----- Original Message ----- From: "Raimo Korhonen" <[EMAIL PROTECTED]>
(snip) > Its hard to imagine why one or the other would be for 3D subjects and the other... forget it. > (snip) Raimo, Quoted from the operating instructions booklet for my Sekonic Digilite F L-328: "LUMISPHERE - Use the Lumisphere when you wish to measure incident light for portraits and three dimensional subjects. In case of incident light measurement, point the Lumisphere accurately toward the camera from the subject position. LUMIDISC - Use the Lumidisc to measure illumination contrast or lux as well as exposure of single-dimensional subjects*. Measuring position is the same as for Lumisphere." * I presume they mean flat subjects and this is a typical example of Engrish. At the college where I trained as a photographer, the standard light meter (which we had to purchase ourselves) was either a Weston Euromaster or a Gossen Lunasix. These had no flat discs, so we learned to measure lighting ratios with the incident dome (called Invercone on the Weston). Thus it is usual for me (and quicker because it avoids a change of attachment) to measure lighting ratios with the Lumisphere. It just means that I need to take more care of light from another source spilling into the reading area, so I usually only turn on the lights being measured which is more accurate in a studio anyway. Just goes to prove that: - You can't know everything, and; - There's more than one way to skin a cat. regards, Anthony Farr
