{"product_id":"magus-nd10r-10h-22mm-eyepiece-with-reticle-and-diopter-adjustment-d-30mm","title":"MAGUS ND10R 10х\/22mm Eyepiece with reticle and diopter adjustment (D 30mm)","description":"\u003cp\u003eAn eyepiece with a reticle is used to determine the size of samples and their structures in linear units (millimeters or microns)  measure the areas of structures in the sample  and conduct the comparative analysis of particle counts. The reticle is placed in the plane of the field diaphragm with a division of 0.1mm. The eyepiece with a reticle is installed instead of a standard 10x eyepiece. A paired eyepiece without a reticle is installed in the second eyepiece tube.\u003c\/p\u003e \u003cp\u003eThe eyepiece is compatible with microscopes that have a 30mm eyepiece tube.\u003c\/p\u003e \u003cp\u003e\u003cstrong\u003eSetting up\u003c\/strong\u003e\u003c\/p\u003e \u003cp\u003eBefore taking measurements  the eyepiece reticle must be calibrated for each objective that will be used. It requires a calibration slide – a stage micrometer with a scale. The minimum division is 0.01mm. The slide should be placed on the stage and the microscope should be focused on the scale. The eyepiece should be rotated in the eyepiece tube until the scales of a slide and reticle are aligned parallel to each other.\u003c\/p\u003e \u003cp\u003e\u003cstrong\u003eCalculation of the reticle value for each objective\u003c\/strong\u003e\u003c\/p\u003e \u003cp\u003eIf you use low-magnification objectives  you should calculate how many divisions of the eyepiece reticle fit into the slide scale. If you use medium and high-magnification objectives  you should calculate how many divisions of the slide fit into the eyepiece reticle division.\u003c\/p\u003e \u003cp\u003eCalculation for each objective is carried out according to the formula: Е = ТL\/A  where E – reticle division value Т – stage division value specified on the stage micrometer (0.01mm) L – number of stage micrometer divisions A – number of reticle divisions.\u003c\/p\u003e \u003cp\u003eThe resulting values of the reticle division for each objective shall be recorded.\u003c\/p\u003e \u003cp\u003e\u003cstrong\u003eCalculating the true linear size of an object\u003c\/strong\u003e\u003c\/p\u003e \u003cp\u003eWhen measuring an object  first you should count the number of eyepiece reticle divisions that the object covers. The result is multiplied by the reticle value previously calculated for the selected objective. The resulting value will be the true linear value of the object.\u003c\/p\u003e \u003cp\u003e\u003cstrong\u003eCalculating the area of an object\u003c\/strong\u003e\u003c\/p\u003e \u003cp\u003eTo determine the area of the object structure  the number of reticle squares that the structure covers is counted. If the structure covers only a part of the square  it should be determined in advance as to how this square should be considered in the final calculation: ignored or added to the result. The eyepiece with a reticle can only be used for approximate evaluation of the area; for accurate calculations  image analysis software is recommended.\u003c\/p\u003e \u003cp\u003e\u003cstrong\u003eParticle counting\u003c\/strong\u003e \u003c\/p\u003e \u003cp\u003eThe eyepiece with a reticle can be also used for the comparative counting of particles in the given area. First  the number of small particles in a square is counted and multiplied by the number of squares. Then  the number of large particles in the entire area is counted. The resulting counts are compared.\u003c\/p\u003e \u003cp\u003e\u003cstrong\u003eCompatibility:\u003c\/strong\u003e\u003c\/p\u003e \u003cul\u003e \u003cli\u003eMAGUS Bio 260T Biological Microscope\u003c\/li\u003e \u003cli\u003eMAGUS Bio DH260 Biological Microscope\u003c\/li\u003e \u003cli\u003eMAGUS Bio 270T Biological Microscope\u003c\/li\u003e \u003cli\u003eMAGUS Bio 290T Biological Microscope\u003c\/li\u003e \u003cli\u003eMAGUS Bio V360 Biological Inverted Microscope\u003c\/li\u003e \u003cli\u003eMAGUS Lum 450L Fluorescence Microscope\u003c\/li\u003e \u003cli\u003eMAGUS Metal V790 DIC Metallurgical Inverted Microscope\u003c\/li\u003e \u003cli\u003eMAGUS Pol 890 Polarizing 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\u003e5905555025438\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003ePackage size (LxWxH)\u003c\/td\u003e\n\u003ctd\u003e4x7x4 cm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eLens material\u003c\/td\u003e\n\u003ctd\u003eoptical glass\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eMagnification  x\u003c\/td\u003e\n\u003ctd\u003e10\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eField of view  mm\u003c\/td\u003e\n\u003ctd\u003e22\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eEye relief  mm\u003c\/td\u003e\n\u003ctd\u003e10\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eEyepiece diopter adjustment  diopters\u003c\/td\u003e\n\u003ctd\u003e±5D\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eBarrel diameter  mm\u003c\/td\u003e\n\u003ctd\u003e30\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eReticle division  mm\u003c\/td\u003e\n\u003ctd\u003e0.1\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\u003c\/table\u003e","brand":"MAGUS","offers":[{"title":"Default title","offer_id":52673953530185,"sku":"85089","price":90.12,"currency_code":"EUR","in_stock":true}],"url":"https:\/\/madeiraoptics.com\/es-eu\/products\/magus-nd10r-10h-22mm-eyepiece-with-reticle-and-diopter-adjustment-d-30mm","provider":"Madeira Optics","version":"1.0","type":"link"}