Mitutoyo 378-803-3 M Plan Apo 10X Objective, NA 0.28, WD 33.5mm

Mitutoyo M Plan Apo 10X infinity-corrected objective for brightfield observation – the standard metallurgical plan apochromat: flat, chromatic-aberration-free image across the field. Mitutoyo 378 series objectives have the world's longest working distances, giving good clearance over awkward workpiece features. Mounting thread to JIS B-7141.

• Magnification: 10X
• Numerical aperture: 0.28
• Working distance: 33.5 mm
• Focal length: 20 mm
• Resolving power: 1.0 µm
• Depth of focus: 3.5 µm
• Field of view (FN 24 eyepiece): 2.4 mm
• Field of view (1/2" camera): 0.48 x 0.64 mm
• Observation: Brightfield
• Mass: 230 g

Made in Japan by Mitutoyo.