These fisheye lenses are designed to support MegaPixel resolution cameras across a 185° field of view. Their large depth of field eliminates the need for focus adjustment, and allows the lenses to be sharply focused between 100mm and infinity. A lockable iris adjustment enables control over the exposure without changing integration time, and stays locked in place to prevent accidental alteration. This lens is excellent for space-constrained applications where large fields of view are required at short working distances. *FOV for ½” format sensor.