{"title":"Ursa Major FMC Flatfield","description":"\u003cp\u003eEvery Ursa Major FMC Flatfield eyepiece we stock, listed by focal length.\u003c\/p\u003e","products":[{"product_id":"ursa-major-fmc-flatfield-eyepiece-7-5mm","title":"Ursa Major FMC Flatfield Eyepiece 7.5mm","description":"\u003ch2\u003eUrsa Major FMC Flatfield Eyepiece 7.5mm\u003c\/h2\u003e\n\u003cp\u003e\u003cstrong\u003eAn excellent alternative to regular Plossl or Orthoscopic eyepieces. \u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eUrsa Major FMC Flatfield eyepieces have a five to six-element optical design that provides surprisingly high performance, generous eye relief and a wide apparent field of view from 60 to 65 degrees, depending on the focal length. \u003c\/p\u003e\n\u003cp\u003eTheir Flatfield design with fully multicoated, edge-blackened optics reduces field curvature and enhances brightness and contrast. \u003c\/p\u003e\n\u003cp\u003eThe black-anodised 1.25\" nosepiece has a safety taper (for a secure fit in the focuser) and is threaded to accept 1.25\" astronomy filters. \u003c\/p\u003e\n\u003cp\u003eEach Ursa Major FMC Flatfield eyepiece is beautifully finished with a tactile grip and a fold-down rubber eye cup for comfortable viewing.\u003c\/p\u003e\n\u003cp\u003eSupplied with a lens cleaning cloth and an eyepiece bag. \u003c\/p\u003e\n\u003ch2\u003eEyepiece Field of View Simulator\u003c\/h2\u003e\n\u003cp\u003e\u003ciframe src=\"https:\/\/astronomy.tools\/calculators\/embedded_field_of_view\/?fov[]=20100|3600|||1||\u0026amp;fov[]=20100|3599|||1||\u0026amp;fov[]=20100|3598|||1||\u0026amp;fov[]=20100|3597|||1||\u0026amp;fov[]=20100|3596|||1||\u0026amp;fov[]=20100|3595|||1||\u0026amp;fov[]=20100|3594|||1||\u0026amp;messier=31\u0026amp;quick_select=telescope\" width=\"640\" height=\"950\" data-mce-fragment=\"1\"\u003e\u003c\/iframe\u003e\u003ca id=\"specifications\" name=\"specifications\"\u003e\u003c\/a\u003e\u003c\/p\u003e\n\u003cdiv id=\"product_specifications\"\u003e \u003c\/div\u003e","brand":"Ursa Major","offers":[{"title":"Default Title","offer_id":44014082621551,"sku":"ursamajor_fmc_ff_ep_7.5mm","price":75.0,"currency_code":"CAD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0686\/0049\/6239\/files\/ursamajor_fmc_ff_ep_7.5mm_16__17472.jpg?v=1766570303"},{"product_id":"ursa-major-fmc-flatfield-eyepiece-5-5mm","title":"Ursa Major FMC Flatfield Eyepiece 5.5mm","description":"\u003ch2\u003eUrsa Major FMC Flatfield Eyepiece 5.5mm\u003c\/h2\u003e\n\u003cp\u003e\u003cstrong\u003eAn excellent alternative to regular Plossl or Orthoscopic eyepieces. \u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eUrsa Major FMC Flatfield eyepieces have a five to six-element optical design that provides surprisingly high performance, generous eye relief and a wide apparent field of view from 60 to 65 degrees, depending on the focal length. \u003c\/p\u003e\n\u003cp\u003eTheir Flatfield design with fully multicoated, edge-blackened optics reduces field curvature and enhances brightness and contrast. \u003c\/p\u003e\n\u003cp\u003eThe black-anodised 1.25\" nosepiece has a safety taper (for a secure fit in the focuser) and is threaded to accept 1.25\" astronomy filters. \u003c\/p\u003e\n\u003cp\u003eEach Ursa Major FMC Flatfield eyepiece is beautifully finished with a tactile grip and a fold-down rubber eye cup for comfortable viewing.