Hi Peter, Welcome to the list!
When the indications in the finder twink it means that you are reading an amount of light outside the possibilities of the Z-1p meter. I'm sure no camera can measure light in a way it can take the Schwarzshild effect into account, BTW. The LX can expose for several minutes, so that the effect should induce strange behaviour in certain films, but I've had no experience of that. Gianfranco ----- Original Message ----- From: Peter Smekal <[EMAIL PROTECTED]> To: <[EMAIL PROTECTED]> Sent: Sunday, November 25, 2001 12:23 PM Subject: Schwarschild? > Hi, this is the first time for me in this discussion group. I start with a > question. > I recently bought what seemed to be the last Z1-p available in Sweden. It is > often described as an outdated model with an outdated auto-focus, but so far > I think it works great. I really like this camera. > However, when using the hyper-manual mode in certain "darker" situations - > inside churches for instance - both shutter and aperture numbers in the > viewer and the LCD field are twinkling. At the same time it is still > possible to find a suitable combination of aperture and shutter speed with > the help of the measurement scale in the viewer. So what does the double > twinkling indicate? Is the camera working correctly? > I have received different answers. One of the Pentax-people in town told me > that the twinkling of both figures is just a warning to use a tripod or a > flashlight, another one told me that is means that you are outside the > measurement area of the camera. Somebody explained that it had something to > do with a "Schwarzschild-effect" and that the exposure measurement is > outside the "linear are". What is true of all this? > T i a > Peter > [EMAIL PROTECTED] > - Yahoo! GeoCities - quick and easy web site hosting, just $8.95/month. http://geocities.yahoo.com/ps/info1 - This message is from the Pentax-Discuss Mail List. To unsubscribe, go to http://www.pdml.net and follow the directions. Don't forget to visit the Pentax Users' Gallery at http://pug.komkon.org .
