For Bright Field and Dark Field Observation

  • CFI optical system
  • High N.A and long working distance
  • Confocal length 45 mm, conjugate focal length 200 mm and field of view 25 mm in diameter
Cat. No. SDN5 SDN10 SDN20 SDN40 SDN60
Dimensional
Drawing		 Detail View Detail View Detail View Detail View Detail View
Magnification 5 X 10 X 20 X 40 X 60 X
NA
(Numerical Aperture)		 0.1 0.25 0.45 0.65 0.85
WD
(Working Distance)		 10 mm 4 mm 2.5 mm 0.7 mm 0.5 mm
F
(Focal length)		 40 mm 20 mm 10 mm 5 mm 3.33 mm
R
(Resolving Power)		 2 um 1 um 0.7 um 0.4 um 0.3 um
DOF
(Depth Of Focal)		 ±14 um ±3.5 um ±1.6 um ±0.6 um ±0.4 um
FD
(Field Diameter)
φ24		 φ5 mm φ2.5 mm φ1.6 mm φ0.625 mm φ0.42 mm
Field Area on
1/2’CCD		 0.96 x 1.28 mm 0.4 x 0.64 mm 0.24 x 0.32 mm 0.12 x 0.16 mm 0.08 x 0.11 mm
Weight 87 g 85 g 95 g 88 g 142 g

Screw Pitch: 27 x 0.706