On Jul 23, 2005, at 1:36 PM, Cory Papenfuss wrote:

... Basically, it is making a body that has "built-in" a "negative- length" macro tube. It comes with a macro tube on it of the same length. If you choose to *remove* that macro tube, you get wider FOV (with a focus shift, of course). ..

This makes no sense.  You don't seem to understand how lenses work.

Godfrey

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