DOI Artikel:
Editors, The Kodak Developing-Machine
DOI Artikel:Acetone-Sulphite [unsigned]
DOI Seite / Zitierlink: https://doi.org/10.11588/diglit.29887#0082
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THE KODAK DEVELOPING-MACHINE.
PROBABLY THE most important innovation in
practical photography during the past few years is
the developing-machine for films, recently intro-
duced by those progressive manufacturers who are
ever striving to simplify the processes of photog-
raphy for the masses. Beginning with the introduc-
tion of the cartridge daylight-film which permitted
loading in broad daylight, the Eastman Kodak
Company has steadily aimed at the abolition of the
dark-room, and by placing this machine, so simple in
construction and operation, upon the market at a price within the means of
every one, has now succeeded in enabling the photographer to dispense with
ruby light and ill-ventilated closet. It is now possible to load, develop and
fix in the open. The photographer can to-day develop his films regardless
of his surroundings and not only can he at once prove the correctness of his
exposures and test the condition of his apparatus at any time, but the result-
ing negative will be generally cleaner and better than heretofore.
EVEN those photographers using plates exclusively have herein a means
whereby they can, by the simple attachment of a film-holder of small size to
even the largest camera, make these same tests and thus obviate the necessity
of constant worry lest their exposures prove failures. This is not the least
important value of this wonderful little instrument.
Editors.
ACETONE-SULPHITE. The names of the new products continually
being offered to the photographer is legion, so that the novice finds himself
absolutely at sea when compelled to make his choice. There is nevertheless
a decided tendency discernible upon the part of certain manufacturers to
furnish chemicals intended for photographic uses, that combine in one body
many functions for which at present a variety of chemicals are necessary.
Acetone-Sulphite is one of these new products which will become, we
believe, indispensable to every photographic laboratory. Its main value
lies in its ability to replace the provokingly unstable sulphite of soda in the
preparation of practically all developing-solutions, and on account of its
exceptionalsolubility, it affords the photographer a means of making up
highly concentrated solutions. When added to hypo-sulphite of soda it
gives a satisfactory acid fixing-bath; in conjunction with permanganate of
potash, it acts as a reducer; on a mercury-bleached negative, it will
intensify; with certain developers it acts as a restrainer; with others as an
accelerator; and together with Edinol it makes an exceptional developer for
bromide papers, giving a beautiful deposit of silver and pure whites. These
hints should induce photographers to carefully study its possibilities.
64
PROBABLY THE most important innovation in
practical photography during the past few years is
the developing-machine for films, recently intro-
duced by those progressive manufacturers who are
ever striving to simplify the processes of photog-
raphy for the masses. Beginning with the introduc-
tion of the cartridge daylight-film which permitted
loading in broad daylight, the Eastman Kodak
Company has steadily aimed at the abolition of the
dark-room, and by placing this machine, so simple in
construction and operation, upon the market at a price within the means of
every one, has now succeeded in enabling the photographer to dispense with
ruby light and ill-ventilated closet. It is now possible to load, develop and
fix in the open. The photographer can to-day develop his films regardless
of his surroundings and not only can he at once prove the correctness of his
exposures and test the condition of his apparatus at any time, but the result-
ing negative will be generally cleaner and better than heretofore.
EVEN those photographers using plates exclusively have herein a means
whereby they can, by the simple attachment of a film-holder of small size to
even the largest camera, make these same tests and thus obviate the necessity
of constant worry lest their exposures prove failures. This is not the least
important value of this wonderful little instrument.
Editors.
ACETONE-SULPHITE. The names of the new products continually
being offered to the photographer is legion, so that the novice finds himself
absolutely at sea when compelled to make his choice. There is nevertheless
a decided tendency discernible upon the part of certain manufacturers to
furnish chemicals intended for photographic uses, that combine in one body
many functions for which at present a variety of chemicals are necessary.
Acetone-Sulphite is one of these new products which will become, we
believe, indispensable to every photographic laboratory. Its main value
lies in its ability to replace the provokingly unstable sulphite of soda in the
preparation of practically all developing-solutions, and on account of its
exceptionalsolubility, it affords the photographer a means of making up
highly concentrated solutions. When added to hypo-sulphite of soda it
gives a satisfactory acid fixing-bath; in conjunction with permanganate of
potash, it acts as a reducer; on a mercury-bleached negative, it will
intensify; with certain developers it acts as a restrainer; with others as an
accelerator; and together with Edinol it makes an exceptional developer for
bromide papers, giving a beautiful deposit of silver and pure whites. These
hints should induce photographers to carefully study its possibilities.
64
