Super long working distance objective3/10/2024 ![]() Optimized for bright field illumination (incident illumination parallel to optical axis), these lenses are ideal for in-line illumination applications. Plano Apochromats are typically very expensive, but high volume production has made it possible to keep the cost down to that of standard Achromat long working distance objectives. An apochromatic objective lens is chromatic aberration corrected for red, blue, and yellow while a standard achromatic objective lens is only corrected for red and blue. ![]() and contrast as possible, the lenses are all Plano Apochromats. Making the objectives larger and longer has made the designs easier (95mm parfocalization length). ![]() They have achieved the best combination of working distance and optical performance by using a new approach-avoiding outdated conventions used by competitors. Mitutoyo’s objectives are world-renowned for setting the standard of excellence for long working distance microscope optics.
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