The light source of Nikon LS-8000 consists of glass bar transverse and over the path of the film holder. The RGB LEDs are at one end of the glass bar, which acts to integrate the three light sources. I measured the light intensity. Since the light source flashes, I used an integrating flash meter with a fiber-optic probe to measure the emitted light at various settings of analog gain. Here are the results (AG setting, EV): (-2, 0), (-1, 1), (0, 2), (1, 3), (2, 4). Negatives had an inverse relationship. I literally made hundreds of readings and got perfect consistency: if the first reading was a specific EV all subsequent EVs were the same for the same AG setting. Note that there was a perfect linear correlation between AG and EV. Increasing AG by one increases the light by one stop. I say this for one particular LS-8000, not any others or for the LS-4000. Dane Kosaka - Turn off HTML mail features. Keep quoted material short. Use accurate subject lines. http://www.leben.com/lists for list instructions.