Getting slow shutter speeds with cell phone cameras
Android (top), DSLR (middle), and iPhone (bottom) cameras varying shutter speeds. Shutter speed, aperture, and ISO are the three core parameters controlling light. Traditional cameras have a means to vary all three of those parameters while cell phones can only alter two. Apertures are fixed in most cell phone cameras, usually around f/2 give or take a bit. This poses a rather large problem when it comes to controlling shutter speed. Since traditional cameras have the ability to control aperture, they can vary shutter speeds by a wide margin. In the center images above, I photographed a scene using a DSLR camera with a wide open aperture (left) and a small aperture (right). This resulted in shutter speeds of 1/80th and o.4 seconds respectively. The blurring effect that a slow shutter speed has on moving water is often striking, no less so in this case. It is a technique I often use when photographing fast-moving water. Reproducing this effect is more complicated in cell phone ca