Austin writes: > Isn't that a curve issue if you say it's > only in the mid tones?
It might be, if that were what I had actually said. But I only mentioned the midtones; I did not say that only they were affected. If you divide a 1000000:1 ratio of luminosity into 256 equal parts, the middle five stops (the midtones) will be divided into only 64 discrete levels, and will represent only 25% of the total dynamic range. If you divide a 1000:1 ratio of luminosity into 256 equal parts, these same midtones will be divided into 128 levels, or half of all available levels, and half of the total dynamic range. If the bulk of your image is recorded in midtones, as would be typical for most images, properly exposed, the former gamut will give you only half the tonal resolution and contrast of the latter. And if you attempt to improve contrast by boosting the increments between the midtones with an S curve, you risk posterization in the first case, but much less so in the second. This is why wide gamut shows poor contrast in midtones if displayed as-is, and why it may produce unacceptable results if you simply try to play with the curves. ---------------------------------------------------------------------------------------- Unsubscribe by mail to [EMAIL PROTECTED], with 'unsubscribe filmscanners' or 'unsubscribe filmscanners_digest' (as appropriate) in the message title or body
