The American annual of photography . n, modification (per-haps) and enlargement, there can be no question as to the valueof the tank for developing. It represents no economy of timewhen but one or two plates are to be treated, but if half adozen or more are in hand at once it assuredly does, not tomention the great advantage resulting from the decrease ofthe time spent in the devitalizing dark-room. The writer hassecured two admirable daylight tanks (imported from Eng-land) and is able to retire to any closet for the ten minutesnecessary to load the plates into these tanks, all subsequentopera
The American annual of photography . n, modification (per-haps) and enlargement, there can be no question as to the valueof the tank for developing. It represents no economy of timewhen but one or two plates are to be treated, but if half adozen or more are in hand at once it assuredly does, not tomention the great advantage resulting from the decrease ofthe time spent in the devitalizing dark-room. The writer hassecured two admirable daylight tanks (imported from Eng-land) and is able to retire to any closet for the ten minutesnecessary to load the plates into these tanks, all subsequentoperations, up to setting the plates up to dry, being carried outin full daylight—in summer, out of doors. It has been shownby physiologists that working in darkness or by artificial light—especially red light—lowers the vitality, and from the simplepoint of view of physical welfare the tank represents an ad-vance on development by inspection, quite apart from the factthat a better average of negatives is thus produced. Develop- 74. Pd •JPi 5 <o H WI—I Q 75 ment by inspection depends on individual judgment, which ismodified by varying conditions, by haste, excitement, even bythe varying length of time in the dark-room, and anythingwhich eliminates this source of error tends to produce betterresults. The writer, even if working for varying qualities ofnegative, would still prefer to do the original developing bytank, relying on subsequent intensification or reduction, carriedout in leisurely fashion in daylight, for the desired changes,and feeling confident of thus securing better negatives than byvarying the time of development under dark-room might be well to mention that the writer developed all ornearly all his negatives by inspection for a number of years,before adopting the tank, and has consequently had liberalexperience of both methods. As to the developer used, severalyears of experimental work with practically every reducingagent on the market hav
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Keywords: ., bookcentury1900, bookdecade1910, bookpublishernewyo, bookyear1919
