----- Original Message ----- 
From: "Boris Liberman" <[EMAIL PROTECTED]>
To: <[EMAIL PROTECTED]>
Sent: Tuesday, 19 August 2003 4:37 PM
Subject: Re: Views on the F 70-210


(snip)
> Still, I am curious - what is the difference then between F and FA
> lenses? Something to do with the way FA lenses "talk" to the camera
> body?
>
(snip)

Just guessing, but I think the FA series introduced MTF chips in the lenses,
which let the camera bodies know the optimum aperture value for the distance
focused.

regards,
Anthony Farr

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