Traditional cameras bring a picture into perfect focus on a flat plane, but with an image this large, aberrations in the lens glass make that impossible. Instead, we use multiple lenses to bring our image into focus. First, a spherical objective lens captures the whole field of view. Then, the 98 microcameras automatically bring subregions of the image into perfect focus and exposure. The field of view of each 14-megapixel microcamera (that's 10 times HD) overlaps with other microcameras' fields of view, so we can stitch the images together into a full frame 120 degrees wide and 50 degrees tall.