{"product_id":"daystar-interference-eliminator-quark-to-m42","title":"Daystar Interference Eliminator - Quark to M42","description":"\n\u003cul class=\"DAV-feature-list\"\u003e\n    \u003cli\u003e\n        Eliminate the Newton Rings\n    \u003c\/li\u003e\n    \u003cli\u003e\n        +\/- 5° Tilt Range\n    \u003c\/li\u003e\n    \u003cli\u003e\n        Compatible with M42x0.75 17.5m or 12.5mm cameras\n    \u003c\/li\u003e\n    \u003cli\u003e\n        Camera clocking angle adjustable at 30° intervals\n    \u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c!-- more --\u003e\n\u003cul class=\"tabs\"\u003e\n    \u003cli class=\"active\"\u003eDescription\u003c\/li\u003e\n    \u003cli\u003eSpecifications\u003c\/li\u003e\n    \u003cli\u003eIn the Box\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cul class=\"tabs-content\"\u003e\n    \u003cli class=\"active\"\u003e       \n        \u003cdiv\u003e\n            \u003c!-- Title image text --\u003e\n            \u003cdiv class=\"DAV-bg-light\"\u003e\n                \u003c!-- Main Image --\u003e\n                \u003cdiv class=\"DAV-section-center\"\u003e\n                    \u003ch2\u003eDaystar Interference Eliminator - Quark to M42 Overview\u003c\/h2\u003e\n                    \u003cp\u003e\n                        The Daystar Tilt Adapter is a precision-machined optical accessory designed specifically for use with Daystar Quark H-alpha and Calcium filter assemblies. It enables direct mechanical coupling of T-thread (M42x0.75) cameras to the Quark while introducing a tilt mechanism to mitigate interference fringes (commonly referred to as Newton's Rings) during high-resolution solar imaging.\n                      \u003c\/p\u003e\n                      \u003cp\u003e\n                        Unlike generic tilt adapters designed for nighttime use, the Daystar unit provides a maximum tilt angle of \u003cstrong\u003e5 degrees\u003c\/strong\u003e, which is critical for solar imaging applications where narrowband etalons are highly susceptible to fringe artifacts. The high tilt capacity ensures sufficient off-axis beam deviation to disrupt etalon-parallel interference patterns at the sensor plane.\n                      \u003c\/p\u003e\n                      \u003cp\u003e\n                        For Quark users conducting imaging work, this adapter is essential to ensure flat, artifact-free solar images. Without it, Newton’s Rings are highly likely, particularly with monochrome sensors and narrowband filters. This adapter is \u003cstrong\u003enot recommended for visual use\u003c\/strong\u003e.\n                      \u003c\/p\u003e    \n                \u003c\/div\u003e\n            \u003c\/div\u003e\n        \n        \u003c\/div\u003e\n\n\n        \u003cdiv class=\"DAV-section-container\"\u003e\n            \u003c!-- Main Image --\u003e\n        \u003cdiv class=\"DAV-section-text\"\u003e\n                \u003ch4\u003eTilt Adjustment:\u003c\/h4\u003e\n                \u003cul\u003e\n                  \u003cli\u003eFully adjustable tilt up to 5°, optimized for solar use\u003c\/li\u003e\n                  \u003cli\u003eThree-point screw system allows controlled plane manipulation without flexure\u003c\/li\u003e\n                \u003c\/ul\u003e\n\n                \u003ch4\u003eCamera Orientation:\u003c\/h4\u003e\n                \u003cul\u003e\n                  \u003cli\u003eClocking angle adjustable in 30° increments via a removable thumbscrew system\u003c\/li\u003e\n                  \u003cli\u003eAids in cable strain relief and optimal sensor alignment\u003c\/li\u003e\n                \u003c\/ul\u003e\n\n                \u003ch4\u003eBack Focus Support:\u003c\/h4\u003e\n                \u003cul\u003e\n                  \u003cli\u003eNative design supports cameras with 17.5mm flange focal distance\u003c\/li\u003e\n                  \u003cli\u003eIncludes 5mm spacer ring for use with 12.5mm flange distance cameras\u003c\/li\u003e\n                \u003c\/ul\u003e\n\n                \u003ch4\u003eMechanical Design:\u003c\/h4\u003e\n                \u003cul\u003e\n                  \u003cli\u003eBlack anodized aluminum construction for thermal stability\u003c\/li\u003e\n                  \u003cli\u003eInternal threading and matte finish to suppress stray light and reflections\u003c\/li\u003e\n                \u003c\/ul\u003e\n              \n           \n                \n          \u003c\/div\u003e\n        \u003c\/div\u003e\n\n\n        \u003cdiv class=\"DAV-section-container\"\u003e\n            \u003c!-- Image Section --\u003e\n            \u003cdiv class=\"DAV-section-img\"\u003e\n                \u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0753\/5280\/1565\/files\/Daystar-Newton-Rings.jpg?v=1750293706\" alt=\"Comparison Newton Rings with Interference Eliminator\"\u003e\n            \u003c\/div\u003e\n\n            \u003c!