Archived posting to the Leica Users Group, 1999/02/10
[Author Prev] [Author Next] [Thread Prev] [Thread Next] [Author Index] [Topic Index] [Home] [Search]- ---Alex Hurst <corkflor@iol.ie> wrote: >> I don't think it can be used in program mode because that would require the 3rd cam to transmit the aperture information while the lens remains wide open.<< Alex, You can use the R3 in the auto program mode with one or two cam lens. Here's how: In the auto program EVALUATIVE METERING mode you will need to keep the lens stopped down as you press the shutter release to take the shot. The internal computer will set the shutter speed based on the light being read through the lens. If you accidently release from stopped down before you take the shot the metering system will read full aperture light coming through the lens regardless where you have the aperture dial set. And because aperture information is not being fed into the metering system without the 3rd cam, should you release from stop down before you actually take the shot, the camera will stop the lens aperture down to where you have the aperture dial set and cause an under exposure because the shutter speed selected was based on a wide open aperture setting as far as the camera is concerned (even though the lens was stopped down at the time the actual shot took place). In the auto program SPOT METERING mode, however, it is not necessary to keep the lens stopped down provided you first depress the shutter release halfway to lock in the shutter speed (do this before you release the lens stop down lever). But remember that it will be necessary to continue to hold the shutter release halfway depressed until you actually take the shot so as to keep the computer selected shutter speed locked in. Regards, Don _________________________________________________________ DO YOU YAHOO!? Get your free @yahoo.com address at http://mail.yahoo.com