In Olin 318 we have research microscopes set up for transmitted and reflected light petrographic and photographic work. Both microscopes can be used with the two available cameras. A dedicated laptop computer runs the image acquisition software.
- Point counting.
Here are the diameters of the round fields you see by eye, and the widths of the images the Paxcam camera acquires:
|BH2 reflected light|||||BX41 transmitted light|
|Objective||Field diameter||Camera image width|||||Objective||Field diameter||Camera image width|
|2.5x||6.2 mm||4.6 mm|||||2x||11 mm||8 mm|
|5x||3.1 mm||2.3 mm|||||4x||5.5 mm||4 mm|
|10x||1.6 mm||1.2 mm|||||10x||2.2 mm||1.6 mm|
|20x||0.78 mm||0.58 mm|||||20x||1.1 mm||0.80 mm|
|50x||0.31 mm||0.23 mm|||||40x||0.55 mm||0.40 mm|
|100x||0.16 mm||0.12 mm|||||100x||0.22 mm||0.16 mm|
Note: Keep the microscopes covered when not in use. Thank you.