Figure 4.

Images of a microscope slide coated with wheat starch acquired using a Leica microscope with a 40Xobjective with (A) no polarizers present in the imaging plane and (B) with a polarizer and analyzer crossed at 90 degrees in the imaging plane. For comparison, the reference an iPhone 5s utilized to acquire images of the same location on the wheat starch slide were acquired with (C) no polarizers present; and (D.) with polarizer and analyzer crossed at 90 degrees. In both setups, the polarized images illustrate the presence of a Maltese cross for each starch molecule.