|
The
standard fine and coarse focus
system consists of two separate knobs. The larger one is
the coarse focus and the smaller one beneath the stage is the
fine focus control. |
The
coaxial fine and coarse focus
system on the Plus models has the fine and coarse
co-located together. The outer part of the large knob is
the coarse focus and the inner part is the fine focus. (The
knob to the far right controls the mechanical stage.) |