\u003c\/p\u003e\n\u003cp\u003eSupplied with a lens cleaning cloth and an eyepiece bag. \u003c\/p\u003e\n\u003ch2\u003eEyepiece Field of View Simulator\u003c\/h2\u003e\n\u003cp\u003e\u003ciframe src=\"https:\/\/astronomy.tools\/calculators\/embedded_field_of_view\/?fov[]=20100|3600|||1||\u0026amp;fov[]=20100|3599|||1||\u0026amp;fov[]=20100|3598|||1||\u0026amp;fov[]=20100|3597|||1||\u0026amp;fov[]=20100|3596|||1||\u0026amp;fov[]=20100|3595|||1||\u0026amp;fov[]=20100|3594|||1||\u0026amp;messier=31\u0026amp;quick_select=telescope\" width=\"640\" height=\"950\" data-mce-fragment=\"1\"\u003e\u003c\/iframe\u003e\u003ca id=\"specifications\" name=\"specifications\"\u003e\u003c\/a\u003e\u003c\/p\u003e\n\u003cdiv id=\"product_specifications\"\u003e \u003c\/div\u003e","brand":"Ursa Major","offers":[{"title":"Default Title","offer_id":44014082687087,"sku":"ursamajor_fmc_ff_ep_5.5mm","price":75.0,"currency_code":"CAD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0686\/0049\/6239\/files\/ursamajor_fmc_ff_ep_5.5mm_7__06926.jpg?v=1766570309"},{"product_id":"ursa-major-fmc-flatfield-eyepiece-3-5mm","title":"Ursa Major FMC Flatfield Eyepiece 3.5mm","description":"\u003ch2\u003eUrsa Major FMC Flatfield Eyepiece 3.5mm\u003c\/h2\u003e\n\u003cp\u003e\u003cstrong\u003eAn excellent alternative to regular Plossl or Orthoscopic eyepieces. \u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eUrsa Major FMC Flatfield eyepieces have a five to six-element optical design that provides surprisingly high performance, generous eye relief and a wide apparent field of view from 60 to 65 degrees, depending on the focal length. \u003c\/p\u003e\n\u003cp\u003eTheir Flatfield design with fully multicoated, edge-blackened optics reduces field curvature and enhances brightness and contrast. \u003c\/p\u003e\n\u003cp\u003eThe black-anodised 1.25\" nosepiece has a safety taper (for a secure fit in the focuser) and is threaded to accept 1.25\" astronomy filters. \u003c\/p\u003e\n\u003cp\u003eEach Ursa Major FMC Flatfield eyepiece is beautifully finished with a tactile grip and a fold-down rubber eye cup for comfortable viewing.\u003c\/p\u003e\n\u003cp\u003eSupplied with a lens cleaning cloth and an eyepiece bag. \u003c\/p\u003e\n\u003ch2\u003eEyepiece Field of View Simulator\u003c\/h2\u003e\n\u003cp\u003e\u003ciframe src=\"https:\/\/astronomy.tools\/calculators\/embedded_field_of_view\/?fov[]=20100|3600|||1||\u0026amp;fov[]=20100|3599|||1||\u0026amp;fov[]=20100|3598|||1||\u0026amp;fov[]=20100|3597|||1||\u0026amp;fov[]=20100|3596|||1||\u0026amp;fov[]=20100|3595|||1||\u0026amp;fov[]=20100|3594|||1||\u0026amp;messier=31\u0026amp;quick_select=telescope\" width=\"640\" height=\"950\" data-mce-fragment=\"1\"\u003e\u003c\/iframe\u003e\u003ca id=\"specifications\" name=\"specifications\"\u003e\u003c\/a\u003e\u003c\/p\u003e\n\u003cdiv id=\"product_specifications\"\u003e \u003c\/div\u003e","brand":"Ursa Major","offers":[{"title":"Default Title","offer_id":44014082752623,"sku":"ursamajor_fmc_ff_ep_3.5mm","price":75.0,"currency_code":"CAD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0686\/0049\/6239\/files\/ursamajor_fmc_ff-ep_3.5mm_6__08892.jpg?v=1766570314"},{"product_id":"ursa-major-fmc-flatfield-eyepiece-10mm","title":"Ursa Major FMC Flatfield Eyepiece 10.5mm","description":"\u003ch2\u003eUrsa Major FMC Flatfield Eyepiece 10.5mm\u003c\/h2\u003e\n\u003cp\u003e\u003cstrong\u003eAn excellent alternative to regular Plossl or Orthoscopic eyepieces. \u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eUrsa Major FMC Flatfield eyepieces have a five to six-element optical design that provides surprisingly high performance, generous eye relief and a wide apparent field of view from 60 to 65 degrees, depending on the focal length. \u003c\/p\u003e\n\u003cp\u003eTheir Flatfield design with fully multicoated, edge-blackened optics reduces field curvature and enhances brightness and contrast. \u003c\/p\u003e\n\u003cp\u003eThe black-anodised 1.25\" nosepiece has a safety taper (for a secure fit in the focuser) and is threaded to accept 1.25\" astronomy filters. \u003c\/p\u003e\n\u003cp\u003eEach Ursa Major FMC Flatfield eyepiece is beautifully finished with a tactile grip and a fold-down rubber eye cup for comfortable viewing.