make a somewhat larger initial investment, he will do well to buy a
camera of the so-called "reflex" type. Despite its greater weight and
bulk, as compared with pocket cameras, it has the advantage of showing
the picture full size, right side up, on the top of the camera, until
the very moment that the button is pressed. These reflex cameras are
equipped with the fastest types of lens and shutter, and thus are
particularly well adapted to poorly lighted and rapidly moving objects.

A tripod should be used whenever possible. A hastily taken snap shot
often proves unsatisfactory, whereas, if the camera had rested on a
tripod, and if a slightly longer exposure had been given, a good
negative would doubtless have resulted.

REQUIREMENTS FOR PHOTOGRAPHS. All photographs intended for reproduction
by the half-tone or the rotogravure process should conform to certain
requirements.

First: The standard size of photographic prints to be used for
illustrations is 5 x 7 inches, but two smaller sizes, 4 x 5 and 3½ x
5½, as well as larger sizes such as 6½ x 8½ and 8 x 10, are
also acceptable. Professional photographers generally make their
negatives for illustrations in the sizes, 5 x 7, 6½ x 8½, and 8 x
10. If a writer uses a pocket camera taking pictures smaller than
post-card size (3½ x 5½), he must have his negatives enlarged to
one of the above standard sizes.

Second: Photographic prints for illustrations should have a glossy
surface; that is, they should be what is known as "gloss prints." Prints
on rough paper seldom reproduce satisfactorily; they usually result in
"muddy" illustrations. Prints may be mounted or unmounted; unmounted