  In our previous published research we have studied the applications of the
ferrolens for the observation and qualitative analysis of non-homogeneous
magnetic fields. Latest developments over the last few years of the ferrolens
increased multifold the sensitivity of this device allowing it to display
magnetic fields as low as 10mT in strength and therefore it is possible now to
observe also the homogeneous (i.e. straight parallel magnetic flux lines of
uniform density in space) magnetic field existing inside air solenoids and
between N-S poles of two attracting separated permanent magnets. We present and
analyze herein these novel observations of homogeneous magnetic fields with the
ferrolens and as a potential new application of this device. The ferrolens can
now display the projected magnetic field on air from a distance without needing
to be in physical contact with the field source. Experiments were carried out
to demonstrate these new capabilities of the ferrolens as a nanomagnetic flux
viewer, real-time physical device and scientific qualitative tool. We compare
the geometry of magnetic fields of condensed matter ferromagnets with that of
magnetic fields inside electrical air solenoids. Specifically, the homogeneous
field between two N-S attracting magnets at a distance as well as inside air
solenoids and Helmholtz coils and also the non-homogeneous total field of
single dipole permanent magnets were observed using a latest generation very
sensitive ferrolens. The unique feature of this magneto optic fluid thin film
physical device is that it can display discrete magnetic flux lines of the
macroscopic field. Also we show how the ferrolens can be used to detect
qualitatively the symmetry center of a non ideal homogeneous magnetic field.
