> The focal length gets shorter. An internal focusing lens is sort of a > limited zoom lens.
I know the focal length gets shorter, but I want to know how much, i.e. a mathematical equation. Frank - This message is from the Pentax-Discuss Mail List. To unsubscribe, go to http://www.pdml.net and follow the directions. Don't forget to visit the Pentax Users' Gallery at http://pug.komkon.org .
