ADOX HR-DEV is a special film developer which is especially made for?the?ADOX HR-50 films. Its curve is optimized to match the special properties of the HR-50.
ADOX HR-DEV improves the curve of HR-50 through the “SPEED BOOST” technology and ensures fine details and deep shadows.?It?straightens the curve, provides a steeper slope out of the shadows and good light differentiation up to zone 9.
The working solution used to determine the sensitivity and contrast values ??was?made using?distilled water. When using hard water, development times must be significantly extended depending on the degree of hardness. An important fact?to take into account when using this developer!
Sensitivity and contrast values ??were determined by the measurement?of a densitometer put directly on the developed film, which corresponds approximately to the measurement under a diffused?enlarger.?When using condensed?enlargers, the resulting sensitivity and contrast levels are higher, so in this case, development times should be reduced by about 15%.
The developer can also be used with other black-and-white films such Kodak Tri-X. It’s formula results in negatives with a very fine grain and a high level of sharpness.
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