| This flash was within a half-mile of our location, and so bright it saturated the imaging array; note the branching channel directed towards us and just to our left. The Coolpix 950 is limited to a maximum 8s exposure. Note that the brightest regions actually lost sensitivity (look slightly darker.) |
Film, with its logarithmic response, saturates at a much higher image brightness, so most of the channel can be resolved on the slide. The separation of the two cameras--only a few tens of meters--is sufficient to demonstrate significant parallax effects between the digital and SLR cameras. |
By scanning the image and applying a saturating exponential scaling function (see next page) to the color levels, we are able to reproduce the saturation effect seen on the digital camera. The same function was applied to the RGB channels for the purpose of this illustration. |
