31. I have a good understanding of subtractive analogue synthesis and I know how it makes the sounds. 32. There are two basic processes used by the model maker to create models : additive and subtractive . 33. Additionally, understanding additive and subtractive lighting tools, light modifiers, and grip gear are essential. 34. :: On a separate note, I understand GDFL copyright to be additive rather than subtractive . 35. Thus the system was neither additive nor subtractive in its conception, but " ordinal ". 36. Such a model is called " subtractive " because inks " subtract " brightness from white. 37. Subtractive methods remove copper from an entirely copper-coated board to leave only the desired copper pattern.38. In more recent painting manuals, the more precise subtractive primary colors are magenta, cyan and yellow. 39. If there is no expander connected to a subtractive port, the end-device cannot be reached. 40. Both units also have a second shutter release for vertical format shooting, and a subtractive frame counter.
