The FN1 microscope exhibits virtually no electrical noise and vibration-free operation, and provides maximum open space for working around a specimen or whole animal with easy access to manipulators, stimulators and flow chambers. A new set of physiological water dipping objectives feature working distances of up to 3.5 mm, with slimmer profiles, a 45-degree approach angle for easy access of manipulator patch needle placements, special coated top lenses to prevent bubbles, and new axial chromatic aberration correction for visible to near infrared imaging. To enable deep penetration optical contrast techniques, an IR wavelength selection turret provides high contrast selection of visible, near IR and IR DIC image modes. A 100× 1.1 N.A. objective with a working distance of 2.5 mm incorporates a correction collar to control spherical aberration and provides compensation for physiological temperature and specimen thickness variation. Large structures, such as the hippocampus, as well as small structures, such as axons and dendrites, can be imaged with the same lens. Nikon Instruments Inc. 800-645-6687 www.nikonusa.com