Mainly they have a thicker emulsion. Think of a gravel driveway. With a thin layer of gravel on it, and one with a thick layer of gravel.
Ciao, Graywolf ---------------------------------------------------------------- ----- Original Message ----- From: Shel Belinkoff <[EMAIL PROTECTED]> To: Pentax List <[EMAIL PROTECTED]> Sent: Tuesday, February 12, 2002 1:12 PM Subject: Silver Rich Film (and Paper) > Often the term "silver rich" is used to describe a film (or enlarging > paper), frequently when referring to older style emulsions. Do these > emulsions contain more silver, and just what is meant by more? An > actually higher silver content? Greater surface area exposed to light? > More grains of silver? > > -- > Shel Belinkoff > mailto:[EMAIL PROTECTED] > http://home.earthlink.net/~belinkoff/ > - > This message is from the Pentax-Discuss Mail List. To unsubscribe, > go to http://www.pdml.net and follow the directions. Don't forget to > visit the Pentax Users' Gallery at http://pug.komkon.org . - This message is from the Pentax-Discuss Mail List. To unsubscribe, go to http://www.pdml.net and follow the directions. Don't forget to visit the Pentax Users' Gallery at http://pug.komkon.org .