Leica M205 FA user manual Step Towards Infinity, Limits are made to be broken

A Step Towards Infinity

Ever since their introduction by Horatio S. Greenough, stereomicroscopes have worked according to the optical principles based primarily on Ernst Abbe's research. For over a century, ingenious optics designers and engi- neers have worked to push magnification, reso- lution and image fidelity to the limit permitted by optics.

In doing so, they have always been constrained by the interrelation between three factors: the higher a microscope's resolution, the lower the available working distance. If one increases the distance of the optical axes, the three-dimen- sional image seen by the observer becomes distorted—a sphere becomes an ellipse, a flat surface curves towards the observer.

Limits are made to be broken

The Leica M205 FA is the world's first fluores- cence stereomicroscope with a zoom range of 20.5:1. This accomplishment, however, was not enough for Leica's engineers. With the new FusionOptic™ in the Leica M205 FA, they have succeeded in going yet another step beyond previous limits. In addition to the increase in magnification, the resolution, too, has been increased to up to 1050 lp / mm, which corre- sponds to a resolved structure size of 472 nm.

Of course, this increase in performance benefits your everyday work. Set up your specimens on the microscope table with comfortable freedom of movement and discover details in stereomi- croscopy that you could never see before.

* Leica M205 FA with 1.0× planapochromat and 10× eyepieces

Leica M-series User Manual 14