The times. [volume] (Richmond, Va.) 1890-1903, 1897-02-12
.u,,ocr.pHING ~ wIRh.
Something About the Newly in''"''
Telephoto Machine.


TeIephoto Machine.
.,Ao Saturday morning lectures oil 'ne
e,,,e BOARD of Education delivered 'l ''''
,t.,sar,, NJ Natural History in the Zen
81 p.rk are illustrated boy "A seTie" Vi
-, lantern views taken from pho'o-
49, ID. last summer for the muse
um's purposes. ..,.o,, g., the Wind
Tho pictures We're taken ni s-,,t.l,d
ward and Lccward lsl""uS' So nm
Mexico. Colorado and Arizona ~
- ~ th,se views were taken Joy Ut. -
t,,.,l,dorf who used 60 the worh IL
,,,s process OF photography VINO" ii.'
- mad "a trial so complete as l""'
mich b. was able 10 give 10 in TINS eNp.
Tt.fo, IN collect pictures for the must
INNS lecture courses. -t
The machine Or. Elmendorl eIHp'os g"
is not altogether a new one, anu H.
as far back as 1891 in London th"I 'l9
apuaratus called the teiephoto was III
vented by Dallmeyer. ,-..... cont
mo 0rst machine of the kind ever sen.
IN This country came 90 Dr. Elnehuoi
inn l,g2 aud he has been AN enthusiasm
advocate of the apparatus mell'9 9't'
that time. At his suggestion the o'i5
nal telephot0 was sinplihed so as 10 nam
IL "a small and convenient lnall "ii''"''
which produces the wonderful el''lS "'
photography without amy greater pi'Il-
ration or trouble-Or at most Win N'is
little moro-than 70 takes TO use an ora
-. c,.roera. But Dr. ElmendOrf has
'',,..o,9od in pbotoeraphing al distance
of fortv-tvo miles the Alps OF the Der
n4se Oberllnd. and one of tine Vows is
tb. Jungfrau. photographed from the
town of mterlaken. at least twenty-iour
miles from the mountain.
The viows shown here are taken WIN
a tx5 Dallmeyer lens, both with ana WIN
out the telaphoto attachment.
one of the particular advantages 10
science of the new plan Is shown lh views
NJ the Iunzfrau made by Or. Elmendorl.
The possibility of photographlns IRON
distances objects which IL taken az SHOT
range. would be thrown out or an per
sDectlve. IS one Of the greatest Things llal
tho apparatus makes possible. Inc i"l N9
view OF the Jungfrau was taken az oia-
lance Of twcnty-four miles. ana the PIC
ture shows the proportions or the Vie"
just as they exist.
The machine that accOmplishes these re-
suits is "a cylinder only a few inches long
that is applied 20 the camera. ii consists
Of A negative lens which Is attached 10
the rear of am ordinary rectilinear photo
praph lens. The tclephOto lens causes the
rays convercing from the Photographic
lens To diverge more or less thus. as II
We're. lcnqthening the focus OF the photo-
graph lens
one of the great advantages OF this
ARRANGEMENT is that with camera bel
lows only fourteen inches long one gets
the effect Of a lens Of forty-inch FOCUS.
Another advantage is that the lens can
4. .l..f ftN
4 subsequent possibility for which the
telcphoto may bee utilized is to take pic
lures OF birds I'm flight and although they
had not been included by Or. Elmendorf
I'm his work. he believes that 10 can Dee ace
c0mplishcd The use OF the telephoto has
not grown much during the five years of
IFS existence. chiefly because 10 requires
Am extremely careful worker. and because
the use of the attachment causes some
times an undue vibration
The views made for the museum last
summer included "a great variety or
scenes and their great effectiveness was
due 10 tho use Of the tclophoto. which
reproduced with particular beauty some
Of the mountains of Mexico. although
there are also views Of towns and viii
lagos taken with the teleohoto.
The kite photography is i'm no sense the
same thing as telephotography. Kite
photography aims 10 take birds eve views
Of towns or sections of country. while
the telephoto photographs AZ distance
the objects that cannot be truthfully re-
produced II IL is necessary to take view
Of them an short range.
The picture Of the Jungfrau which was
taken by Or. Emendorf would have re-
quired. he said. an ordinary camera four
feet long whereas the little telephoto ac-
complished tho task easily The view Of
tho houses shows them taken with and
without the telephoto attachment-New
York Sun.