Microscope Objectives

• Super long working distance design. Each objective lens has a long working distance of over 20mm

• For brightfield observation with infinity correct design with 200mm back focal length

• Superior Quality Plan Achromat design

• Excellent Color reproduction

• Compatible with Nikon and Olympus systems

Specifications

Model No.: ILDMO2 ILDMO5 ILDMO7 ILDMO10 ILDMO20 ILDMO50 ILDMO100
Magnification 2X 5X 7X 10X 20X 50X 100X
N.A. (Numerical Aperture) 0.055 0.13 0.22 0.28 0.29 0.42 0.55
W.D. (Working Distance) 34.4mm 45mm 35.4mm 34mm 31mm 20.5mm 13mm
F.D. (Front Focal Length) 100mm 40mm 28.6mm 20mm 10mm 4mm 2mm
R (Resolving Power) 5um 2um 1.25um 1um 1um 0.7um 0.5um
+/- D.F. (Focal Depth) 91um 14um 5.7um 3.5um 3.5um 1.6um 0.9um
F.No.24 (Field Diameter) ø12mm ø4.8um ø3.6um ø2.4mm ø1.2mm ø0.48mm 24mm
Field Area on 1/2″ CCD (mm) 2.4X3.2 0.96X1.28 0.96X1.28 0.686X0.914 0.27X0.32 0.1X0.13 0.05X0.06
Weight 210g 170g 245g 190g 220g 250g 340g

**Screw Pitch : 26 X 0.706 (36 TPI)

**Parfocal Length: 95mm