Archived posting to the Leica Users Group, 2002/01/04
[Author Prev] [Author Next] [Thread Prev] [Thread Next] [Author Index] [Topic Index] [Home] [Search]Rei, you pick zone ten or d-max precisely because this should be maximum black. You can't use a leader because even in minimal development it will go black, you want an exposure that will with proper development be d-max but if there are problems with the developer may not be. You pick zone III because you want a developed exposure that shows some detail and zone V because the midtones make the image. In other words, you are testing to make sure that your developer system is consistent and is delivering what it is supposed to; and if it isn't some diagnosis as to what is wrong so it can be fixed inexpensively and with repeatability. Happy to help Don Dory dorysrus@mindspring.com - -- To unsubscribe, see http://mejac.palo-alto.ca.us/leica-users/unsub.html