tag:blogger.com,1999:blog-1320126156594375642.post6727534253784460215..comments2024-03-27T11:02:08.037-05:00Comments on LEICA Barnack Berek Blog: A BRIEF HISTORY OF PHOTOGRAPHIC FILMLEICA Barnack Berek Bloghttp://www.blogger.com/profile/09055435560407011075noreply@blogger.comBlogger4125tag:blogger.com,1999:blog-1320126156594375642.post-74325640320796260452021-06-21T09:42:39.851-05:002021-06-21T09:42:39.851-05:00Agfa Gevaert is by far the best known German photo...Agfa Gevaert is by far the best known German photographic company. Otto Perutz founded his own company in 1880, a factory for making dry plates. This became the Perutz-Photowerke. The company was bought in 1964 by Agfa. Chemische Fabrik J. Hauff & Co. GmbH was taken over by Agfa in 1955. Another well known German photographic company was Dr C. Schleussner Fotowerke GmbH. They operated under the ADOX label. Adox films are available to this day.LEICA Barnack Berek Bloghttps://www.blogger.com/profile/09055435560407011075noreply@blogger.comtag:blogger.com,1999:blog-1320126156594375642.post-86848313773895265372021-06-21T09:37:06.987-05:002021-06-21T09:37:06.987-05:00I have heard of Gevaert as in Agfa-Gevaert, but Pe...I have heard of Gevaert as in Agfa-Gevaert, but Perutz and Hauff are unknown to me.Anonymousnoreply@blogger.comtag:blogger.com,1999:blog-1320126156594375642.post-20174694788475169772021-06-21T09:36:38.805-05:002021-06-21T09:36:38.805-05:00I agree that Kodachrome was a bit of a hassle to g...I agree that Kodachrome was a bit of a hassle to get processed. That obviously is the very reason why all the other Kodak transparency films later on used essentially the same process as initially developed by Agfa.<br />I am not a chemist, but as I understand it, Agfa's solution was in a way ingeniously simple. To prevent color coupler migration, they simply made the resulting color couplers large enough that they could not pass the general structure of the emulsion. With other words, the color couplers got stuck in their respective emulsion layers.LEICA Barnack Berek Bloghttps://www.blogger.com/profile/09055435560407011075noreply@blogger.comtag:blogger.com,1999:blog-1320126156594375642.post-66193163947666868012021-06-21T09:35:56.515-05:002021-06-21T09:35:56.515-05:00Do you have any idea how Agfa finally solved the p...Do you have any idea how Agfa finally solved the problem of color coupler migration to the other emulsion layers? I understand Kodak's solution with the Kodachrome, but that turned out to be somewhat of a hassle since it required for the film to be sent to a processing lab.Anonymousnoreply@blogger.com