John Riches

Advanced negatives: According to John Riches, developer of TruNeg, creating an accurate digital negative is more complex than simply inverting an image in editing software. Standard photo programs invert pixel values arithmetically, but this does not replicate how a true photographic negative responds to light. As a result, inverted negatives often produce weak shadows, uneven midtones, and excessive highlight contrast. John shares his thoughts. Writer and photography / John Riches … Read more

John Riches at TruNeg has a method using mathematics to fix the failure of the inverted image to make a workable negative. If nothing else, a great lesson in how digital negative works. Writer and photography / John Riches at TruNeg Disclaimer: Please note this product is for sale. We do not get any kickback from this article, and we have not tested the spreadsheet. The article contains enough information … Read more