For closeups put a moveable magnifying glass on your screen.
A free, open source, screen magnifier, for Windows, Linux and FreeBSD.
Virtual Magnifying Glass is designed for visually-impaired and others who need to magnify a part of the screen. Unlike most similar programs it does not open a separate window for the magnification but instead puts a movable magnifying glass on screen.
Operating System: 32-bit MS Windows (95/98 ), All 32-bit MS Windows (95/98/NT/2000/XP), OS Portable (Source code to work with many OS platforms), FreeBSD, Linux
License: GNU General Public License (GPL)
Category: Graphics, Other/Nonlisted Topic
http://magnifier.sourceforge.net/