<body> <a href="menu_en.shtml"></a> <h3 align="center">This is the Official Site of GRN -</h3> <h4 align="center">Rodolfo Namias Group</h4> <h4 align="center">old printing techniques</h4> <br> It is a group founded in 1991, named by the master of Italian photographic chemistry. Some amateurs became aware of the advantages to print their images on non-conventional sensible materials, in order to achieve a quality unobtainable on common silver-bromide papers. <br> <br> <p> Many old printing processes are known nowadays; they were discovered in past times by various photographic chemistry operators <br> <br> Several processes can be classified:: <br> <br> 1 - Gum dichromate <br> 2 - Carbon pigment <br> 3 - Salt prints <br> 4 - Platinum-palladiotypes <br> 5 - Iron salts processes <br> 6 - Swelling processes: oil printing, resinotypes <br> 7 - Special processes: metal etching, toning <br> 8 - Mixed processes <br> </p> <br> <br> <br> <b>NOTE: If you are reading this introduction, it means that your browser is not capable do show frames, or it does not support JavaScript (in this case a further message is visible at the bottom of the page), or these capabilities of your browser have been disabled. <br> These pages contain many instructions in this language to offer the best vision of the images, adapting themselves to your screen resolution. <br> To continue viewing our pages it is necessary to update your browser or to enable frames and JavaScript.</b> <br> In this latter case, after having enabled the browser you will need to reload this page. <!-- qui c'era il contatore --> </body>