The quinone-thiosulfate amplifier is designed to increase the density of black and white negatives. Usually, small-contrast negatives with small densities are subjected to amplification, which cannot be printed well without increasing its contrast and density, when natural means such as the choice of more contrast paper and the developer are no longer effective. The negatives to be amplified should be well fixed and washed. In addition, the chemical features of the amplification process not only require special cleanliness when processing negative, but also impose increased requirements for the purity of working solutions. In particular, it is recommended to make them on distilled or, at least, well boiled water.
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The item description and parameters are generated automatically and may contain errors and inaccuracies. Please review the photos of the item carefully — you will receive exactly the copy shown. If you notice an error, we apologise and kindly ask you to report it if possible. This text was translated automatically and may contain inaccuracies.
