Accessories for Measuring Microscope Glass Thickness (t = 3.5mm) Corrected G Plan Apo for Bright Field Observation Order No. Mag. N.A. W.D. f R D.F.
View field 1 View field 2 Mass
378-847
20X 0.28
29.42mm* 10mm 1.0µm 3.5µm ø1.2mm 0.24x0.32mm 270g 13.89mm* 4mm 0.6µm 1.1µm ø0.48mm 0.10x0.13mm 320g
378-848-3 50X 0.50
*In air
DIMENSIONS
15.08 (W.D.)
Unit: mm
30.6 (W.D.)
1.58
1.6
Glass
Glass
65.59
80
378-847
378-848-3
96.19
96.19
5
5
Note: The G Plan Apo Series are designed for observing a workpiece through BK-7 glass (thickness = 3.5mm).
BD Plan Apo for Bright/Dark Field Observation Order No. Mag. N.A. W.D. f R
D.F.
View field 1 View field 2 Mass
378-831-13 378-831-13 378-830-7 378-833-7 378-834-7 378-835-7 378-836-7
2X 0.055 34.0mm 100mm 5.0µm 91µm ø12mm 2.4x3.2mm 340g
5X
0.14 34.0mm 40mm 2.0µm 14.0µm ø4.8mm 0.96x1.28mm 350g
7.5X 0.21 34.0mm 26.67mm 1.3µm 6.2µm ø3.6mm 0.64x0.85mm 350g 10X 0.28 34.0mm 20mm 1.0µm 3.5µm ø2.4mm 0.48x0.64mm 350g 20X 0.42 20.0mm 10mm 0.7µm 1.6µm ø1.2mm 0.24x0.32mm 400g 50X 0.55 13.0mm 4mm 0.5µm 0.9µm ø0.48mm 0.10x0.13mm 440g 100X 0.70 6.0mm 2mm 0.4µm 0.6µm ø0.24mm 0.05x0.06mm 460g
DIMENSIONS
6(W.D)
8.5
4
34(W.D)
4
34(W.D)
Unit: mm
61
61
89
378-836-7
378-833-7
378-831-12
95 (Parfocal distance)
5
95 (Parfocal distance)
95 (Parfocal distance)
5
5
4
20(W.D)
7
34(W.D)
61
75
378-832-12
95 (Parfocal distance)
5
378-834-7
95 (Parfocal distance)
5
I
Find a Distributor
13(W.D)
4
34(W.D)
7
61
82
378-830-7
95 (Parfocal distance)
5
378-835-7
95 (Parfocal distance)
5
BD Plan Apo SL for Bright/Dark Field Observation Order No. Mag. N.A. W.D. f R
D.F.
View field 1 View field 2 Mass
378-840-7
20X 0.28 30.5mm 10mm 1.0µm 3.5µm ø1.2mm 0.24x0.32mm 350g
DIMENSIONS
Note: These objectives offer extra-long working distance.
Unit: mm
7.5
30.5(W.D.)
Mag.: N.A.: W.D.:
Magnification
Numerical aperture Working distance Focal distance Resolving power
64.5
f:
378-840-7
95 (Parfocal distance)
5
R:
D.F.: Focal depth View field 1: Field of view when using ø24mm eyepiece View field 2: Field of view when using 1/2” CCD camera
8
20(W.D.)
I-33
75
378-841-7
95 (Parfocal distance)
5
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