tony cooper <tony_cooper213@[EMAIL PROTECTED]
> wrote:
>
>Sufficient, if you followed the link, to define that a focal plane is
>not a surface.
A plane is a surface by definition:
Plane \Plane\, a. [L. planus: cf. F. plan. See Plan, a.]
Without elevations or depressions; even; level; flat; lying
in, or constituting, a plane; as, a plane surface.
Note: In science, this word (instead of plain) is almost
exclusively used to designate a flat or level surface.
The focal plane for a camera is indeed a "flat or level surface".
>> I'm starting to wonder if
>>there's any point trying to have a sensible conversation with you about
>>this when you seem to have the basic concepts so muddled, yet are so
>>convinced that you're talking sense. Why don't you show me something
>>that shows that a plane (focal or otherwise) is not a surface?
>
>Read the definitions that I linked to.
Every single example your google search turns up says
that a "focal plane" is a plane, and that is a surface.
By definition!
--
Floyd L. Davidson <http://www.apaflo.com/floyd_davidson>
Ukpeagvik (Barrow, Alaska) floyd@[EMAIL PROTECTED]


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