Archived posting to the Leica Users Group, 2003/01/14

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Subject: RE: [Leica] I eat crow
From: "Austin Franklin" <darkroom@ix.netcom.com>
Date: Tue, 14 Jan 2003 23:21:47 -0500

Hi Johnny,

> okay, that is somewhat different from what I envisaged. if you were to
> move the camera in a plane parallel to the plane of focus (or indeed
> the film plane, which is the same in a 35mm camera) then the eye would
> certainly still be in focus.

Exactly.  Thank you.

> However most people when reframing do rotate the camera about an axis.

Agreed, and that is why I specifically honed in on the specific word used on
that web page...shift...

> There is a third possibility when using a camera with shift capability,
> of course, which is to shift the lens. This is always in a plane
> parallel to the plane of focus (think about it!) so focus doesn't
> change at all. In fact, by combining camera movement and shift, you can
> keep the lens in the same place and 'shift' the back so the image
> geometry remains identical.

Hum.  I'll step to the side ;-)

Regards,

Austin

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