[{"data":1,"prerenderedAt":-1},["ShallowReactive",2],{"detail-sidebar-cat-0-en-105":3,"doc-seo-269407-105":59,"doc-detail-269407-en":131},{"code":4,"msg":5,"data":6},0,"success",[7,13,18,23,28,33,38,43,48,51,55],{"id":8,"doc_module":4,"doc_module_name":9,"category_name":10,"show_sort_weight":11,"slug":12},1,"Document","Story & Novel",90,"story-novel",{"id":14,"doc_module":4,"doc_module_name":9,"category_name":15,"show_sort_weight":16,"slug":17},2,"Literature",80,"literature",{"id":19,"doc_module":4,"doc_module_name":9,"category_name":20,"show_sort_weight":21,"slug":22},4,"Exam",70,"exam",{"id":24,"doc_module":4,"doc_module_name":9,"category_name":25,"show_sort_weight":26,"slug":27},5,"Comic",60,"comic",{"id":29,"doc_module":4,"doc_module_name":9,"category_name":30,"show_sort_weight":31,"slug":32},6,"Technology",50,"technology",{"id":34,"doc_module":4,"doc_module_name":9,"category_name":35,"show_sort_weight":36,"slug":37},7,"Healthcare",40,"healthcare",{"id":39,"doc_module":4,"doc_module_name":9,"category_name":40,"show_sort_weight":41,"slug":42},8,"Research & Report",30,"research-report",{"id":44,"doc_module":4,"doc_module_name":9,"category_name":45,"show_sort_weight":46,"slug":47},9,"Religion & Spirituality",20,"religion-spirituality",{"id":46,"doc_module":4,"doc_module_name":9,"category_name":49,"show_sort_weight":46,"slug":50},"World Cup","world-cup",{"id":52,"doc_module":4,"doc_module_name":9,"category_name":53,"show_sort_weight":52,"slug":54},10,"Lifestyle","lifestyle",{"id":56,"doc_module":4,"doc_module_name":9,"category_name":57,"show_sort_weight":24,"slug":58},19,"General","general",{"code":4,"msg":60,"data":61},"ok",{"site_id":62,"language":63,"slug":64,"title":65,"keywords":66,"description":67,"schema_data":68,"social_meta":124,"head_meta":126,"extra_data":128,"updated_unix":130},105,"en","orion-collimating-eyepiece-4411-instructions","Orion Collimating Eyepiece - 4411 - Anleitung","","Guide for using the Orion Collimating Eyepiece #4411 to keep telescope optics precisely aligned for improved resolution and contrast. Explains the concept of collimation, why misalignment causes star images to appear comet-like, and differences across refractor/Maksutov versus Newtonian and Schmidt-Cassegrain designs. Includes a practical test method using defocus on a bright star and provides step-by-step instructions for inserting, orienting, and using the eyepiece safely, including Sun avoidance and focuser depth alignment.",{"@graph":69,"@context":123},[70,84,106],{"@type":71,"itemListElement":72},"BreadcrumbList",[73,77,79,82],{"item":74,"name":75,"@type":76,"position":8},"https://docshare.wps.com","Home","ListItem",{"item":78,"name":9,"@type":76,"position":14},"https://docshare.wps.com/document/",{"item":80,"name":30,"@type":76,"position":81},"https://docshare.wps.com/document/technology/",3,{"item":83,"name":65,"@type":76,"position":19},"https://docshare.wps.com/document/orion-collimating-eyepiece-4411-instructions/269407/",{"url":83,"name":65,"@type":85,"image":86,"author":91,"headline":65,"publisher":94,"fileFormat":97,"inLanguage":63,"description":67,"dateModified":98,"datePublished":99,"encodingFormat":97,"isAccessibleForFree":100,"interactionStatistic":101},"DigitalDocument",{"url":87,"@type":88,"width":89,"height":90},"https://docshare.wps.com/thumbnails/orion-collimating-eyepiece-4411-instructions/269407.png","ImageObject",300,407,{"name":92,"@type":93},"Stanford","Person",{"url":74,"name":95,"@type":96},"DocShare","Organization","application/pdf","2026-10-20","2026-09-15",true,{"@type":102,"interactionType":103,"userInteractionCount":105},"InteractionCounter",{"@type":104},"ViewAction",11,{"@type":107,"mainEntity":108},"FAQPage",[109,115,119],{"name":110,"@type":111,"acceptedAnswer":112},"What does collimation mean for a telescope’s optics?","Question",{"text":113,"@type":114},"Collimation is aligning the optical components with the telescope’s optical and mechanical axes so mirrors and/or lenses are centered and angled correctly. Proper alignment makes light form a sharp image centered in the eyepiece.","Answer",{"name":116,"@type":111,"acceptedAnswer":117},"How can you tell if your telescope is properly collimated?",{"text":118,"@type":114},"Point the telescope at a bright star and rack the image out of focus with the focusing knob. A properly collimated scope shows an expanding out-of-focus circle that is symmetrical, and the secondary mirror’s shadow appears centered like the hole in a doughnut.",{"name":120,"@type":111,"acceptedAnswer":121},"How should the Collimating Eyepiece be inserted and oriented?",{"text":122,"@type":114},"Insert it into the 1.25\" focuser; if using a 2\" focuser, use a 1.25\" adapter. Remove the star diagonal if applicable, insert to the correct depth so the tube edge appears slightly wider than the secondary, and rotate so the cutout side faces available external light.","https://schema.org",{"og:url":83,"og:type":125,"og:title":65,"og:site_name":95,"og:description":67},"article",{"robots":127,"canonical":83},"index,follow",{"doc_id":129,"site_id":62},269407,1789451334,{"code":4,"msg":5,"data":132},{"doc_id":129,"user_id":133,"nickname":92,"user_avatar":134,"doc_module":4,"category_id":29,"category_name":30,"doc_title":65,"doc_description":67,"doc_content":135,"file_id":136,"file_url":137,"file_type":138,"file_size":139,"view_count":105,"is_deleted":4,"is_public":8,"is_downloadable":8,"audit_status":8,"page_count":14,"language":140,"language_code":63,"site_id":62,"html_lang":63,"table_of_contents":141,"faqs":142,"seo_title":143,"seo_description":67,"update_tm":130,"read_time":24},2336477552062,"https://ap-avatar.wpscdn.com/davatar_994ba38a5ba835b3df7d355c54d3ed8d","Orion® Collimating Eyepiece \\#4411  \nCongratulations on your purchase of an Orion Collimating Eyepiece! It’sa practical and easy-to-use tool for insuring that your telescope’s optics are always in precise alignment, and therefore capable of rendering the best possible resolution and contrast.  \nWhat is Collimation?  \nCollimation is the process by which an instrument’s optical components are brought into precise alignment with its optical axis and mechanical axis. In other words, all the mirrors and/or lenses should be centered and angled so that light entering the telescope forms a sharp image precisely in the center of the eyepiece. If the optics are not properly aligned, stars will appear not as pinpoints as they should, but rather as flared, teardrop-shaped “comets” or “sea gulls.”  \nCollimation of Different Telescope Types  \nRefractor and Maksutov telescopes are collimated at the factory and generally should not need further adjustment. If collimation does become necessary later, it is best to have it done at the factory, since these scopes usually possess no user-adjustable collimation settings.  \nCollimation is more of an issue with Newtonian reflectors and SchmidtCassegrains. Good collimation is particularly critical for“faster” Newtonians, those with f-ratios of f/6 or lower. Once the collimation is set, it will hold if care is taken in transporting and handling the optical tube. However, any sharp jolts can knock the mirrors out of alignment, as can jostling of the scope in the trunk of a car or temperature changes over a period of time. Fortunately, these telescopes are equipped with adjustment screws that permit easy recollimation.  \nTesting Your Telescope’s Collimation  \nYou can quickly determine whether your telescope is properly collimated. Just point it at a bright star and slowly rack the image out of focus by with the focusing knob. If the telescope is correctly collimated, the expanding disk should be a perfect circle. If it is unsymmetrical, the scope is out of collimation. In reflectors and Schmidt-Cassegrains, the dark shadow cast by the secondary mirror should appear in the very center of the out-offocus circle, like the hole in a doughnut. If the “hole” appears off-center, the telescope is out of collimation.  \nPurpose of the Collimating Eyepiece  \nAligning the mirrors seems easy enough, in theory, but in practice it can be difficult without the proper tools.  \nA common way of collimating—the “quick and dirty” method—is to simply remove the eyepiece and look down the focuser tube to center the mirror reflections. The accuracy of this method, however, is not reliable. For one thing, there is no way to know whether you are looking straight down the focuser tube; your line of sight could be off by a degree or two. Another problem is knowing when the reflections of the mirrors are exactly centered. Just “eyeballing it” isn’t precise enough; the reflections may appear to be centered when in fact they are not.  \nThe Collimating Eyepiece will take care of both of these problems, allowing you to achieve precise collimation without “guessing,” and thus improve your telescope’s performance. The Collimating Eyepiece is a combination of a “sight tube” and a “Cheshire eyepiece.” The sight tube’s narrow field of view and crosshairs provide a reference for centering the optical elements during the collimation process. A Cheshire eyepiece has a polished flat set in the barrel at a 45° angle, which directs light entering from a cutout in the side of the barrel down into the optical path. The Cheshire allows quick and easy collimation of the primary mirror, assuming the mirror has been marked with a spot exactly in its center. (This can be done by first measuring to determine the exact center of the mirror,  \nthen marking it with a 1/4\"-diameter spot with a black permanent felt-tip marker. (Another alternative is to affix a white paper hole “reinforcement”at the center, if the black spot is difficult to see behind the cro","cbCaieAQAPymUkyh","https://ap.wps.com/l/cbCaieAQAPymUkyh","pdf",133561,"English","# What is Collimation?\n## Collimation of Different Telescope Types\n# Testing Your Telescope’s Collimation\n# Purpose of the Collimating Eyepiece\n## Anatomy of the Collimating Eyepiece\n# Using the Collimating Eyepiece\n## Newtonian Reflectors","[{\"question\":\"What does collimation mean for a telescope’s optics?\",\"answer\":\"Collimation is aligning the optical components with the telescope’s optical and mechanical axes so mirrors and/or lenses are centered and angled correctly. Proper alignment makes light form a sharp image centered in the eyepiece.\"},{\"question\":\"How can you tell if your telescope is properly collimated?\",\"answer\":\"Point the telescope at a bright star and rack the image out of focus with the focusing knob. A properly collimated scope shows an expanding out-of-focus circle that is symmetrical, and the secondary mirror’s shadow appears centered like the hole in a doughnut.\"},{\"question\":\"How should the Collimating Eyepiece be inserted and oriented?\",\"answer\":\"Insert it into the 1.25\\\" focuser; if using a 2\\\" focuser, use a 1.25\\\" adapter. Remove the star diagonal if applicable, insert to the correct depth so the tube edge appears slightly wider than the secondary, and rotate so the cutout side faces available external light.\"}]","Orion Collimating Eyepiece - 4411 - Anleitung | PDF"]