I would have thought - with the vast experience you have - that you would have noticed the characteristic peculiar to zoom lenses: when zooming the angle of view changes and with it the area measured by TTL exposure meter also changes and if the area measured is not uniformly lit or uniform in colour the exposure reading tends to change. Hope this helps. All the best! Raimo K Personal photography homepage at: http://www.uusikaupunki.fi/~raikorho
----- Original Message ----- From: "Frantisek Vlcek" <[EMAIL PROTECTED]> To: "Raimo K" <[EMAIL PROTECTED]> Sent: Friday, July 02, 2004 1:49 AM Subject: Re: M80-200 vs F70-210 ? > RK> zooming - with constant aperture zooms as well as variable aperture zooms. > > Hi Raimo, > I am sorry for Andre that the thread has evolved into this, but > could you please tell me how constant aperture zoom changes > exposure during zooming? I would really like to know that. > > Best regards, > Frantisek Vlcek >
