Technical Data:
Series: 378
Objective family: M Plan Apo NIR B
Magnification: 50X
Numerical aperture: 0.42
Working distance: 25.5 mm
Focal distance: 4 mm at 550 nm
Resolving power: 0.7 um at 550 nm
Focal depth: 1.6 um
View field 1, Dia.24 mm eyepiece: 0.48 mm
View field 2, 1/2 in CCD camera: 0.10 x 0.13 mm
Mass: 375 g
Optical system: Infinity correction
Mounting screw: JIS B-7141-1988

Application:
Microscope objective for bright-field observation.

Dimensions:
Ultra-long W.D. 25.5 mm; corrected 420 to 1064 nm