The metallurgical plan apochromatic (M Plan Apo) objective offers an extra-high resolving power with flat, chromatic aberration-free image throughout the field of view, making it suitable for a wide range of applications.

The Mitutoyo 378 Series Objectives have the world’s longest working distance and an infinity correction optical system. These objectives provide flexible observation at ultra-high magnifications and independent correction of chromatic aberration. The higher numerical aperture values indicate greater optical resolution.
• Long working distance provides clearance between the lens surface and the workpiece surface in focus for large or awkward workpieces
• The mounting screw threads of objectives are M26 x 36TPI and conform to JIS B-7141-1988
• M Plan Apo NUV high-resolution objectives have magnifications of 50x
Order No.: | Product Image: | Magnification: | N.A.: | W.D.: | f: | R: | Depth of Field: | View Field 1: |
---|---|---|---|---|---|---|---|---|
378-888-6 | - | 50x | 0.65 | 10.0mm | 4mm | 0.42µm | 0.65µm | 0.48mm |