I think you're right. The camera processor probably controls the DOF and it does work in Tv and P modes.

At 11:37 AM 1/6/2003 +0100, you wrote:
So the button simply short-circuits the motor that stops the lens down?
I figured it would release a signal to the CPU which would then give a signal to the motor to stop it down, since some people claim on some cams it also stops down in Tv or P? Surely I can be wrong :)

Rod.



----- Original Message -----
From: "Pat White" <[EMAIL PROTECTED]>
To: <[EMAIL PROTECTED]>
Sent: Sunday, January 05, 2003 11:53 PM
Subject: Re: which AF body has hyper-program/hyper-manual


> Rod, I don't know why it's called "electronic" DOF. It seems more like
> "electric" DOF, since you just operate the control and the lens stops down,
> just like using a lever. No more, no less.
>
> Pat White
>
>
Outside of a dog, a book is man's best friend.
    Inside of a dog, it's too dark to read.  --Groucho Marx

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