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Kodak Velox Book User manual
User manual for Kodak Velox Book. 27 pages in English. Read the original PDF, download or print a copy without registration.
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- Brand
- Kodak
- Model / document
- Kodak Velox Book
- Document type
- User manual
- Language
- English
- Pages
- 27
- File size
- 2.5 MB
- Category
- Film cameras
- Document date
- Not specified in catalog
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nlade in its manufacture and to-day Velox is The Right and Wrong Paper
the perfected product of years of experimetrt. to Use
The different surfaces, grades and degrees
of contrast in rvhich it is manufactured enable I N average negative or one that will pro-
the user to produce good prints from almost .|I duce good results with printing-out paper
any negative suiting his tastes as well as the should be printed on Regular Velox. The Con-
peculiar requirements of the negatives. trast Velox is adapted to negatives which are
photographic papers, or when tII too soft for other
hard, contrasty prints are required. Special
Grades and Degrees of Contrast Velox is for use with especially brilliant and
contrasty negatives.
\ /?EI-OX is made in five different grades
V and divided lrroadly into three degrees of To those familiar with Velox paper it is an
contrast, called "Special," "Regular" and "Con- easy matter to select the grade which is best
trast." As these trade terms have reference to suited for the results desired. The novice,
contrast and not to surface, we could as well however, is guided usually by the advice of
say "soft," "medium" and "hard." There will others and often is misled into using a wrong
be found a variety of surfaces. Cl-roose the grade of Velox, thereby failing to secure the
surface which best suits you and which will results expected and is inclined to believe that
harmonize w-ith the subject of your picture. the paper is at fault.
Select your negative, remembering that the The following illustrations will act as a
"Contrast" paper develops quickly, and is guide to the best paper, Contrast or Special
adapted to negatives lacking contrast, and Velox, to be used with negatives varying as
known as "weak" negatives. "Special" papers to their contrasts. The illustrations do not
require longer development (as compared with show a normal or "average" negative, the
the "Contrast" and "Regular") and are for use Regular Velox should be used for such
with "contrasty" negatives. The "Regular" negatives.
paper develops quickly, and is for use with
normal or "average" negatiyes. NOTE-When selecting the proper Daper, remem- ber that Contrast Velox is beit-adapted for use with
Royal Velox is furnished in both "Regular" the thinnest and flattest negatives.-
and "Special" but in one weight only and
differs frorn the other Velox papers in that
it is coated on a stock having a cream tint,
just a soft mellow tone that prevents harsh-
ness in the high lights. The stock is some-
what heavier than the usual Vc lox stock, about
half rvay between the single and the double
weight.
Royal Velox prints are delightful when
developed in the ordinary way, but to get
their full value should be re-developed. (See
page 31.)
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t.
Frc. I. Ftc. III.
This represents a r,veak, thin or flat nega- This shows the result of printing from a
tive, one with little contrast between the high- weak, thin or flat negative (Fig. I) on Special
lights and sltadorvs, gld is therefore adapted Velox. The wrong paper to use.
to use with Contrast Velox.
Frc. IV.
Frc. II. This represents a print from negative shown
This represents a negative of strong con- in Fig.. II . on Contrast \zelox showing veryl
trasts. This kind of negative should be printed little detail in the highlights. The wrong
on Special Velox. paper for a contrasty negative.
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Dense-Applied to negatives which have bcen Velox Glossary over-developed.
Desiccated-Anhydrous. Dry powder, not order N may that the beginner understand f crystals. Applied to chemical salts from I informed, and be fully following the glos- ,La- fS-t d. which all water has been removed.sary has been compiled, including all technical t
terms indispensable in describing the charac- Developing-Out Paper, or D. O. P.-Sensi-
photograp-hicteristics and manipulation of Velox. I tized- paper- uporl which the
Abrasion Marks-Black lines or markings image is invisible until development has
produced on the surface of photographic taken place. Applied to "gas-light" papers
paper by rubbing or pressure. or those printed by artificial light. Generalii'
applied tb such of these papers as requireActinic-The "actinic rays" of light are those longer exposure than Bromide papers. whicl-r produce chemical changes or photo-
graphic action. Diffused Light-T ight which does not strike
directly, bult is arrested and diffused by someActinometer-A name erroneously applied to rnedium such as ground glass. a form of Hydrometer which is intended to
show the strength of a silver bath in grains Dodge--To dodge is to prevent light from
of Silver Nitrate, per ounce of solution. strlking a portibn of a negative when print-
This instrument is often used arbitrarilv to ing bt shading that portion with some
measure the strength of Sodium Sulpirite, opaque body.
