The Mitutoyo M Plan Apo SLWD (Super Long Working Distance) objectives are built for precision imaging in brightfield reflected light applications where extra clearance is essential. Available in 20x, 50x, and 100x, these apochromatically corrected lenses deliver sharp, color-accurate images without sacrificing space between the objective and the sample.
With working distances as long as 30.5 mm at 20x and 6 mm at 100x, the SLWD series allows integration with probes, lighting systems, or other equipment beneath the objective—ideal for delicate samples, tall structures, or inline industrial inspection.
Optimized for cleanroom, R&D, and metrology environments, these objectives combine high numerical apertureperformance with the flexibility only super long working distance optics can provide.


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