Chuck Norcutt wrote:
> Well, you always have to have the square root of two involved.
Why?
> For
> photographic use it puts them all one stop apart. Can't think of any
> other reason why sizing papers with that ratio would make any sense. :-)
>
> Chuck Norcutt
>
> Jez Cunningham wrote:
>
>> In the metric world, the common paper sizes are A6, A5, A4, A3 etc -
>> all these sizes have a constant ratio of 1 : 1.414 (pretty close to
>> 2:3)
keith whaley
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