These images of industrial foam were captured using the Meiji EMZ-5 stereo microscope with light shining up through the foam from beneath the stage. The Meiji PBH stand allowed us to utilize the bottom light only to back-light the foam.
This coarser foam was captured using the Moticam MC2000 camera. The camera was placed over the eyepiece, which had a measuring reticle installed in it. This reticle was used in order to capture each image with the ruler imposed on it. Although the software that is included with the camera will make measurements, we wanted to have the ruler automatically placed upon each captured image.