Kodak No. 2 Folding Pocket Brownie - p-62

Clean Lenses
Dirty or dusty lenses are frequently the cause
for photographic failures. These pictures illus-
trate this ' point clearly. The sharp, full timed
picture at . top was
·-=-·=.~·;:;;c~-,-,-"·-~·~ taken with the lens
clean and in good
order. To produce
the effect shown in
the picture at bot-
tom, the . operator
lightly touched the
face of the lens with
his thumb, which
CL EAN LEN S WaS slightly damp
with perspiration.
Lenses should be frequently examined by look-
ing through them, and if found to be dirty,
should be wiped, both front and back, with a
clean, soft linen
handkerchief .. I t
is
well also to oc-
casionally wipe out
the inside of cam-
era with a slightly
damp cloth. In
summer weather
this needs special
attent i on. Large
spots of du st or dirt
on the lenS Wil.l DIRTY LENS
cause defects in the picture, while if the lens is
evenly covered with a film of dust, dirt or mois-
ture, the effect will be to cut off a great deal of
light and make the picture undertimed.
62