Developers reduce exposed silver halides to metallic silver (or dyes in color), turning the latent image into a visible one.
benzen-1,4-diol Hydroquinone
88,44 Kč
Net price: 71,93 Kč
Borax Sodium tetraborate x 5H2O - 1000g
176,89 Kč
Net price: 143,81 Kč
Borax Sodium tetraborate x 5H2O - 10g
43,40 Kč
Net price: 35,26 Kč
Borax Sodium tetraborate x 5H2O - 25 000g
2 358,49 Kč
Net price: 1 917,45 Kč
Borax Sodium tetraborate x 5H2O - 5000g
707,55 Kč
Net price: 575,24 Kč
Borax Sodium tetraborate x 5H2O - 500g
117,92 Kč
Net price: 95,87 Kč
Disodium edetate EDTA * 2Na Complexon III - 1000g
940,09 Kč
Net price: 764,33 Kč
Disodium edetate EDTA * 2Na Complexon III - 100g
164,50 Kč
Net price: 133,73 Kč
Disodium edetate EDTA * 2Na Complexon III - 10g
93,99 Kč
Net price: 76,42 Kč
Disodium edetate EDTA * 2Na Complexon III - 25 000g = 25kg bag
11 202,83 Kč
Net price: 9 108,02 Kč
Disodium edetate EDTA * 2Na Complexon III - 5000g
4 112,91 Kč
Net price: 3 343,81 Kč
Disodium edetate EDTA * 2Na Complexon III - 500g
587,56 Kč
Net price: 477,71 Kč
L - Ascorbic Acid ( Reductor ) Vitamin C - 1000g
294,81 Kč
Net price: 239,68 Kč
L - Ascorbic Acid ( Reductor ) Vitamin C - 100g
93,99 Kč
Net price: 76,42 Kč
L - Ascorbic Acid ( Reductor ) Vitamin C - 10g
27,12 Kč
Net price: 22,05 Kč
L - Ascorbic Acid ( Reductor ) Vitamin C - 25 000g = 25kg
7 050,71 Kč
Net price: 5 732,31 Kč
L - Ascorbic Acid ( Reductor ) Vitamin C - 5000g
1 645,17 Kč
Net price: 1 337,56 Kč
L - Ascorbic Acid ( Reductor ) Vitamin C - 500g
188,03 Kč
Net price: 152,89 Kč
Phenidone (1-phenyl-3-pyrazolidinone) photographic developer - 1000g
5 170,52 Kč
Net price: 4 203,66 Kč
Phenidone (1-phenyl-3-pyrazolidinone) photographic developer - 100g
705,07 Kč
Net price: 573,23 Kč
Phenidone (1-phenyl-3-pyrazolidinone) photographic developer 500g - 500g
2 937,79 Kč
Net price: 2 388,44 Kč
Potassium Bicarbonate KHCO3 - 1000g
270,22 Kč
Net price: 219,69 Kč
Potassium Bicarbonate KHCO3 - 100g
91,69 Kč
Net price: 74,53 Kč
Potassium Bicarbonate KHCO3 - 25000g
4 827,83 Kč
Net price: 3 925,06 Kč
Potassium Bicarbonate KHCO3 - 5000g
1 175,12 Kč
Net price: 955,37 Kč
A developer is a reducing bath: exposed silver halide crystals are chemically converted into black metallic silver, building the image where light struck. The choice of developing agents (e.g., hydroquinone, metol, phenidone, ascorbate) and the supporting chemicals sets the look: speed, contrast curve, grain, and edge sharpness. Stronger or higher-pH developers act faster and increase contrast; solvent-rich developers smooth grain; staining developers add proportional dye stains that alter tonal rendition. In color processes, developers also drive dye-forming reactions through the couplers in the emulsion.