Sodium Carbonate, also Hypo solutions. Emulsion-A term applied to the sensitized
Air Bells-Bubbles on sensitized surface of coating on plates, films or paper, which is
prints, produced by immersing the paper face acted upon by the light rays.
down in the developer or by using too small
amount of solution llI Embossingprints havingBoard-Acountersunkdevicemargins.for producing
Bath-A term applied to a toning, developing t
or other solution. Exposure-The act of submitting sensitized
surfaces to the action of light.Blisters
(See article on page 32.) Fixing, Fixing-Out-To remove the excess of
Burnisher-A device for securing a high gloss sens-iiive salts, which has not been acted
or polish on certain photographic papers. upon hy the light, so that the image will be rendered permanent.
Concentrated-As applied to Nepera liquid
preparations means that the chemicals which Flat-Weak or thin, lacking contrast. (Ap- plied to prints or negatives.) comprise them have been dissolved in the
least possible quantity of water. (See pages Forcing-Prololging development of under-
18 to 20.) exposed prints-, films or plates.
Contrasty-A term applied to prints meaninq Ferro Tin, Ferrotype Plate-Thin plates of
hard, "chalky," extremely black shadows and Japanned ifol especially prepared for
white highlights; lacking in detail as applied squeegeding prints, which produces a high
to negatives. gloss'
g
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Freaks-Peculiar white niarkings caused by Negative-The picture obta;ned in the camcra
incorrect-developing solutions.- (See articl-e by exposing a specially prepared glass plate on page 36.) or a f,lm, rvhich when developed produces an 'producedFog-Dim, grayish color by white image whose lights and shadows are reversed.
light. striking the paper before or- during A
development. Hazy, dim appearancein lighti Y Non-Actinic (Light)-Is known photograpiri-
and shadows,due to an error in the prepara- cally as bcing a light wl-rich has no effect on
tion of developer, or may be caused-bv im- sensitized surfaces.
pure condition of chernicals used. (See Oxidation-As applied to developer-a deteri-
page 34.) oration due to the presence of oxygen. An
Half-Tones-All gradations between high- oxidized developer is dark in color atrd usu-
lights and deepestshadows. ally causes discoloration of the print.
Graduate-_A receptaclefor measuring liquids. Over-Exnosure-Too long exposure to print-
Nepera Solution, Velox Liquid Diveloper, ing light.
N. A., and Velox Liquid Hardener are con-
tained in graduated bottles. Over-Development-Too long a time in the
developing solutit,n.
Hard-Contrasty,. lacking detail. Applied to
negatlvesor prlnts. P. O. P. or Printing-Out Paper-Sensitized
paper upon which the image becomes visibleHardener
(See Velox Liquid lfardener, page 22.) 'and. on printingfixing. and is made permanent by toning
Hlgt Lights-Brightest or whitest parts of an Printing Frarne-A specially constructed
image. The denser portions of a negative frorne for making prints. Holds the nega-
or the lightest parts of a print. tive and sensitive papers in contact while
Hydrometer-An instrument intended to test printing.
th-e density-of liquids. In photography it is Positive-A term used in contradistinction to
often used instead of weights or measures negative.
in -the preparation of solutions. ( See
Actinometer, page 8.) Precipitate-A substance which, having been
Hypo-The abbreviation of the term Sodium dissolved, is again separated from its solven'.
Hyposulphite, or more correctly, Sodium and settles to the bottom of the vessel con-
Thiosulphate, used for fixing plates, film; taining it.
and paper, may be obtained.for use in either Shadows-The thinner portions of a negativc
granulated or crystal form. or the darker portions of a print.
Latitude-Refers to the limits within which Squeegeeing-Placing wet prints face down
exposure or development. can safely be on ferrotype plates to obtain high polish.
carried on.
Squeegee-Usually a strip of soft rubber sei
Milky-Appearance of some incorrect fixing in a handle, or a rubber roller, anrl useC to
baths. Often the result of using impure place a print in contact with the ferrotype
chemicals. plate.
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Notes on Development cated, double the quantities mentioned should
be used.
