Properly calibrated they do not overexpose, much. The story that they are all slow is just a fiction from people who checked them with a shutter speed checker and did not compensate the increase in efficiency at high speeds. If you think a minute you will realize that a leaf shutter takes the same time to open and close at all speeds, but the percentage of the total time open is higher at higher speeds. That means that if you don't take that into account the shutter speed will appear to be slower than it is and hence the supposed overexposure. In fact, that is not true in reality if the shutter is properly calibrated.
Ciao, Graywolf http://pages.prodigy.net/graywolfphoto ---------------------------------------------------------------- ----- Original Message ----- From: Shel Belinkoff <[EMAIL PROTECTED]> To: Pentax List <[EMAIL PROTECTED]> Sent: Sunday, April 07, 2002 10:20 PM Subject: Leaf Shutters > I believe that there are some leaf shutter lenses for the 645 and the > 6x7 Pentax cameras. In several places it's been noted that at higher > shutter speeds (1/500) leaf shutters tend to overexpose, due to the way > they're designed. Has anyone here experienced this? About how much > overexposure have you noticed? > -- > Shel Belinkoff > mailto:[EMAIL PROTECTED] > http://home.earthlink.net/~belinkoff/ > http://home.earthlink.net/~belinkoff/darkroom-rentals/index.html > - > 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 . - 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 .
