In article <tcb704dutte32pjs3cc602rstt8dfvbqn9@[EMAIL PROTECTED]
>, tony cooper
tony_cooper213@[EMAIL PROTECTED]
says...
> On Mon, 14 Apr 2008 10:22:06 -0800, floyd@[EMAIL PROTECTED]
(Floyd L.
> Davidson) wrote:
>
> >tony cooper <tony_cooper213@[EMAIL PROTECTED]
> wrote:
> >>There is a surface
> >>within the camera, but the plane passes across that surface just as
> >>the line extends.
> >
> >So? You are merely repeating what he said, not adding
> >to it.
> >
> >>The focal plane is still the focal plane where it
> >>is not passing across the surface.
> >
> >A fact that merely repeats what he said above.
>
> And he is now repeating what I said earlier. Go back and read the
> posts where I pointed out that the mark on top of the camera
> identifies the focal plane position.
This is actually what was said:
Me : ... a plane is a plane, not a line.
You: Of course it is a line. The line is indicated by the focal plane
mark on the top of most slrs.
You went on to say "There are no objects involved in
the focal plane other than the point on the camera where the focal
plane is determined. That is a point, and not a surface."
So according to what you have written the plane dwindled from a line to
a point, before suddenly and somewhat unexpectedly blossoming into a
surface.
>
> A plane can be a solid surface, but a plane is also extended to the
> area where there is no solid surface.
A plane is two-dimensional. Solids are three-dimensional. You're
really not comfortable with Geometry 101, are you?
> That's what I've been saying all along.
Where did you say that (before the post that Floyd commented on)?
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