I /ELOX requires a special developer and
V should not be used with one made for If tube developers are desired we recom-
plate and film development only. Nepera Solu. mend the Kodak Non-Abrasion M. Q. Tubes
tion, however, is ,a universal developer-see or the Eastman M. Q. Tubes which correspond
page 19. Various developing agents are used respectively to Velox Liq. Dev. N. A.- and
in the production of Velox prints and arc Nepera Solution.
marketed under different trade names such as ?t N. A. Velox Liquid DeveloperAcrol, Kodelon (Paramidophenol-Hydrochlor-
ide), Elon, Hydrochinon, 'etc. Acrol affords rnHIS is an excellent ready-to-use concen-
a very blue-black tone, but owing to rapid . |. trated developer for Velox papers. Unlike
oxidation, a fresh solution should be mixed any other developer, it has certain qualities
each time prints are to be made. Kodelon which make it unique in photographic work.
affords very satisfactory results. It has been N. A. (non-abrasion) means that all abrasion
proverl, however, that Elon and Hydrochinon or friction marks, to which all glossy develop-
in combination yield the very best results on tng-out papers are peculiarly susceptible, will
Velox when used in the proportion given in be prevented by this solution. Anot6er feature
our formula. Owing to the dififrculty many is .the guide it gives to thorough fixing-the
have in secrlrrng absolutely pure chemicals and prlnt is not absolutely fixed until the canary
the trouble and subsequent loss of material' yellow color entirely disappears by fixing in a
to those attempting to compound their own :orrectly prepared Acid Hypo Bath.
liquid recommend use of our thedevelopers, we 'The following formula should be used for N. A. Velox and Neperadevelopers, Solution
Liquid Developer, for Velox papers. To those Contrast, Regular or Special Velox:
rvho prefer to prepare their own solution we _ N .A . V e l o x L i q u i d D e v e l o p e r . . . . . . . . l o z .
advise the following forrnula: W a t e r . . . . . . . . . . . . 4 o z s .
M-Q Developer It is important that the temperature of the
(Elon-Hydrc chinon) developing solution should be 70 degrees Fahr.
In summer, if found necessary to cool the de- (Dissolvechemicalsin the order,ffin place do not ice in the solution, it as SJl._ veloper,
Water .. . i. . 10 ounces : 30'0 c. c. will dilrrte it. Place the tray containing devel-
E l o n . . . . . . : . 7 g r a i n s = f g r a m m e oper_into one of larger size, packing ice around
: 2Hydrochinon 30 grains grammes it. NI. A. DEVELOPER- SHOULD NOT grains :E. I(. Co. Sulphite Soda.. 110 7 grammesE. K, Co. Car,bonate Soda 150 grains - 10 [rammes BE USED FOR DEVELOPING PLATES.10 Der cent. Solutiorr FILMS OR BROMIDE PAPERS, NOR FOR
Potassium Bro,mide. . . . 40 drops : 40 drops VELOX PAPER WHEN IT IS TO BE RE-
This solution will keep indefinitely if placed DEVELOPIiD TO THE SEPIA TONE.
in bottles filled to the neck and tightly corked. Nepera SolutionIt should be used, diluted with equal parts of
water, f or the "Contr.ast," "Regular" and TJ\IIIS is known as the "universal" developer
"Special" papers. If sulphite and carbonate of . |. becar,rseit may be used not only for Velox,
soda in crystal form are substituted for desic- hut Azo, Bromide paper, films or plates. Lik6
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I
Enameled Surface Faper The simplest and most satisfactory way to
mount prints is by using KoC-rk Dry Mount-
1-f LOSSY Velox (not Matte or Semi-Matte) r'i ing Tissue, as by this proces; the prints are
\f prints can be burnished or squeegeed. mounted in absolute coutact and will not curl
Take prints from the wash-water and place I cven on the thinnest mounts-especially
face down on a ferrotype tin, squeegee iuto advantageous in multiple mounting.
absolute contact and allow to become boue I{ Two prints may be mounted back to back,dry, when they rvill peel off with the desire<i I :.nd being free from curl can then be usedIrrster. If tl.'e tin has been in use for some
time, portions of prints may stick; to prevent as an album leaf.
