I didn't know that about the M lenses. I've played with lenses of several different brands and there didn't seem to be any real consistency in how far the lever moved from full open to full closed. On an M lens why would you care if lever travel was proportional to anything? It is only used in one of two positions anyway.
Don > -----Original Message----- > From: Mark Roberts [mailto:[EMAIL PROTECTED] > Sent: Thursday, May 26, 2005 8:46 AM > To: [email protected] > Subject: Re: "A" need > > That's it: With K/M lenses the movement of the lever is directly > proportional to aperture diameter, with "A" and later lenses it's > directly proportional to aperture *area*. > > -- > Mark Roberts > Photography and writing > www.robertstech.com >
