Archived posting to the Leica Users Group, 2007/03/01
[Author Prev] [Author Next] [Thread Prev] [Thread Next] [Author Index] [Topic Index] [Home] [Search]I have no idea where this thread originated from but I agree!! When you find a happy medium between a particular film and exposure, and, chemistry and development, then your ability to handle a variety of situations on one roll of film greatly increases. If that the sort of thing your looking to do. It also is true that for this all to work ones primary photographic subject should be light. Chris At 01:53 PM 3/1/2007, you wrote: >Under exposure and overdevelopment do not properly describe fine >photographic technique. > >Ideally we want to expose properly to provide desired shadow detail >while developing properly to control highlight separation for any >particular scene's contrast range. > >While this is very applicable to sheet film, and to some degree 120 >rolls, where you use an entire roll for one condition, it becomes >tricky when you've exposed a 36 exposure roll of 35mm film in 5 or 6 >different contrasted scenes. > >So. You want to find the ISO rating : development combination which >will best suit the full range of contrast situations that your roll >will find itself exposed to. Once you've hit that ideal compromise. >You really don't want to 'over expose' or 'under develop' (or 'under >expose' and 'over develop') unless you're trying to save an important >frame or group of frames. > >The terms: >'over exposure' implies too light and blown highlights >'under exposure' implies too dark and lost shadows >'over development' implies blown highlights >'under development' implies lost shadows. >In all cases these terms also imply poor technique, and lack of >control and/or understanding of what's going on with your materials >and chemistry. > >Regards, >George Lottermoser >george@imagist.com > >_______________________________________________ >Leica Users Group. >See http://leica-users.org/mailman/listinfo/lug for more information Chris Saganich, Sr. Physicist Weill Medical College of Cornell University New York Presbyterian Hospital chs2018@med.cornell.edu Ph. 212.746.6964 Fax. 212.746.4800 Office A-0049