this, prepare the tins as follows : The Kodak Dry Mounting Tissue is dry and
not sticky to handle, mounting is accomplished
Dissolve ten grainq of beeswax in one ounce quickly and no tirne is lost waiting for prints
of benziue; allow this to stand for a few to dry after mounting. :,iii ,,hours, in which time a precipitate will be Any size print may be mounted with theformed. The clear solution should be used tissrre, and as the tissue is water-proof there to the surface polishing applying tins, thefor print staiued becoming is no possibility the of (can. plate cloth a soft ferrotype with theof in mount the stock. from any chemicalton flannel). When the surface of the tin
has been thoroughly covered with this prepara- To use the tisstte, lay a print on its face
tion the tin should be polished with a piece of and tack to its back a piece of tissue of the
dry canton flannel to remove as much of the same size or a little larger- than the print, by
beeswax as possible. As beeswax varies in its applying the point of. a lt6t flatiron to small
composition to a certain extent, the solution spots at opposite ends.
may vary somewhat in consistency' so that an Turn the print face up and trim print and
addition of benzine may be necessary to permit tissue to desired size. Place in proper posi-
polishing the tins easily. tion on mount, cover the print with a piece
of smooth paper and pless the whole surface scalding with tins occasionally the Clean with a hot flatiron; Press, d'on't rub. particles of remove any to in orderwater,
gelatine l,vhich may remain on them from The iron should be just hot enough to siss
former prints. rvhen touched with a wet finger. If the iron
is too hot the tissue will stick to the mouut
Mounting and not to the print ; if too cold, the tissue
will stick to the print and not to the mount.
I IELOX prints should be trimmed to size Remedy-lower or raise the temperature of
V desired- before mounting. If using the the iron and apply again. I{odak Dry Mounting Tissue for mounting,
do not trim prints until after the tissue is For morrnting rvith paste the follorving plan
fastened to the back cjf print. Prints should is best to employ:
be dry and perfectly flat for trimming, and a After prints are trimmed, immerse them in a
trimrning board should be used instead of a tray of cleau water, allowing them to soak
knife and ruler, for with the board absolutely long enough to become thoroughly limp. Re-
true edges may be obtained. move to a good sized piece of clean glass,
24 25
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placing them in a pile face down. Cover with countersunk margin about half an inch around
a piece of clean blotting paper, and with a the edges of the print will give a fine etching or
roller squeegee press all the superfluous water engraving effect. Enclosed in a folder mount
from the pile. Then with a good bristle paste made of cover paper of desirable tone, you
brush apply a thin, even coating of starch paste. have as artistic a result as can be produced.
Raise the print by taking hold of the two
opposite corners and turning it over, place rn Finishing Velox Post Cards
position on the mount. Lay a clean, dry blotter rIrHE process of making prints on Velox over the print and with the roller press lu:o
contact. Any lint or luzz from the blotter, or I Post Cards is identically the same as that
any paste on the surface of the print should be for making Velox Prints. The cards are
immediately removed .with a scift sponge or sensitized on one side only and the reverse
dampened cloth. Ary imperfections in the side is printed to conform with the U. S. Postal
finished print may be corrected by spotting, Regulations. A printing frame and a glass a
using a fine sable brush and spotting cblor of size larger than the negative should be used.
India ink. Care should be exercised to select Place a mask betweeu the negative and the
mounts which harmonize with the tone of the glass in the printing frame, then place the
print. If Sepia prints are to be mounted, any Post Card on the negative and the result will
shade of brown or some of the deeper reds be that u'hen exposed, developed and fixed
may be used, but these same mounts would not the same as an ordinary sheet of Velox paper,
be suitable foi black and white tones. For the you will have your picture on the card
black and white prints any shade of gray, surrounded with a white edge of the part
carbon black, buff or cream color mai be which was protected by the opaque mask.
successfully used. Your negative should be selected the same as
when printing with \relox paper and Contrast,
- Double weight papers may be mounted solid, Regular and Special Post Cards should bebut are best used for folder effects. A verv used. Where contrast is desired, the Contrastartistic way of making prints with the Doublb Velvet and Regular Velvet, Regular Glossy, or
Weight is to use a sheet of paper considerably i'h Regular Royal Post Cards will give the bestlarger than the negative to be printed from. results and should always be used with thinThis will necessitate the use of a- lareer f rame 'negatives; the Special Velvet, Special Portrait,
$%*8rl or 8x 10). Have a piece of clear Special Glossy and Special Royal Post Cardsglass the full size of the frame and fasten your should be used for stronger negatives andnegative to the center of this glass with strips when soft effects are desired.gf-gum paper, cut a mask of opaque paper the
full size of your glass and from the center cut Double Printing
an opening at least one-quarter of an inch .
