On 12/29/06, Colin Talcroft <ctalcroft@yahoo.com> wrote:
>
> I suspect that the question may not be clear. An
I'm not sure if you're trying to get the same angle of view or the
same reproduction ratio.
The angle (or "field") of view is "the extent of a given scene that is
imaged onto the film or" (taken from the Wikipedia page on the
subject: http://en.wikipedia.org/wiki/Angle_of_view). I believe that
Pinhole Designer has an angle of view calculator built in
(http://www.pinhole.cz/en/pinholedesigner/).
The reproduction ratio is simply the ratio of the actual size of an
object to the size of the object on the negative. In some book I have
the formulas necessary to compute reproduction ratios, which will in
turn allow you to compute the size of objects on the negative. I can
look them up if you like.
//jason
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Received on Thu Dec 28 23:28:30 2006
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