{"product_id":"objetivo-magus-20pl60v-plan-20х-0-40-1-2-h60-mm","title":"MAGUS 20PL60V Plan Objective 20x\/0.40 ∞\/1.2 H60 mm","description":"\u003cp class=\"MsoNormalCxSpFirst\"\u003e\u003cstrong style=\"mso-bidi-font-weight: normal;\"\u003e\u003cspan lang=\"ES\"\u003eMAGUS 20PL60V Plan 20x\/0.40 ∞\/1.2 H60 mm Objective\u003cbr\u003e\u003c\/span\u003e\u003c\/strong\u003e\u003cspan lang=\"ES\"\u003eInfinity-corrected plan achromatic objective. Magnification: 20x. Aperture: 0.40\u003c\/span\u003e\u003c\/p\u003e\u003cp\u003eObjective for brightfield observations.\u003cbr\u003eThe MAGUS Bio V360 microscope kit includes phase objectives. The inner lens of such an objective has an etched metal film ring, which is necessary for phase contrast observations. The metal film provides a quarter-wavelength phase shift relative to the rest of the light and reduces light transmission. Therefore, objectives without phase plates are recommended for this type of observation.\u003c\/p\u003e\u003cp\u003eThe resolution limit of the 20x\/0.40 objective is 0.69 µm.\u003cbr\u003eChromatic aberrations are corrected for blue and red, spherical aberration for green, and field curvature is corrected for 90% of the field of view diameter.\u003cbr\u003e \u003cbr\u003eThe objective is specifically designed for an infinity-corrected tube length. The parfocal distance is 60 mm. When using a 10\/22 mm eyepiece, the field of view diameter is 1.1 mm. The objective is used for working with plates with a 1.2 mm thick bottom.\u003c\/p\u003e\u003cp\u003eThe lower limit of the useful microscope magnification, when using a 20x objective, is 200x. Lower magnification does not allow distinguishing details of the sample whose image is formed by the objective.\u003cbr\u003eThe upper limit of the useful magnification, when using a 20x objective, is 400x. Higher magnifications are considered \"useless\" as they do not provide any new details in the image of the sample.\u003cbr\u003eWith a 20x\/0.40 objective, use eyepieces with a magnification from 10x to 20x.\u003c\/p\u003e\u003cp\u003ePlan achromatic objectives form an image that is in focus at both the center and the edges, and therefore distortion is negligible. This resistance is used for digital imaging and combining with wide-field eyepieces with a 22 mm field of view.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eCompatibility:\u003c\/strong\u003e\u003cbr\u003eMAGUS Bio V360 inverted biological microscope\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eSpecifications:\u003cbr\u003e\u003c\/strong\u003eLens material: optical glass\u003cbr\u003eObjective class according to aberration correction degree: plan achromatic objective\u003cbr\u003eTube length: infinity (∞)\u003cbr\u003eMagnification, x: 20\u003cbr\u003eAperture: 0.40\u003cbr\u003eWorking distance, mm: 4\u003cbr\u003eParfocal distance, mm: 60\u003cbr\u003ePlate bottom thickness, mm: 1.2\u003cbr\u003eSpring-loaded mount: –\u003cbr\u003eImmersion: –\u003c\/p\u003e","brand":"MAGUS","offers":[{"title":"Default Title","offer_id":52888799412567,"sku":"85121","price":140.45,"currency_code":"EUR","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0552\/6198\/6860\/files\/85121_magus-20pl60v-plan-20_D1_850.40-inf-h60mm-objective_00.jpg?v=1772207744","url":"https:\/\/astrotelescopios.com\/en-efta\/products\/objetivo-magus-20pl60v-plan-20%d1%85-0-40-1-2-h60-mm","provider":"Astro Telescopios","version":"1.0","type":"link"}