Hmmm .... I see where the confusion came about. I sort of misspoke/mistyped. Although many/most variable focus lenses these days are also variable aperture, but nit always. Glad we cleared that up for frank and anyone else who read that.
Shel > [Original Message] > From: mike wilson <[EMAIL PROTECTED]> > To: <[email protected]> > Date: 5/19/2005 6:00:55 AM > Subject: Re: Re: Understanding exposure? Recommendations? > > > > > > From: Doug Brewer <[EMAIL PROTECTED]> > > Date: 2005/05/19 Thu PM 12:44:38 GMT > > To: [email protected] > > Subject: Re: Understanding exposure? Recommendations? > > > > On a lens that changes from 4.5 on the short end to 5.6 on the long end, > > it's difficult to ascertain exactly where it changes, so you don't know > > which value is being used, thus making it harder to determine the exact > > exposure. > > > > At least, this =seems= to be what Shel means. > > So variable _aperture_, not focus.......
