METHOD FOR LEARNING

Convenient as possible, after making several
changes.

The first is undoubtedly preferable to the second:
it is more stable; it makes the work easier and more
precise, and it is easier to repeat gentle cuts.
Add to this that with very small changes,
one could make it usable for the few uses that are
specific to the second machine, and which are generally of
little consequence. However, since this last
machine is simpler, much less expensive,
and more portable, it was thought appropriate to
also provide a description of it in this Chapter.

We will not dwell on praising the advan-
tages these machines can offer to Painters
and Artists; it will only be noted that they are
very useful for combining several separate objects into one painting.
One paints as much as possible
from life; but it is quite difficult, when one is not
versed in Perspective, to give several objects
represented in their painting their true size, considering
their distance, and to bring them all to
one point of view, and this is carried out very easily
by means of our machines. The viewpoint
is always the same, as long as one does not change the
position of the convex glass; and the size of the
representation of objects depends on their distance
from the machine.

NOTE.

It can be noted regarding the camera obscura,
that several Flemish painters (according to what is said)

Translation Notes:

- "Chambre obscure" translates to "camera obscura," a historical optical device.
- The term "perspective" refers to the technique used in art to represent three-dimensional objects on a two-dimensional surface.