Archived posting to the Leica Users Group, 1998/04/09
[Author Prev] [Author Next] [Thread Prev] [Thread Next] [Author Index] [Topic Index] [Home] [Search]The best possible photographic paper can only reproduce a limited amount of tones. Correct me if I am wrong but I have heard that it was something like LESS than 512 for a b&w gray scale of each color. Whereas there are millions of tones existing in nature. A transparency can capture more and that is ONE of the reasons why slide has a narrower exposure lattitude. Therefore all reproductions, through any lens, are compressed into a shorter scale & a gamma of 1.0 is much contrastier then any actual full range scene. Marvin ===================================================== In a message dated 98-04-09 13:10:56 EDT, John McLeod asks: << I have several questions about these two lenses, and lens in general. Can a lens (e.g. A) be "too contrasty" or is the appearance of "excessive" contrast really a film contrast issue? Second, can a lens (through coatings or otherwise) ADD contrast to a scene or can it only let pass what light is available to be passed to the film? Third, can a lens have greater overall contrast, and at the same time, lower micro-contrast, or is a high contrast lens simply a high contrast lens, in all respects? Thanks. John McLeod >>