Originally Posted by dnmilikan
all kinds of masking techiques are applicable to color, too. But since color is an additional "dimension", you might need to dodge/burn to enhance color as well (or give it the expression you like). This can usually not be archived by means of masking. Another obstacle is that you cannot use ortho film for masking in this case. There is also a big difference in handling color negative vs. color reversal prints. Reversal paper has a very low paper grade and is thus more immune to all kinds of color shifts. CN paper on the other hand is very critical to filter settings and light quality.