>Oh, my finger ran to the send button with only one word in the message, >ok I want to tell you a problem that noticed months ago with my Z1p and >last week with 645n and MZ-S; if you mount the lens, and (without making >excessive strength) turn it out a like to right side you will notice how >it have a lite looseness, and it is ended in a increase of half of a >stop of diaphragm readout, you put F8 on the lens and you have F9,5 on >viewfinder. >Anyone else with this problem?? You know if other brands have the same >problem??
I believe this is due to the fact that when the lens rotate, it moves the aperture coupling mechanisms too. However, this problem does not happen on every lens or camera, even the same model. I "believe" the slight incorrect aperture reading was the result of "relatively" loose manufacturing tolerance. Obviousely, Canon and Minolta AF systems do not have this problem because they have no aperture coupling mechanism like Nikon and Pentax do. regards, Alan Chan _________________________________________________________________ Get your FREE download of MSN Explorer at http://explorer.msn.com/intl.asp. - 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 .