smaller than the size of the neeative. Place f,TtrFECTIVtr and artistic work may be done
the mask in the printing framJ between the I', on Velox Post Cards by double printing.
p.aper and the negative, then print and develop By this process gray borders and ground may
the exposed paper in the usual way. This will be produced. The work requires careful and
slve a p-rint with a very wide white margin and exact cutting of the necessary opaque masks
when thoroughly -dried and straightenled,-imprint by and accurate registry of the cards when print-
using an embossing board, an or ing. Provide a number of pieces of clear
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glass, cut to size 5 x7 (old negatives from No. I
which the emulsion has been thoroughly
cleaned by soaking in a solution of hot water
and salsoda are suitable), also a few sheets of
opaque paper the same size (5x7). From
one of these sheets make a mask as shown in
Fig. 1. (Page 29.)
Measure from edges A .and B a space five-
eighths of an inch wide, then. cut an opening
2 x 3 inches through which your negative and
card are to be exposed. Fasten the negative
with strips of adhesive paper to one of the
pieces of clear glass, placing that portion to
be printed directly in under the opening in the
mask. Adjust glass, negative aud mask in
printing frame, lay on the Velox Post Card,
sensitized side down, so that one end covers
the opening in the mask. Be careful to have
the edges A and B of glass, m4sk and card fit
flrrsh against the corresponding sides of the . Shaded portions represent opaque paper.
printing frame. Expose to printing light, gir'- White portion shows Part cut out.
ing correct time required for a perfect print, No. 2rernove the entire outfit from the printing
frame and insert glass and mask No. 2, which B
you will have previously prepared, as shown
in Fig. 2.
From another piece of opaque paper 5 x 7 fcut an opening 3 x 5 inches and measure exact
so as to leave margins of one-quarter inch on
the sides A and B. Gum this mask securely to
another glass, then cut a piece of opaque paper
2r/a x 3fu inches and gum this in a clear space
at a distance of exactlv one-half an inch from
edges A and B. Pljce this entire outfit in
printing frame, lay on Velox Post Card, previ-
ously exposed under No. 1 mask, fit edges flush
into the corner of the frame and expose. This
second exposure should be just enough to pro-
duce the desired tint, governing time by grade
of Velox used. If the exposure has been too
great the border will be dark, if under-exposed Shaded rrortions represent opaque paper'
the border tint will be light. A little practice White portion shows Part cut out.
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may be necessaryin order to secure the tint , Sepia Tones on Velox
desired. rfrHERE are occasions when it is desirable
Now, if you have made all measurements , I to modify the tone of Velox prints, in t:Jfr -orderaccurately and exposure and development have to secure some effect more in keeping
been correct, you will have on a finished post with the subject than the original color pro-
card your picture 2x3 in size surrounded by dlced.by development only. The Sepia Tone is 'a narrow white margin, one-eighth of an inch permanent and may be secured in various ways'wide and a gray border one-quarter of an inch I but we will describe only two of these: the first 1nwide on top and one side, and one-half -inch known as the hypo-alum process, and the
wide on bottom and one and one-half on other second, Velox Re-development. The hypo-
side. The tint of this border should be a slaty alum process is a slow and somewhat uncer-gray and should harmonize with the black tain way of obtaining good results and consists ,idf
tone of your print. of a solution of hypo and powdered alum in
boiling water, into which, when cooled, the. Other forms, such as ovals and circles, may prints-are immersed, and left until the desired'be made and the process for their making is ione has been reached, The process requiresthe same as already described. from one to twelve hours and is uncertain in
exact results. The Velox Re-development
process rvill give the best results in a much
shorter time, yielding equally pleasing and tf,l nermanent tones. Prints on any grade or sur-
iace of Velox afford most pleasing tones when ;
re-developed, but re-development is perhaps
specially advantageous f or prints on Royal 'Velox, as the process brings out and accentu-
* ates the full value of the soft, creamy stock upon which Royal Velox is coated ; the. finished -piints possessing an almost indescribable soft-
ness aud delicacy.
Velox prints of any grade or surface, which
have beeh evenly arid thoroughly fixed and
rvashed will give desirable results with the Re-
developer, but some subj ects, such as marines
and snbw scenes, are best rendered in the black
and white. Landscapes, auttlmn scenes, and
nortraits are given greater artistic values by the
'lvarmth of tone which the Re-developer affords.
