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Leica M series Manual 14
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 toward the observer.
Limits are made to be broken.
The Leica M205 C is the world's first stereo-
microscope with a zoom range of 20.5:1. This
accomplishment, however, was not enough for
Leica's engineers. With the new FusionOptic™ in
the M205 C, 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 corresponds to a resolved structure size
of 472 nm.
Of course, this performance increase benefits
your everyday work. Set up your specimens
on the microscope with comfortable freedom
of movement and discover details in stereomi-
croscopy that you could never see before.
* Leica M205 C with 1.0× planapochromat and 10× eyepieces