Imagine interlocking your fingers together with your fingers facing dorsally. These are the "tips" of the aperture blades. When you look at your hands ventrally (palm side) they are smooth. NO, I haven't been drinking :).
An examination of some of my other Pentax lenses yielded the following: "Smooth side" facing forward: FA*24mm f2.0 FA 28-105 f4-5.6 Power Zoom FA 50mm f2.8 Macro Tips facing forward: F 100mm f2.8 Macro Still just wondering. Regards, Robert >From: "Robert Woerner" <[EMAIL PROTECTED]> >Reply-To: [EMAIL PROTECTED] >To: <[EMAIL PROTECTED]> >Subject: Aperture Blades on Different Lenses >Date: Thu, 14 Feb 2002 21:06:39 -0500 > >Does anyone know why the aperture blades are oriented differently on >different Pentax lenses? I was cleaning my M 50mm f1.4 and my FA 50mm f1.4 >and noticed this today. On the M lens the tips of the blades face forward >and the iris diaphragm appears "smooth" when viewed from the rear. The FA >lens is exactly the opposite. I hope this is an adequate description of my >observation. > >Just another stupid question. > >Thanks, > >Robert >- >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 . > _________________________________________________________________ Chat with friends online, try MSN Messenger: http://messenger.msn.com - 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 .
