RE: UV exposure unit and sunlight vs. artificial light
Check out Amergraph. They have a website. They have a fairly new unit that is designed for Alt. It will do UV based as well as conventional thanks to dual lights. Benefits of a dedicated unit: there's a light integrator...sort of like a meter...that guarantees repeatable exposures. Vacuum table is also an enormous convenience. I have the new unit's predecessor and it's a luxury to nail exposure every time. Neal -----Original Message----- From: francis schanberger <frangst@gmail.com> Sent: 12/14/2008 6:10:37 PM To: alt-photo-process-l@usask.ca <alt-photo-process-l@usask.ca> Subject: UV exposure unit and sunlight vs. artificial light I have been charged with acquiring a new UV exposure unit for my school because of an impending move early summer. basically the university where I teach is moving us from an old but fully functional building, where we have ground floor studios and classrooms to a 4th floor location. Because its a multiuse building and we can't use the stairs without tripping a fire alarm, alt process exposures will be more easily done inside. Basically the students and faculty will be using two elevators to get in and out of the building. The only exposure units I have used have been the black light tubes (BBL?) and a NuArc 261K. Judy, was this addressed in Post Factory? I may have misplace one issue. Any suggestions for a starting point? Is there a discussion in the archives of the differences in prints caused by printing with different sources of UV? Putting repeatable time issues aside, does anyone favor artificial light like the NuArc over sunlight or sunlight over the black light tube boxes? Why? What processes and light sources work well together? -francis |