1PC 2X-100X M Plan LWD APO NIR Metallographic Microscope Objective Lens
Focal Length: 40 mm / 20 mm / 10 mm / 4 mm 4 mm. Working Distance: 45 mm / 34 mm / 20.2 mm / 20.16 mm 9.6 mm. Wavelength: 400-1064 nm. Depth of Field: 18 μm / 3.5 μm / 1.7 μm / 1.6 μm 0.55μm. is provided once the item is dispatched.