Film cameras
Senica vest pocket User manual
User manual for Senica vest pocket. 15 pages in English. Read the original PDF, download or print a copy without registration.
15 pagesEnglish2.5 MB PDF
Loading your manual…Open PDF directly
Document details
- Brand
- Senica
- Model / document
- Senica vest pocket
- Document type
- User manual
- Language
- English
- Pages
- 15
- File size
- 2.5 MB
- Category
- Film cameras
- Document date
- Not specified in catalog
Search available document text
Find a term, then jump to its page in the original PDF. Image-only pages may not be searchable; check the PDF for exact wording and diagrams.
Page 2 · Read text
II
:
Sp"cify
No. 254 Vulcan
Contents
For your VBST PocKET
SnNECA. The uncertain- Part l-Loading the Camera ty of getting the correct
film for your camerawill Part ll-Makitrg the E*posure
be gone if you Part III-Removing the Film
Part lv-Developirg the Film Order Film by
Number Part V-Makittg the Prints
NOTICE
Vest Pocket Seneca Cameras Accommodate
withnqo1lft::"jr Fouowing
;ifi
No. L27 Eastman Film
No. 2C Ansco Film
No. lJ Ensign Film
{View original page 2Page 3 · Read text
Before Loading PART I
Loadi.g the Camera Befo re attemptillg to take pictllres
with the Vest Pocket Roll Film StrN- I-Push the slide catch upon either
ECA Carnera, read these Pages and side of the camera as f.ar as possible
away f rom the end Llpon whieh thelearn exactly how to operate its many winding key is placed. Gently loosenparts correctly. Famil iarize yourself the leather covered back and lift off.
with the lens and shuttef, understandrng See Fig. f.
the significanceand explorittg the opefa-
tion of the several working Parts.
Although the camera may be loaded
in direct sunshine, it is safer to perform
this part in subdued light. Sufficient
light will pass through the lens in a
srrrall fraction of a.second to change the
sensitized surface. In the same amount
of time a fay of sunshine may penetrate
'uhe loosened wrapping and destroy the
resr-rltof much patient effort to produce
pictures yotl will afterwards cherish.
Again we say it,-read the directions
carefully and investigate the use of
every part before the film is loaded in Fig. I
the camera. F-inally, see that the shut- II-The empty spool in the film cltam-
ter is closed before loading. ber at the end of the camera opposite
Warning the winding key rnust be placed in the
film chamber by the winding key. Lift Wtrtite the co,??Lerafs loaded, do not
erpose tlce lens to o strong light until the small afm at either side and fernove
the bellozvs fs ertended,. the empty spool.View original page 3Page 4 · Read text
III-AI the end of the film chamber
opposite the winding k.y, lift the small
arm. Now draw out the winding keY
and insert the empty spool which was
removed from the film chamber at the
other end. Turn ttre winding key until
it slips back into position. See Fig. II.
IV-Place the camera face down Llpon
e tahle before you, lift the small arm
Fis. III
V-Break the gumrned sticker and ex-
tend the f ree end of the black paper
through the slot of the empty spool,
making very sure that the film has been
started straight. Failure to take this
precaution may cause the film to roll
Fig II.
at either side of the empty spool cham-
ber ( if they have fallen into their origi-
nal position) and drop into place the
roll of film to be exposed. Be sure that
the num'ber of the film (254) is upon
the right side. Lock it into pos^ition-by
presslng down the side arms. See Fig. Fig. IV
III. 4
DView original page 4Page 5 · Read text
PART IIover the spool flanges and collsequently
to stick inside the camera. I{ow turn Making the E*posure
the winding kel- tvro or three times to
bind the paper. See Fig. IV. l-One of the latest i*provements to
our Vest Pocket Cameras is that they
Vl-Replace the back and Push the are now fitted with a dust resisting
slide catches as f.ar as possible toward metal cover. With the front of Camera
the winding key. Be sure that the back facing you, place the thumb nail under
is attached securel)'-. catch to the left and open the protecting
cover. With the thumb and fore finger
VII-Turn the winding keY until a grasp the front of the camera in the pit
hand appears in the ruby window. A at either end, and pull it forward until
few more turns will bring No. 1 into it locks. See Fig. V. The camera is
the center of the window, at which time now readl- to take pictures. ft is unnec-
the film is in position for making the essar)' to focus the lens, sitrce it has onl1-
first picture. the one position.
white the ,.Y:;:tlrt roaded,,d,o rtot
enpose tlce lens to a strong light oontil
the belloz(,.tfs ertended.
