1.7x is so close to 2x that it makes the camera display 2 stops. The difference is relatively small. Why you lose 2 stops with 2x converter is simple mathematics: the focal length doubles but the aperture stays the same. All the best! Raimo K Personal photography homepage at: http:\\www.uusikaupunki.fi/~raikorho
----- Original Message ----- From: "Nenad Djurdjevic" <[EMAIL PROTECTED]> To: <[EMAIL PROTECTED]> Sent: Monday, June 21, 2004 6:33 PM Subject: Re: 1.7AF adaptor query > > Jostein wrote: > > > > It says in the manual that the max aperture you can get with the converter > > is 2.8. It doesn't state the reason, but my guess would be that the > diameter > > of the glass in the converter is limiting. > > That makes sense but it doesn't explain why it adds 2 stops at every > aperture. >
