Getting slow shutter speeds with cell phone cameras
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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...