Fig. V
-7
IView original page 5Page 7 · Read text
PART.III At L' the shutter renlains open af ter
the first pressure until a second pres- Removing the Fitm
sure closes it. At B the shutter stays I-After taking the eight e{posures'
all thg-paperopen .tttiil the pres sttre is released' turn the winding-key until
These two factors are used when light i; *tupped arouna ihe exposed filrn.
conditions are so poor that it is neces-
sar)* to an expqlllre longer than Il-Remove the back as bef ore and
"11or" a second. The subj ect must take ottt the exposed ro11.t/iStn of
be-itationa fY, since the slightest motion
will cause ;'blur. It is essential that III-Use the gummed sticker in the
tlre camit^ be plaged upql goTe tigi.d now empty spoo"l to keep the exposed
bot.. A sllpport ls provided f or both ro11 tightly rolled.
i.itical ( see Fig. VI t t ) and ho rizontal IV-Do not twist the film on the sPool
in order to tighten it ; it is likely to
rub the emulsion and consequently to
spoil your pictures.
V-Replace the back upon- the cam era
in readiness for Llse upon the next oc-
casion.
Fig. tX dealer to show how You may sectlre
E*posures at the f ractional spe-e{s more pleastlre f rom the time spent in
can be made when the cam era is held in photographic work by doing yotlr own
the hand. The L/I00, U50 and I/25 de- finishing.
note the approximate fractions of a sec-
ond durittg which light is allowed to
pass through the shutter to the film. At II l/I00, "sn ap" a speeding automobile at
a distance; at I/5,0,.include children at
play or a man runnlng swiftll' at 7/25,
r5 10View original page 7Page 8 · Read text
PART IV II-With one end of the strip in each
Developing the Film hand, pass it continuously through the
These directions for developing are developer. In about one minute the
not to be regarded as absolute, but only blank spaces between the pictures will
as general hints from which the amateur begin to show. By two minutes the im-
should deviate at the first moment he ages will show somewhat clearlY.
obtains more pleasing results. Remem- III-Continue the develoPment for
ber that the value of any rule in pho- five or ten minutes until the contrast be-
tography is gauged by the excellence or tween the light and dark parts of thq
meaiocfity of the result secured by f o1- negative has- become very distinct. - Iflowing that rute. If you find another some of the negatives, as you hoid them
way of getting a better or even the same between your eye and the ruby light, are
result,. usg the new way. at once, Yptt darker than others, they have been ex-
are widening your acquaintance in plc- posed for a longer time, but this differ-
ture making. ence will be easily taken care of in the
I-Empty the contents of the tube printing. It is only necessary to watch
(both ch-emicals) into eight ounces of the degree of contrast.
water and place in a tray at your left. Rinsing
II-In the center place a ttaSr of clear
cool rvater for rinsing. After developing sufficiently, rinse
three or f ottr times in the middle tray
III-At the right set the tray of hypo before yot1.
solution, for making which complete di- If desired, the exposures may be cutrections are given upon the box. apart and fixed separately.
IV-Exclude all rays of white light
from the room and let the ruby light be Fixing
'negativesat least one and one-half feet from the face down iiI I-Pass thedeveloping tray. through the solution two or three times
bef ore completely submerging them in Developing !I the hypo solution.
I-Unroll the film and detach the en- II-If the negatives were not cuttire strip f rom the protecting black apart, fold the strip several times with-paper. out allowing it to crack at the end.
l6 17View original page 8Page 9 · Read text
II
Press these down so that the solutron . ; I Irregular Light Spots
will reach all parts of the fiim. Two or j Uneven developmentdue to failure to
three minutes after the last trace of I keep all parts of the negative evenly JI
milkiness has disappeared, it is safe to moistenedduring development. , n l
admit white light to the room. i Over exposure.
. III-Remove the negatives to running -
water and allow them to remain there Mitkv Spots on Negatives
f or an hour. In case running water is Failure to keep negativesentirely cov-
not available, change the water twice the ered by fixing bath or insufficient time
first ten minutes, moving the fi1ms occa- for fixing.
sionally, and then allow them to soak
Dont'sfor an hour. If desired, the water may
be changed f our or five times during a Don't start until the chemicals are
half hour of washing. It is essential thoroughly dissolved.
that the negatives be thoroughly washed. Don't use a tray for developing if it IV-suspend the wet negatives in such has previously been used for pyro de-a way that neither side will come in con- veloping, hypo solution or final washing.tact with anything while drying. The
Defender Film Clip on page 53 of the Don't use chemicals after their
catalogue will be found to be very con- strength is gone. .
venient for this purpose as well as for Don't allow one ray of white light to
handling the films while developing. enter the room.
Don't hold the strip too close to the Defects in Negatives
ruby lamp, it may cause f og.
Veiled Whites or Fog Don't fix the negativestoo long, it de- trilm handled too close to ruby light. stroys much of their sharpness for
Exposed to rays of white light. printing.
