Los Angeles herald., 1910-06-12
ART-PAsT,ME OF rno roeRArnr

Maiea ~ use COIor screen expos
lns Aor sUlIe pAotosrdpnlc SUBJECTS.
Al tne nrst pace, we wnl ASK what
- d CuAUf SNLSeli! sO4IIc tIiIles Calluu
a ray inter. "A screen Ur mater cons4sls
usually "a careIuiIy gIounu glasses Le-
l"oe.4 twU pieces VI w444cn - sanu-
MIcneu a coating or yelIoW transparent
SuDSIoilNc, WlIiCII aUsOrUS LIIe una
aclIve nays oL r5hU anu SO retarul4g
Their acLIUn on lue nm or pIaIe lndl
liiese 40 NOT oNerImpreSS uneIr power
~ me uSttIiiieilL "a less aclIYe ldyS
as the more acLive rays IN Landscape
SUBJECTS are lnuSe prUJeCleu from oD-
JectS dL ConSIueIdUIe uis.aIiCeS from
LIe camera, IL Ionows tnaC IL you eA-
pose suitably Tor foreground and md
Instance, lnUse IN the extreme distance
suCn as Iuund IN ranges OF niIs or
mountains, frequently can uareIy be
traced upon the developed negative,
lnese beng 50 dense as TO be Iost III
the geneIaI DARKNESS representing the
Shy, ana we nave a PRINT LnereIrom
showing ntLle or noInIng peyOnu the
OBJECTS in foreground or mId-alstance.
II we reverse our exposure and time
for the greater distance correctly our
foreground will not receive enough ex-
posture ana suffers loss or oeIaiI. by
pacing screen before the lens we are
dDIe 10 restore a DelLer visual balance
TO our picture and give a cnance to
edcn distance TO become relatively
eVened up and give us d negative
showing our landscape much more nat
uralIy. screens may be ODlalned OF
various densltles, requiring from three
10 twenty times the normal exposure;
d good screen for general use need not
require more than eight times normal
exposure, Such as the Ingento, wnle
Tor even shorter increase Is the Ideal,
requiring only five times more exposure
TO gain good results.
Inc writer has before him two prints
from kodak film negatives of a very
charming little landscape taken within
thirty minutes ride from the center OF
Gown, consisting of a country road,
.weeping from right to lett oDliquely,
then patch or brown grass with "a
few dark green trees; beyond these d
loW-lylng orchard with farmhouse
and outpuildings, just beyond which
stretches an ood SNAPPED lake and on
the further side OF this a low range
OF hills fianked by the semimountain
range in Griffith Park. One picture
was made with a screen requiring ten
times normal exposure, the other with
out screen. Both were made with di-
aphragm F22 with a t12-inch homo
centric lens. In the case of the nom
screened picture the trees and varying
colored surfaces OF the hills appear fiat
and with little indication of the undu-
lations in the hills, while the distant
mountain range only gives faint in
dication of it's existence. On the other
picture every little difference in the
tones of the hills and scattered trees
and haycockS shows distinctly against
the broWnish ground color and the far
thest range looms impressively against
the skyline and an additional range
between the other two appears mark
edly, which does not appear at all in
the other. No one could compare the
two for beauty and reality. The un-
screened film received 1-10 second and
the screened 1 second exposure at about
4:30 .. m. on a haZy day in which
even the eye failed to pick out many
small objects on the rolling hillsides.
A tripod is naturally necessity with
the longer exposures, but who would
cavil at carrying such a slight addi-
tional burden in view of such results?
In photographing flowers especially
the screen is invaluable if truthful rep
resentation IS desired. Blues, purples,
yelloWs and reds are rendered so much
nearer their visual appearances that
here again comparisons are odious.
For portraiture, if ones victim can
be persuaded to keep still for just
very few seconds, far more pleasing
result can be obtained, especially in
the case of those of fair hair and blue
eyes. With very little practice every
user of a camera can become proficient
in working with filter and secure re-
suits that tantalize the less interested
or patient "snapshotter."
FREDERIC W. NORMAN.
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