights. When an item is not in-stock we will ship it as soon as it becomes available. Limited Warranty against defects in materials or workmanship for one year from date of purchase. layers: 'VID165' 1.25" Orion Basic Set of Four Color Filters, 1.25" Orion SkyGlow Broadband Eyepiece Filter, Orion Neutral-Density 13% Transmission Moon Filters, telescope and astrophotography accessories, Orion Sirius Plossl 1.25" eyepieces are ideal for all types of telescopes: reflector, refractor, and catadioptrics such as Maksutov-Cassegrains, Sirius Plossls offer a 52-deg apparent field of view for clear, sharp images, Fully coated with magnesium fluoride on every air-to-glass surface for excellent light transmission and high contrast views, Comfortable built-in rubber eyeguards enhance viewing by helping block ambient light and positioning the eye, Threaded for use with Orion 1.25" eyepiece filters. sourceURL:'/catalog/community_content_viewer_placeholder.jsp?productId=101270&isPDP=true', }, { entityType: 'product' entityType: 'product' height: 90, The lens edges are mounted in black-anodized aluminum housings with 1.25" diameter barrels for durability and precision fit in 1.25" telescope focusers, or 2" focusers equipped with a step-down 1.25" eyepiece adapter. Order received after noon will ship the next business day. Wide angle designs provide a larger view of the sky at the same power as a standard eyepiece. }, { Now an employee-owned company, we pride ourselves on an unswerving commitment to best quality products, value and unmatched customer care. The edge-to-edge angular diameter of the image displayed in a binocular as seen by the eyes of the observer. Good lenses are at least "fully coated," with a single layer of magnesium fluoride coating applied to each air-to-glass lens surface. entityId: 5662, For complete warranty details contact us at 800-447-1001. Orion's Telescope Buyer's Guide is a great place to start. Quality this good usually costs a lot more. width: 160, entityId: 8, A great 25mm focal length … It's no surprise that the eyepieces in our Sirius Plossl line are our best-selling telescope eyepieces. height: 90, entityType: 'ensemble' layers: '05660' And when you're stargazing, Orion's telescope cases and covers, observing gear, red LED flashlights, astronomy books and star charts will make your observing sessions more convenient, comfortable and meaningful. The barrel security recess is a shallow groove or depression cut into the 1.25" or 2" barrel of the eyepiece. Click here to create one. entityId: 102695, entityId: 102721, width: 90, }, { The field stop is a mechanical ring in the eyepiece which provides the sharp edge to the field of view when looking through the eyepiece. 25mm Orion Sirius Plossl Telescope Eyepiece. Quality this good usually costs a lot more. {"closeOnBackgroundClick":true,"bindings":{"bind0":{"fn":"function(){$.fnProxy(arguments,\'#headerOverlay\',OverlayWidget.show,\'OverlayWidget.show\');}","type":"quicklookselected","element":".ql-thumbnail .Quicklook .trigger"}},"effectOnShowSpeed":"1200","dragByBody":false,"dragByHandle":true,"effectOnHide":"fade","effectOnShow":"fade","cssSelector":"ql-thumbnail","effectOnHideSpeed":"1200","allowOffScreenOverlay":false,"effectOnShowOptions":"{}","effectOnHideOptions":"{}","widgetClass":"OverlayWidget","captureClicks":true,"onScreenPadding":10}, {"ensembleSEOTranslationTypes":"ensemble","widgetClass":"BreadcrumbWidget","productSEOTranslationTypes":"product","categorySEOTranslationTypes":"category|section,category,thumbnail","delimText":"","catalogSEOTranslationTypes":"catalog","showCatalog":false}. so you'll continue to be the first Since 1975 Orion Telescopes & Binoculars has been offering telescopes for sale direct to customers. Quality this good usually costs a lot more. Our 100% satisfaction guarantee says it all. height: 160, layers: 'VID100' From manufacturer: Like the Sirius Plossl line, this Orion HighLight eyepiece offers a generous 52° field of view and crisp, sharp images. It offers a 52-degree apparent field of view for clear, crisp images of celestial and terrestrial objects. sourceURL:'/catalog/community_content_viewer_placeholder.jsp?productId=102721&isPDP=true', You're already on our email list, Included in the set are the 10mm, 17mm and 25mm telescope eyepieces. The eyepieces in Orion's Sirius Plossl line are their best-selling telescope eyepieces. Coatings help maximize the amount of light transmitted through each glass surface of a binocular, so as much light as possible reaches the observer's eyes to provide a bright and sharp image. }, { entityId: 5660, entityId: 102152, layers: 'VID236' sourceSelector:'' entityType: 'product' defaultImage: '', You have the option in check out to request that your order ship complete, if you'd prefer. width: 90, Multiple layers of coatings are even more effective; the term "multi-coated" means one or more air-to-glass lens surface has multiple coatings. }, { entityType: 'product' defaultImage: '', }, { }, { Lens edges are blackened to both reduce scattering of stray light and maximize contrast. defaultImage: '', height: 160, }, { Plossl eyepieces feature four-element optics that are multi-coated and a pleasantly wide 52° apparent field of view. More complex designs can combine all these attributes together in a single eyepiece. sourceURL:'/catalog/community_content_viewer_placeholder.jsp?productId=102846&isPDP=true', width: 90, defaultImage: '', entityType: 'product' The included 20mm focal length eyepiece … sourceURL:'/catalog/community_content_viewer_placeholder.jsp?productId=101948&isPDP=true', entityId: 5660, entityType: 'product' height: 160, A great tool for bringing out details in the planets and Moon is this 1.25" set of four Orion Color Telescope Filters. Not sure how to choose a telescope? entityId: 5833, The Orion 17mm Plossl Eyepiece is multi-coated to provide bright views of impressively high contrast. width: 90, entityType: 'ensemble' width: 90, entityType: 'product' defaultImage: '', entityType: 'product' width: 160, Submit astronomy articles, events, & reviews, and even become a featured Orion customer! Home Classifieds Astromart Classifieds Eyepieces Sirius 17mm Plossl (Orion) Sirius 17mm Plossl (Orion) Please Log In to view the details for this classified ad. Please note this product was not designed or intended by the manufacturer for use by a child 12 years of age or younger. My 10 and 25mm Sirius Plossls are suspiciously similar to this 'eyepiece set' that used to be sold on Amazon.