F'orcing under exposed negatives in Don't let a trace of hypo reach thedevelopment. developer, a drop may spoil the whole
Too warm a developingsolution. solution. Wipe yor'lr hands upon a clean
Muddv Effects towel each time after taking them from
Under development of over exposed the hypo solution
negatives. D'on't blame the materials, read the
' Exhausted developer. directions over again or ask your dealer.
r8 l9
tView original page 9Page 10 · Read text
higl't,lights) are z)gry dense and the con-
PART V trast betw,een the lisht an,d, dark for-
Making the Prints tions very rna,rked, dilwte the developing IIi
I-ilIix the contents of the tube (both I solution to one-half its original strength and use Soft Argo. Tlce time of erfo-chemicals) thoroughly with four ounces sure an,d,develop'vnentzuill be soncewhotof water at about 70" Fahr. and place lengthened. I t fs very irnportant tlt,atin the traSr at left. paper with the correct d,egree of con-'
II-In the center have a tray of clear trast be used zuith each class of nega-
cool water for rinsing the prints after tizte. A soft or weak palter f or instan,ce
developit g. zuith a contrasty negatizte will prod,ttce
Ill-Dissolve thoroughly the hypo ac- the same result as a con,trasty paper zuitk
cording to the directions upon the box a w,eale vtegati,zte. Tke ]{ ornr'al Argo
and set the. tray to the right. nceets the average reqwirentents of an
arnatewr'ilrore close!\t than an\ otlter de- IV-Darken the room to semi-day-
gree of contrast.)light. It is unnecessary to have the
room completely dark since Argo paper III Clamp the back of the printing
can be handled safely ten feet from an f rame into place and expose to the light
ordinary gas j et. for several seconds
(With a,n ordinary grrs light and a
Developing negatizte of average d,en,sityerpose Argo
I-Place the smooth side of the nega- Paper about eight seco:rds-counting on,e
tive against the glass of the printing Itwndred, t-cuohwndred, etc.)
frame, allowing the rough or picture side IV After expostlre to the bright light,
of the film to f ace up. hide the exposed paper until the room
II-Take one sheet of the developing has been darkened enough to permit its
paper from its light proof wrapping and being handled safely again. Remove the
paper f rom the f rame and immerse itlay it smooth-side down upon the nega-
tive. This allows the rough surf ace of in the developer with a quick sidewise
the negative to come into contact with motion so that the solution reaches all
parts of the paper at approximately thethe smooth surface of the paper.
same time. The room may now be (F or a n,egatiae of nortnal contrast lighted brightly again to enable the op-use I{ orncal Argo to obtain best reswlts. erator to follow the developing moreWhen the negatizte fs zaeah or thin, use closely.
Ifard, Argo. If tlt,e dark pla,ces (tlce (-
20View original page 10Page 11 · Read text
\ ' V-Leave the paper in the developer II-Wash the prints in ruuuing water.
until the picture has come up to the for an hour, taking care again that they ,right shades of black and white. The clo not become matted. If running water
picture will begin to appear in about six is not available, c'hange the water twice
seconos. the first ten minutes and then allow
them to soak for an hour, or, if Pre-'
(If the shad,ows are ligltt or foggy ferred, change the water four or hve
and apfear skizaly, the paper ka.s not times at regular intervals durirrg the
been erposed long enough. If on th,e hour. Be sure that the prints are clean.
other kand tke skad,ozusare nery inten,se III-Place the orints on either'I'he
and come up qwichly, the erposure has stretched cheese clotli or a blotter.
been too long. Before m,ahing any er- time necessary for dryirrg may be short-
posure, cut a slt,eet of paper into strips ened by laying them upon a piece of
an,d, make trial erposures. You will clean gl:tss and pressing the surpitts
soon find, what exposwre giztes the best water out.
results. I{ot only will this so,ue a con- Defects in Prints
siderable ancownt of palrer, but 'it u,ill Foggy Whites
enable you to obtain pleasing reswlts Paper handled in too strong a light.more quicl:ly.) Forcing development of under exposed
prints. Rinsing
Paper too old.
I-At this point take the print from Muddv Effectsthe developer quickly and rinse it in the Under development of over exposedtray of water directly before you. prints.
Exhausted developer. Fixing
Irresular Light Spots
I-Submerge the print in the hypo so- IJneven development due to failure to
Iution and allow it to remain for a few keep print fully su)merged during de-
minutes after the last trace of milkiness velopment or to immerse print evenly.has disappeared. This process will last Over exposure to light.from ten to fifteen minutes. See that
the prints do not become matted, since Stains
in that case the hypo soiution will not F'orced development.
fix them evenly. Chemicallydirty dishes or hands.