\u003c\/p\u003e\n\u003cp\u003eSupplied with a lens cleaning cloth and an eyepiece bag. \u003c\/p\u003e\n\u003ch2\u003eEyepiece Field of View Simulator\u003c\/h2\u003e\n\u003cp\u003e\u003ciframe src=\"https:\/\/astronomy.tools\/calculators\/embedded_field_of_view\/?fov[]=20100|3600|||1||\u0026amp;fov[]=20100|3599|||1||\u0026amp;fov[]=20100|3598|||1||\u0026amp;fov[]=20100|3597|||1||\u0026amp;fov[]=20100|3596|||1||\u0026amp;fov[]=20100|3595|||1||\u0026amp;fov[]=20100|3594|||1||\u0026amp;messier=31\u0026amp;quick_select=telescope\" width=\"640\" height=\"950\" data-mce-fragment=\"1\"\u003e\u003c\/iframe\u003e\u003ca id=\"specifications\" name=\"specifications\"\u003e\u003c\/a\u003e\u003c\/p\u003e\n\u003cdiv id=\"product_specifications\"\u003e \u003c\/div\u003e","brand":"Ursa Major","offers":[{"title":"Default Title","offer_id":44014082850927,"sku":"ursamajor_fmc_ff_ep_10.5mm","price":75.0,"currency_code":"CAD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0686\/0049\/6239\/files\/ursamajor_fmc_ff_ep_10.5mm_19__84046.jpg?v=1766570319"},{"product_id":"ursa-major-fmc-flatfield-eyepiece-15mm","title":"Ursa Major FMC Flatfield Eyepiece 15.5mm","description":"\u003ch2\u003eUrsa Major FMC Flatfield Eyepiece 15.5mm\u003c\/h2\u003e\n\u003cp\u003e\u003cstrong\u003eAn excellent alternative to regular Plossl or Orthoscopic eyepieces. \u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eUrsa Major FMC Flatfield eyepieces have a five to six-element optical design that provides surprisingly high performance, generous eye relief and a wide apparent field of view from 60 to 65 degrees, depending on the focal length. \u003c\/p\u003e\n\u003cp\u003eTheir Flatfield design with fully multicoated, edge-blackened optics reduces field curvature and enhances brightness and contrast. \u003c\/p\u003e\n\u003cp\u003eThe black-anodised 1.25\" nosepiece has a safety taper (for a secure fit in the focuser) and is threaded to accept 1.25\" astronomy filters. \u003c\/p\u003e\n\u003cp\u003eEach Ursa Major FMC Flatfield eyepiece is beautifully finished with a tactile grip and a fold-down rubber eye cup for comfortable viewing.\u003c\/p\u003e\n\u003cp\u003eSupplied with a lens cleaning cloth and an eyepiece bag. \u003c\/p\u003e\n\u003ch2\u003eEyepiece Field of View Simulator\u003c\/h2\u003e\n\u003cp\u003e\u003ciframe src=\"https:\/\/astronomy.tools\/calculators\/embedded_field_of_view\/?fov[]=20100|3600|||1||\u0026amp;fov[]=20100|3599|||1||\u0026amp;fov[]=20100|3598|||1||\u0026amp;fov[]=20100|3597|||1||\u0026amp;fov[]=20100|3596|||1||\u0026amp;fov[]=20100|3595|||1||\u0026amp;fov[]=20100|3594|||1||\u0026amp;messier=31\u0026amp;quick_select=telescope\" width=\"640\" height=\"950\" data-mce-fragment=\"1\"\u003e\u003c\/iframe\u003e\u003ca id=\"specifications\" name=\"specifications\"\u003e\u003c\/a\u003e\u003c\/p\u003e\n\u003cdiv id=\"product_specifications\"\u003e \u003c\/div\u003e","brand":"Ursa Major","offers":[{"title":"Default Title","offer_id":44014082916463,"sku":"ursamajor_fmc_ff_ep_15.5mm","price":75.0,"currency_code":"CAD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0686\/0049\/6239\/files\/ursamajor_fmc_ff_ep_15.5mm_10__50099.jpg?v=1766570325"},{"product_id":"ursa-major-fmc-flatfield-eyepiece-19mm","title":"Ursa Major FMC Flatfield Eyepiece 19mm","description":"\u003ch2\u003eUrsa Major FMC Flatfield Eyepiece 19mm\u003c\/h2\u003e\n\u003cp\u003e\u003cstrong\u003eAn excellent alternative to regular Plossl or Orthoscopic eyepieces. \u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eUrsa Major FMC Flatfield eyepieces have a five to six-element optical design that provides surprisingly high performance, generous eye relief and a wide apparent field of view from 60 to 65 degrees, depending on the focal length. \u003c\/p\u003e\n\u003cp\u003eTheir Flatfield design with fully multicoated, edge-blackened optics reduces field curvature and enhances brightness and contrast. \u003c\/p\u003e\n\u003cp\u003eThe black-anodised 1.25\" nosepiece has a safety taper (for a secure fit in the focuser) and is threaded to accept 1.25\" astronomy filters. \u003c\/p\u003e\n\u003cp\u003eEach Ursa Major FMC Flatfield eyepiece is beautifully finished with a tactile grip and a fold-down rubber eye cup for comfortable viewing.