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Mitutoyo M Plan Apochromat 50x NIR Objective, part # 378-825 Click here for other Mitutoyo objectives or lower cost alternatives. Mitutoyo’s objectives are world-renowned for setting the standard of excellence for long working distance microscope optics. Mitutoyo arrived at the optimal combination of working distance and optical performance by using a new and original approach and by avoiding outdated conventions used by some competitors. Making the objectives larger and longer (95mm parfocalization length) has eased the design burden. Chromatic aberration is corrected for red, blue, and yellow by using an apochromatic objective lens as compared to a standard achromatic objective lens with correction for red and yellow only. Objectives are strain-free and optimized for bright field illumination (incident illumination parallel to optical axis), making them ideal for in-line illumination applications. Infinity correction is by way of a secondary or tube lens with a standardized focal length of 200 mm. Finally all Mitutoyo M Plan objectives use 26 mm mounting threads with approximately 0.706 mm or 36 TPI pitch. * Working Distance (mm): 17.0 * Resolving Power (µm): 0.7 * Depth of Focus (µm) : 1.6 * Eyepiece, 24 Dia. Field: 0.48 * Eyepiece, 18 Dia. Field: 0.36 * Field of View - L x W (mm) * 2/3" CCD Camera: 0.18 x 0.13 * 1/2" CCD Camera: 0.13 x 0.10 Please contact us if you need help in selecting the right objective. Pictures in this ad are only an approximation, actual product might differ slightly. This part is new and comes with 1-year warranty. Extended warranties available. In case you run into a problem contact us by email at support@ts.nu or phone , from outside the U.S. |