An internegative film is a negative that is produced directly from an original color reversal film or transparencies. All other color duplicating negatives that are produced from anything other than reversal film are known as color-duplicating negatives.
Internegative film is made to give a greater contrast separation in the highlights without raising the overall image contrast in the negative. Internegative film is designed to give excellent color balance and fine grain quality along with pure color reproduction and excellent sharpness.
However, because digital techniques have greatly decreased the demand for commercial internegative film, some companies such as Kodak will no longer be making it. It may be hard to find because of this.