\u003c\/p\u003e\n\u003cp\u003eSupplied with a lens cleaning cloth and an eyepiece bag. \u003c\/p\u003e\n\u003ch2\u003eEyepiece Field of View Simulator\u003c\/h2\u003e\n\u003cp\u003e\u003ciframe src=\"https:\/\/astronomy.tools\/calculators\/embedded_field_of_view\/?fov[]=20100|3600|||1||\u0026amp;fov[]=20100|3599|||1||\u0026amp;fov[]=20100|3598|||1||\u0026amp;fov[]=20100|3597|||1||\u0026amp;fov[]=20100|3596|||1||\u0026amp;fov[]=20100|3595|||1||\u0026amp;fov[]=20100|3594|||1||\u0026amp;messier=31\u0026amp;quick_select=telescope\" width=\"640\" height=\"950\" data-mce-fragment=\"1\"\u003e\u003c\/iframe\u003e\u003ca id=\"specifications\" name=\"specifications\"\u003e\u003c\/a\u003e\u003c\/p\u003e\n\u003cdiv id=\"product_specifications\"\u003e \u003c\/div\u003e","brand":"Ursa Major","offers":[{"title":"Default Title","offer_id":44014082981999,"sku":"ursamajor_fmc_ff_ep_19mm","price":75.0,"currency_code":"CAD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0686\/0049\/6239\/files\/ursamajor_fmc_ff_ep_19mm_13__42021.jpg?v=1766570332"},{"product_id":"ursa-major-fmc-flatfield-eyepiece-25mm","title":"Ursa Major FMC Flatfield Eyepiece 25mm","description":"\u003ch2\u003eUrsa Major FMC Flatfield Eyepiece 25mm\u003c\/h2\u003e\n\u003cp\u003e\u003cstrong\u003eAn excellent alternative to regular Plossl or Orthoscopic eyepieces. \u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eUrsa Major FMC Flatfield eyepieces have a five to six-element optical design that provides surprisingly high performance, generous eye relief and a wide apparent field of view from 60 to 65 degrees, depending on the focal length. \u003c\/p\u003e\n\u003cp\u003eTheir Flatfield design with fully multicoated, edge-blackened optics reduces field curvature and enhances brightness and contrast. \u003c\/p\u003e\n\u003cp\u003eThe black-anodised 1.25\" nosepiece has a safety taper (for a secure fit in the focuser) and is threaded to accept 1.25\" astronomy filters. \u003c\/p\u003e\n\u003cp\u003eEach Ursa Major FMC Flatfield eyepiece is beautifully finished with a tactile grip and a fold-down rubber eye cup for comfortable viewing.\u003c\/p\u003e\n\u003cp\u003eSupplied with a lens cleaning cloth and an eyepiece bag. \u003c\/p\u003e\n\u003ch2\u003eEyepiece Field of View Simulator\u003c\/h2\u003e\n\u003cp\u003e\u003ciframe src=\"https:\/\/astronomy.tools\/calculators\/embedded_field_of_view\/?fov[]=20100|3600|||1||\u0026amp;fov[]=20100|3599|||1||\u0026amp;fov[]=20100|3598|||1||\u0026amp;fov[]=20100|3597|||1||\u0026amp;fov[]=20100|3596|||1||\u0026amp;fov[]=20100|3595|||1||\u0026amp;fov[]=20100|3594|||1||\u0026amp;messier=31\u0026amp;quick_select=telescope\" width=\"640\" height=\"950\" data-mce-fragment=\"1\"\u003e\u003c\/iframe\u003e\u003ca id=\"specifications\" name=\"specifications\"\u003e\u003c\/a\u003e\u003c\/p\u003e\n\u003cdiv id=\"product_specifications\"\u003e \u003c\/div\u003e","brand":"Ursa Major","offers":[{"title":"Default Title","offer_id":44014083506287,"sku":"ursamajor_fmc_ff_ep_25mm","price":75.0,"currency_code":"CAD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0686\/0049\/6239\/files\/ursamajor_fmc_ff-ep_25mm_1__30381.jpg?v=1766570337"}],"url":"https:\/\/ontariotelescope.com\/collections\/ursa-major-fmc-flatfield.oembed","provider":"Ontario Telescope and Accessories","version":"1.0","type":"link"}