-- Text Section --\u003e\n            \u003cdiv class=\"DAV-section-text\"\u003e\n                \u003ch3\u003eUnderstanding Newton’s Rings in Solar Imaging\u003c\/h3\u003e              \n                \u003cp\u003e\n                    When imaging in narrowband monochromatic light—such as Hydrogen Alpha—photographers often observe a wavy pattern of alternating light and dark lines across their images. These are known as \u003cstrong\u003eNewton’s Rings\u003c\/strong\u003e, also referred to as \u003cem\u003einterference fringes\u003c\/em\u003e or \u003cem\u003ebanding artifacts\u003c\/em\u003e. They are a result of coherent light reflecting between parallel surfaces within the optical path, often between the sensor cover glass and filter elements.\n                  \u003c\/p\u003e\n                  \u003cp\u003e\n                    In setups with long focal ratios and narrowband filters, the nearly collimated light increases the likelihood of internal reflections inside the camera or sensor assembly. These reflections cause constructive and destructive interference, which manifests as unwanted visible patterns superimposed on the image.\n                  \u003c\/p\u003e\n                  \u003cp\u003e\n                    The Daystar Tilt Adapter addresses this issue by introducing a controlled off-axis tilt to the sensor without shifting the sensor’s center position. This maintains \u003cstrong\u003efocus, framing, and vignetting\u003c\/strong\u003e, while altering the angle of incidence and the optical path lengths across the sensor. The result is a disruption of the conditions necessary for coherent interference, effectively eliminating Newton’s Rings from the captured image.\n                  \u003c\/p\u003e\n                \n            \u003c\/div\u003e\n        \u003c\/div\u003e\n\n    \u003c\/li\u003e\n\n\n\n\n    \u003cli\u003e\n        \u003ctable class=\"DAV-specifications\"\u003e\n            \u003ctbody\u003e\n                \u003ctr\u003e\n                    \u003ctd\u003e\n                        \u003cp\u003eTilt Range\u003c\/p\u003e\n                    \u003c\/td\u003e\n                    \u003ctd\u003e\n                        \u003cp\u003e+\/- 5°\u003c\/p\u003e\n                    \u003c\/td\u003e\n                \u003c\/tr\u003e\n                \u003ctr\u003e\n                    \u003ctd\u003e\n                        \u003cp\u003eQuark Side Thread\u003c\/p\u003e\n                    \u003c\/td\u003e\n                    \u003ctd\u003e\n                        \u003cp\u003e1 3\/8-24\" UNS Male\u003c\/p\u003e\n                    \u003c\/td\u003e\n                \u003c\/tr\u003e\n                \u003ctr\u003e\n                    \u003ctd\u003e\n                        \u003cp\u003eCamera Side Thread\u003c\/p\u003e\n                    \u003c\/td\u003e\n                    \u003ctd\u003e\n                        \u003cp\u003eM42x0.75 Male\u003c\/p\u003e\n                    \u003c\/td\u003e\n                \u003c\/tr\u003e\n                \u003c!-- Add more rows as needed --\u003e\n            \u003c\/tbody\u003e\n        \u003c\/table\u003e\n    \u003c\/li\u003e\n    \n\n    \u003cli\u003e\n        \u003cul class=\"DAV-grid\"\u003e\n            \u003cli class=\"DAV-grid-item\"\u003e\n                \u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0753\/5280\/1565\/files\/Daystar-Interference-Eliminator-Quark-to-T-IEQT.jpg?v=1750293943\" alt=\"Interference Eliminator\" class=\"DAV-img-box\"\u003e\n                \u003cdiv\u003e\n                    \u003cp class=\"DAV-item-title\"\u003eInterference Eliminator\u003c\/p\u003e\n                    \u003cp class=\"DAV-item-subtitle\"\u003e× 1\u003c\/p\u003e\n                \u003c\/div\u003e\n            \u003c\/li\u003e\n            \u003cli class=\"DAV-grid-item\"\u003e\n                \u003cdiv\u003e\n                    \u003cp class=\"DAV-item-title\"\u003e5mm Spacer\u003c\/p\u003e\n                    \u003cp class=\"DAV-item-subtitle\"\u003e× 1\u003c\/p\u003e\n                \u003c\/div\u003e\n            \u003c\/li\u003e\n            \u003c!-- Add more items as needed --\u003e\n        \u003c\/ul\u003e          \n    \u003c\/li\u003e\n    \n\n\u003c\/ul\u003e\n","brand":"Daystar Filters","offers":[{"title":"Default Title","offer_id":50078224122141,"sku":"DAY-IEQT","price":99.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0753\/5280\/1565\/files\/Daystar-Interference-Eliminator-Quark-to-T-IEQT.jpg?v=1750293943","url":"https:\/\/davidastro.com\/fr-us\/products\/daystar-interference-eliminator-quark-to-m42","provider":"David Astro","version":"1.0","type":"link"}