Richmond dispatch. [volume] (Richmond, Va.) 1884-1903, 1899-01-29

presents 10 the eye Photographic views
Of objects I'm motion; and il is the muto-
graph which takes the pictures for both.
said this gentleman in conversation with
the writer. And the BITTER 10 make his
explanation clear he led tho way 10 an
upper floor, whore a autograph was 10
be seen. 1t was a cabinet on a tripod,
with a very rapid lens. that was large
enough % "c0vor" a plate Of great size.
but which was only required ~ pick out
the best part Of the subject. in order that
the image might be thrown upon a very
highy-sensltizod gelatine film. travelling
at tremendous rate between rollers
from one drum 10 another. and passing
behind the lens with a constant. instead
Of continuous. motion. At each stop upon
its journey the film would thus receive
picture. But the halts are not percepu-
bile 10 the eye and the movements Of the
shutter, alternately admitting and eX-
Guiding the light, appeared. upon watch
Ing it's action, 90 bee absolutely uninter-
rupted when the solid machinery. actu-
ated by description of q stationary BIZ
cycle was driven no It's highest speed
AOu can understand that the exposure
must be very short-from l-2l0th 20 1-f0Jth
part of a secOnd-When ] ten you that
the impressions are taken at the average
rate of seven 10 eight feet "a second. I'm
q length of 200 feet there would be- 1900
pictures OF small lantern size some
subjects required fully 600 distinct photo
graphs. In photographing. say, the flight
Of o. projectile. loo images per second
would be stored upon the film"
1T is not yet within the reach OF tho |
amateur to take his own phOtOgraphsY |
was the suggestion
by way Of reply 10 this question a case I
was presently eXhibted-not much larger 1
than an ordinary hand camera. from |
which projected n handle. with this in- |
perfected, il Will II seems. soon /
be possible for any photographer % secure !
records, not only OF OIia momeutary /
pose. but Of n whole episode. What a |
terrible engine for evidence making in |
the hands OF a skilled detective. But. !
for the present the propriet.Sy company. /
with others associated take the negative |
films and exchange them. America and |
practically the whole Of Europe very
shortly will De rausacked for subjects by |
expert mutographists. SO that no event Of I
interest can pass unrecordeG By them.
1t would take more space than can 4
here be afforded 10 follow the light. tight |
box containing the exposed films % the /
dark rooms. from which white light is /
risialy excluded. i'm order 10 describe the /
successive processes of developments !
washing, fixing. and drying Go which the
negatives must bee subjected. The films
are wound round huge reels. and the
reels are revolved through baths I'm
which the chemicals are contained. The
bromide print.ng-which is chosen bee
cause il can De done by artificial Lights
accomplished by electrically controlled
machinery, and the latest invention is
capable of turning ont 1850 pictures an
lour 10 is wonderful thing 20 note how
he brilliant white light is admitted for
IN instant or two. ana how the machine
ONES TO a standst.u Of its own accord.
should nything Dee wrong
Between the biograph and the muto-
cop. there is this dlGcrence-the former
cquircs It's pictures in the form Of a long
"trip Of colluioid. which is passed between
very powerful electric arc-lamp and
he lens al q rate corresponding with
hat al which the gelatinc finn travelled
trough the camera; but tho mu-Osc0ps
las the series OF prints To- 1900 in
i'm consecutive Qrdo-
round a cylinder, standing out Ike the