A package of Re-developer consists of- 14
powd^ers and a bottle of solution. Each powder
is .o*posed of chemicals which require only
the addition of a certain quantity of water to
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Causes of Non-Success Greeni'sh or brownish tones, sometimes mot-
, tled
pY consulting the following causes of failure Developer too old or too weak.
I-r.4ou will probably b-e able to locate any Excess of Potassium Bromide. trouble you may have had: t Over-exposure.
Pap-er found to be defective through fault in
manufacture will be exchanged free-of charge, I Greenish- yellow stains noticed when N. A.
if returned before the expiration date' which Velox Liquid Developer has been used
is stamped upon each paciage. Under-exposureand forcing.
If you_are rlnsuccessful and believe that you Canary yellow stains produced when N. A. .
have a defective paper, return the unexposeJ V. L. D. has been used
sheets in original package, together with a'print Fixes out entirely in correctly prepared acid
showlng nature of the defect and we will make Hypo bath. (See page 2l for formula.) a -test, notifying you promptly as to the cause The entire disappearanceof this color in- oI your non-success. sures correct fixing.
Prints are too black Brown or red stains
Over-exposure. Old or oxidized developer. (Never use de- Over-development. veloper after it is much discolored or Insufficient Potassium Bromide. muddv.) Negative too weak or thin. Develbper too warm.
Perhaps the wrong degree of contrast of Imperfect fixing.
p4per was used; try Contrast or Regular Fixing bath lacks sufficient acid and prints Velvet Velox. were not kept moviug to allow even fixing.
Prints are too light, lack detail (See page 21.)
Under-exposure, "-aII Purple discoloration (Not Frequent) Negative too dense for Regular paper.'portrait
Iry Special Velvet, or Special Velox Paper has been used as a printing-out
Velox. ' ' i paper. l Incomplete fixing.Grayish whites throughout entire print
Chemical or lieht foe. Round white spots
Insufficient Poiassium- Bromide in developer. Air-bells on the surface of paper. Old paper. To avoid, develop prints face up, brushing ,f
off any air-bells that may form, and useGrayish mottled or granulated appearance of edges of entire print sufficient developer to thoroughly cover the prints.
Under-exposure, forced development.
Old paper. Round or irregular dark spots
laper kept in damp place. Caused by air-bells forming on the surface
Moisture. of print when several are allowed to become rl
Chemical fumes, Ammonia, failing etc. matted in fixing bath, and together to itiq' Illrrminating gas. or coal fixing. move prints about during occasionaliy
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White deposits all over surface of print
Milky Hypo bath.
If print_is. thoroughly washed and deposit is
removed before drying it does no^ harm.
Correct fixing bath bi adding more No. g
Acetic Acid.
Picture good, but surface covered with black
marks
Abrasion marks. ( See page 19.)
Blisters
Prints have been creased or broken while
rvashing.
Do not allow water f rom the tap to f all
directly on the prints. Develofed in, M. h,alf as str-ong as Q. Ioo strong acetic acid used in hardener. that advised in, instru,ctiou, sh,eet. great T9o difference between temperature of
solution and wash-water.
F-ixing bath lacks sufficient hardener.
l{czter n,se a \lyif Hy|o f!"jyrg bath j atways acidif y with [,/elor Liquid, Hird,ener.
Blisters occurring during re-development
( See pase 32.)
Freaks
Picture develops irregularly and appears to
be covered .with - greasy streaks ilg;;
marks and gives the impression that""athere ire
spots on _the paper which have never been
coated. of all complaints received regarai"g
Velox paper, none are caused by anf ao;ai_
tron more annoying than this "freak"-trouble.
