Re: Bridging the Terminology Gap using OWL ... an exciting example (updated)

[Roger L. Costello]
> Here's the info on cameras:
>
> + This triggers a thought on "macro" and "micro" lenses. Often either
> word is used to describe the same kind of lens, one that "magnifies"
> image to life size or half life size. Often you'll see a ratio like 1:1
> or 1:2. Again, there may be issues here of "greater" or "less" than
> depending on how one interprets the numbers. Also, macros are typically
> available only in a few (one to three) focal lengths for a given film
> format.
>

Also, "macro" basically refers not really to magnification per se but to the
ability to focus on subjects very close the the lens.  Some lenses have both
a normal and a macro mode.

Cheers,

Tom P