{"product_id":"magus-df4-darkfield-condenser-na-1-3-1-26-oil","title":"MAGUS DF4 Darkfield Condenser NА 1.3–1.26 oil","description":"\u003cp\u003eThe darkfield condenser enables the darkfield technique. The darkfield technique is used to obtain the image of unstained translucent samples that do not absorb light well and are invisible in the bright field.\u003c\/p\u003e \u003cp\u003eIn order to use the darkfield condenser  it should be paired with an objective with a smaller N.A. than the condenser. The aperture of the oil condenser is 1.3–1.26 and  therefore  the condenser is used with objectives of 20x and above.\u003c\/p\u003e \u003cp\u003eThe condenser requires the mandatory use of immersion oil between the condenser lens and the slide when working with both dry and immersion objectives. If there is no immersion oil on the condenser lens  the light rays will not reach the specimen.\u003c\/p\u003e \u003cp\u003eThe darkfield condenser is mounted in the arm instead of the Abbe condenser. The condenser has two centering screws for the proper alignment of the opaque stop in the optical path.\u003c\/p\u003e \u003cp\u003eTo obtain a contrast image of the sample using the darkfield technique  we recommend using a 0.17mm thick coverslip and a 1–1.2mm thick slide.\u003c\/p\u003e \u003cp\u003e\u003cstrong\u003eCompatibility:\u003c\/strong\u003e\u003c\/p\u003e \u003cul\u003e \u003cli\u003eMAGUS Bio 270T Biological Microscope\u003c\/li\u003e \u003c\/ul\u003e\u003ctable\u003e\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003eBrand\u003c\/td\u003e\n\u003ctd\u003eMAGUS\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eWarranty\u003c\/td\u003e\n\u003ctd\u003e2 years\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eEAN\u003c\/td\u003e\n\u003ctd\u003e5905555025506\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003ePackage size (LxWxH)\u003c\/td\u003e\n\u003ctd\u003e5x8x5 cm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eN.A.\u003c\/td\u003e\n\u003ctd\u003e1.3 — 1.26\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eImmersion medium\u003c\/td\u003e\n\u003ctd\u003eoil\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eApplicable objectives\u003c\/td\u003e\n\u003ctd\u003e100х (oil)  20х  40х\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\u003c\/table\u003e","brand":"MAGUS","offers":[{"title":"Default title","offer_id":52859756773705,"sku":"85096","price":369.95,"currency_code":"EUR","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0426\/8032\/0154\/files\/85096_magus-df4-darkfield-condenser_00.jpg?v=1756472325","url":"https:\/\/madeiraoptics.com\/products\/magus-df4-darkfield-condenser-na-1-3-1-26-oil","provider":"Madeira Optics","version":"1.0","type":"link"}