It is annoying to the photographer becaus"
he feels sure the faulC is in thb paper,^tnai and Dcztclofcd in M. Q. strcnqtll, as
annoying to us because we know ttt. adztised, in in,strwcti on slt,ce t.
fault is due to unfavorable atmosptreiic-.o"-
ditions under which the paper is handled or
li.pt. We publish herewith a half-tone ;i tlndoubtedly the pap-er absorbs moisture un-
this curious effect. It is in warm weather evenly and. in certain-. spots becomes repellent
when the humidity is great that theie to the action o f an incorrect developer. In
"freaks" most frequently oiccur. making up a developing solution it is arisolutely
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essential that pure chemicals be used, and as Sea air will affect Velox, causing yellorv
Velox requires a bath that contains about one- whites, so packages should not be left open
third more Carbonate of Soda than Sulphite and prints should be developed immediately
of Soda, it is easy to see that any mistake after exposure.
made in the proportion of either chemical '
rvould be apt to cause trouble. The remedy Permanency
for "freaks" is to throw out vour develoner t'l-tHE permanency of Velox prints has neverand mix a fresh solution. When conditions |. been questioned. Permanency of anyare extremely unfavorable it may be important Velox print depends upon the thoroughness of
to use a more concentrated solution or less manipulation. It is beyond question that withwater and a slightly increased amount of car- correct developer freshly prepared and withbonate of soda than specified in the formula thorough fixing and washing, Velox prints willregularly recommended. be absolutely permanent. Many dealers have
It sometimes happens that one package of sample prints that were sent them years ago
Velox wiil freak in a certain develooer. while and have exposed them continually to every
another will not. This is not proof that the conceivable atmospheric condition. This is an.
paper is defective, but simply shows that one unanswerable argument in f avor of Velox
package has been kept under different condi- permanency.
tions from the other at some time since it EASTMAN KODAK CO.,left our factory, and because of this is more
susceptible to the action of an incorrect de- Rocnnsrnn.N. Y.
veloper. Both packages, however, will give
good results with correct development.
The temperature of the developer is also
important. A solution that is too cold will
produce failures more readily than when it is
used at the normal degree.
Yellowish whites when other than
N. A. has been used
Stain all over prints is result of under-
exposing and forcing.
Prints not kept moving for the first three or
four seconds after immersion in the acid hypo
fixing bath.
Too weak developer.
Insufficient washing and fixing.
Iron in wash-water-may come from rust in
water pipes.
38 39
,,,'tiView original page 22Page 26 · Read text
www.orphancameras.com
Co/or oTDnprints, ltour Prints do not car/
en/argernents and when rnoanted with
lantern slides witl a
KODAK
Velox DRY MOUNTING
Transparent TISSUE
Water Color
Stamp Outfit .M
No Experience Necessary
'uft;i l.:t,,t - , i-r.t:ri-ia Fi " .
The outfit consists of an Artist's Mixing
Palette, three special Camel's llair Brushes,
and one book of Velox Transparent Water No Bother. No Muss.
Color Stamps (rz Colors) No Sticky Fingers.
Price $ .SS
tlte Tissue and a Flatiron. Prlce subJect to change without notlce Just
EASTMAN KODAK CO. EASTMAN KODAK CO.
All Dealersr f,[ochester, N. Y. Atl Dealers' Rochester, N' Y'View original page 26Page 27 · Read text
www.orphancameras.com
The Danger Signal
Kodak using N. A. Velox \A/HEN
ll/T r I lTl ' Y Y Liquid Developer the print
Ivlelal I rlpOu turns a canary yellow, and this
I N ideal hand camera tripod, com- color does not disappear until
r r bining rigidity with light weight
and compactness. The Nos. I and 2 fixing is complete.
have revolving head with milled edges, Fifteen minutes in the Acid making it easy to attach or tighten
camera while the tripod is set up. The Fixing Bath will remove this No. 6 has an improved folding head,
permitting the legs to fold flat. Lefs color, provided the bath is of
made of brass tubing, each section strength. telescopingl into the section above it. ProPer
Lower section nickeled; upper section
black enameled. Any section may be If the color remains, the print
removed for the replacing.of a sprinS is not fixed, and should be returned should one become inoperative through
wear or accident. and allowed to remain longer in
No. O,3 Sectiona $2.75 the fixing bath, or transferred to '. No. l. 4 Sections 4.fi)
No,2,5 Sections 4.5O one of proper strength
No. 6, 6 Sections 6.50
Leather Carrying Caee, for EasrnraN Kooar Co.
N o s . O ,l o r 2 . . $ 3 . 7 5
D o . . f o r N o . 6 . . 4 . 5 O
Leatherette Carrying Caoe,
for Nos. O or I 1.35
All prices subject to change
without notice.
bnsrvrAN KoDAK co.
All Dealers' Rochester, N. Y.
48View original page 27From the M. Butkus archive. Original publisher and archive notices are retained.
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