Mitutoyo BD Plan Apo SL 50x ULWD Objective

Infinity corrected, metallurgical brightfield darkfield (BD) plan apochromat ultra long working distance 50x SL (super long) objective lens. Microscope lens features include:

• Magnification = 50x
• NA = 0.42
• WD = 20.5mm
• Focal Length = 4mm
• Resolving Power = 0.7µm
• Depth of Field = 1.6µm
• Real Field of View with Ø24 Eyepiece = Ø0.48
• Real Field of View with 1/2" Chip Camera = 0.10 x 0.13
• Parfocal Distance = 95mm 
• Wavelength Range = 436nm to 656nm
• Thread Size = M40
• Weight = 410g

Mitutoyo Part # = 378-841-7
Note: This item is not returnable.