Image resolution is an important consideration. The snapshots above show 4", 12", 36" per pixel resolutions scaled to the same size image from left to right . The higher the resolution, the smaller the field of view (area of the image). We can achieve extremely high resolution, better than 3" per pixel for those that need very detailed imagery.  Large-area coverage at any resolution is possible by digitally stitching many individual images to create large mosaics or composites.