23View original page 11Page 12 · Read text
/ \
/ I
Failure to fix a sufficient length of PRICE LIST
time. Vest Pocket Senecawith Meniseus
Round White Spots in Clusters Achromatic Lens . r . ... . . . . . . o..$ 7.00
Air bells upon the print af ter being Vest Pocket Seneca with RaPid
immersed in developer. Rub the print RectilinearLens .. . . ... ......'. 8.50
lightly with the finger to scatter them. Vest Pocket Seneca with Seneca
AnastigmatLens, t. 7.5.....o. 12.50 Oval Dark Spots in Clusters
Air bells tlpon the print after being Vest Pocket Seneca with Seneca
immersed in the fixing bath face down- AnastigmatLens, f. 6.3 .....o. 22.50
ward. Immerse them face uPward and No. 254 Vulcan Roll Film, 8 ex'
move about to displacethe bubbles. p O S U f e S . . . . . . . . . . . " o t " " ' ? n I Leather Case ................... .75 Dont's 'Hand Bag ............"""" ' '25
Don't start until the chemicals are Vest' Pocket Tank , DeveloPing thoroughly dissolved. Powd.is, p.r package % doz-., .15 Don't use a tray for develoPingif it I\{.- Q. Developing P'owders, Per has been used for pyro developer,hypo boi (six tubis)-...... o... o... . 25 solution or final washing.
D'on't use chemicals after their Seneca Acid Fixing Powder, P€f 1 lb. package................. ,25 strength is gone. .15 Don't have the lights too bright while Do. per % lb. package..o.......
the print is in the develoPer,it may Do. per % lb. package .10
cause fog. Argo Paper, per dozen sheets,
Don't fix the prints too long, it de- L % x 2 ' Z . . . . o . . . . . . r . t . . . . . . o , 1 0
stroys much of their brilliancY. Disco Paper, per dozen sheets, Don't let a trace of hypo reach the L% x iY" ..r..............". '10 developer,one.droy may spoil the whole
solution. Have a clean towel handSt DefenderFilm Clips,each ......o .10
after taking the hands f ront the fixing Roval Black Moire Cloth Album,
bath. i%"2 in. leaves,50 pages Bound .40
Don't blame the materials if your first t Roval Seal Leather Album,
results are not as good as you expected, II 5%"7 in. leaves, 50 pages Bound .80 read the directions over again or ask Roval Plain Black Cloth Album, your dealer. l i%*7 in. lea{es, 50 pages Inter-
24 c h i n g e a b l g . . . o . . o . . . . . . r . . . . . . . 6 5View original page 12Page 14 · Read text
r-
is as rigid as "two times two make If the lens is not an anastigmat,it is
four." Speed is gained only at a loss marked B, 16,'wus32, 64. This Uniform SYs-
in depth of focus. tem (U. S.) designedto show more
clearly the relation between th" speeds Every lens has a focal length, i.- e.- of the lens at each of the various stops, f the disiance at which it must be placed which ratio is shown by the numerical from the film to produce sharp pictures. value. F'or instance, U. S./B is only As lenses of the same speed have shorter twice as fast as U. 3./16. With the and shorter focal lengths, their depths Vest Pocket SENECA all objects six of focus become correspondingly greater feet or more distant are sharply in focus. and greater. This is why it is neces- Anastigmat Lenses are marked ac- sary to gauge- the distances upon larg-er cording to the f . System, other lenses cameras but is not necessary upon the by tht U. S. System. The table shows Vest Pocket SENECA Camera. If a tie relation between the most commonly negative suitable for enlarging pllrposes used stops of bot'h sYstems: is desired,. the anastigmat lenses at the
f.l1 stop will include satisfactorily all U. S. 816s264
objects six 'or more feet f rom the cam- f. 811162232 era. For the same purpose the lens at
either the f .7.5 or t'he f .B stops will take Keep this relation clearly in -mind ln
all ob j ects ten or more feet distant and order that the indicators may be intel-
at the I.6.3 stop, obj ects twelve or more ligently set for each exposure.
feet distant. As a basis to work from, set the stoP 'f.or at 16 pictures of objects in direct The amateur must bear in mind that sunlight- if taken in the middle of the the negatives at these openings are sharp day. Use the U. S. B or f.1l stoP for enough to stand enlargement to many objects in direct sunlight earlier in the
times their original size. It is also true morning or later in the afternoon. When
that a negative will yield a contact print the liglit seems bright, I / 50 is satisfac-
sufficiently sharp to make a good picture tory, 6ut otherwise Llse I/25. The anas-
and still not be capable of enlargement. tigmat lens may be used with the largest
This class of pictures which are com- op'ening f or snapshot work under t1n-
monly called "suitable for general pur- fivoraEle conditions, but the lens which
poses" are possible for all objects six is not an anastigmat cannot get the p!.-
or more f eet distant with the anastig- tures under such corrditions except by
mat lens at either the f..7.5or f .6.3 stops. time exposure. Do not adhere too
L2 13View original page 14Related documents and language editions
From the M. Butkus archive. Original publisher and archive notices are retained.
Check the model and edition against your equipment.
PDF verified 2026-10-10.