Stage Graticules
These stage graticules are intended for the routine calibration of eyepiece patterns, particularly when alternating between objectives on one microscope, or when using the same graticule in different microscopes. Their robust construction makes them ideal for student use and for instructional purposes. The scale or grid is centered on a glass disc mounted in a black anodized aluminum slide 75mm x 24mm x 2mm thick. For applications requiring traceable standards, see Stage Calibration Standards.
Two types are available:
- Transmitted light
- Reflected light, as is used with metallurgical microscopes
Table: Accuracy and Line Widths of Stage Micrometers
| Pattern |
Line Width |
Accuracy (overall) |
Pattern |
Line Width |
Accuracy (overall) |
| S1 or PS1 |
0.005mm |
± 0.002mm |
S16 or PS16 |
0.0015mm |
± 0.001mm |
| S2 |
0.005mm |
± 0.00015mm |
S20 or 21 |
0.0025mm |
± 0.0015mm |
S4 or PS4
S5 or PS5 |
0.002mm |
± 0.0001" |
S22 |
0.0025mm |
± 0.0015mm |
| S8 or PS8 |
0.002mm |
± 0.001mm |
S48 |
0.0027mm |
± 0.001mm |
| S11 |
0.001mm |
± 0.00005" |
S78 or PS78 |
0.003mm |
± 0.001mm |
| S12 or PS12 |
0.001mm |
± 0.001mm |
— |
— |
— |
| Pattern |
Cat # |
Type, Length |
Nos. Div. |
Div. Size |
| S1 |
68040-01 |
Horizontal, 10mm |
100 |
0.1mm |
| S2 |
68039-02 |
Horizontal, 5.0mm |
100 |
0.05mm |
| S4 |
68039-04 |
Horizontal, 0.1" |
100 |
0.001" |
| S5 |
68039-05 |
Horizontal, 20mm |
200 |
0.01mm |
| S8 |
68042-08 |
Horizontal, 1.0mm |
100 |
0.01mm |
| S11 |
68039-11 |
Horizontal, 0.005" |
50 |
0.0001" |
| S12 |
68044-12 |
Horizontal, 0.1mm |
50 |
0.002mm |
| S16 |
68039-16 |
Crossed Scale, 1.0mm |
100 |
0.01mm |
| S20 |
68043-20 |
Double micrometer |
10 |
0.01mm |
| S21 |
68043-21 |
Micrometer scale |
100 |
0.5mm |
| S22 |
68039-22 |
Vertical Scale, 2.0mm |
200 |
0.01mm |
| S48 |
68041-48 |
No Coverglass, 1.0mm |
100 |
0.01mm |