Interesting item that might make a nice UV contact printer

[Rick Olson]

Rick,

The V28 is similar to the ULF-28 in many ways but it uses a metal halide light source. The CWX of the ULF-28 has several advantages, which you can read about in the article at unblinkingeye. The ULF-28 is also a multi-purpose exposing unit in that with the use of appropriate options it can also be used for exposing VC silver papers (with light integration and vacuum) as well as alternative processes. The conversion is made by switching to a low-power tungsten light source.

Sandy

Sandy ... that ULF-28 looks great! I was trying to put together a vacuum frame set-up using a second-hand NuArc device and trying to hook up a vacuum pump, etc. Looks like a hassle, especially since the rubber mat is cracked (another post on APUG about that) and I am not an electrician nor a specialist in getting this stuff going. I just want something that works and is efficient. Better yet, Amergraph even has a discounted rate for members of APUG!

I did notice the conversion option for using low-power tungsten. Is the light diffused in some way to avoid hot-spots? I plan to use this for 7 x 17. *** Just read the article on Unblinking Eye. I think I'm sold!! ***

Thanks again!
Rick

[sanking]

Sandy ... that ULF-28 looks great! I was trying to put together a vacuum frame set-up using a second-hand NuArc device and trying to hook up a vacuum pump, etc. Looks like a hassle, especially since the rubber mat is cracked (another post on APUG about that) and I am not an electrician nor a specialist in getting this stuff going. I just want something that works and is efficient. Better yet, Amergraph even has a discounted rate for members of APUG!

I did notice the conversion option for using low-power tungsten. Is the light diffused in some way to avoid hot-spots? I plan to use this for 7 x 17. *** Just read the article on Unblinking Eye. I think I'm sold!! ***

Thanks again!
Rick

Rick,

I tested the ULF-28 extensively over several months and offered my suggestions to AmerGraph as to how to optimize it as a multi-purpose printer that could work with most photographic processes, including alternative processes, contact speed silver chloride papers, and VC papers. However, since I print very rarely withi VC silver processes I decided not to have my own unit retro-fitted with the low power tungsten light source, so your question about hot-spots with this option is not something I can address. I have all of the other options offered except this one.

However, the desingers addressed the issue of even lighting so well in the initial desing I feel confident they did a good job with the low-power tungsten light as well.

Sandy

[Rick Olson]

Rick,

I tested the ULF-28 extensively over several months and offered my suggestions to AmerGraph as to how to optimize it as a multi-purpose printer that could work with most photographic processes, including alternative processes, contact speed silver chloride papers, and VC papers. However, since I print very rarely withi VC silver processes I decided not to have my own unit retro-fitted with the low power tungsten light source, so your question about hot-spots with this option is not something I can address. I have all of the other options offered except this one.

However, the desingers addressed the issue of even lighting so well in the initial desing I feel confident they did a good job with the low-power tungsten light as well.

Sandy

Thanks, Sandy ... I plan to use the device mostly with the pending Lodima paper and any Azo that I might be able to find. VC and graded paper less frequently, but will probably go for the low-voltage lighting option to make sure I am covered for all possible papers.

Rick