post alternative techniques

**pau3** · 12-Oct-2019, 10:09

Originally Posted by carbo73

That's a wonderful comparison, many thanks. By now I have only minor experiences with cyanotypes & kallitypes, with mixed results. Sun exposure is way unreliable, so I'm in the process of building a kind of UV box. Hope it works.

I did build mine, with uv fluorescent tubes. Not pretty, but it did make the difference in my work.

Best,
Pau

**NedL** · 12-Oct-2019, 10:41

I know this isn't a popular opinion, but I much prefer using the sun. UV lamps mostly for test prints.
I suspect it might not matter as much if you use DN.

**Erik Larsen** · 12-Oct-2019, 11:57

Some cedars from a recent fishing trip to Idaho. 8x10 FP4. Van Dyke print on HPR. Digineg used.

**jon.oman** · 12-Oct-2019, 12:49

Nice one Erik, this one works well as a Van Dyke.

**Jim Noel** · 12-Oct-2019, 13:08

Originally Posted by pau3

I did build mine, with uv fluorescent tubes. Not pretty, but it did make the difference in my work.

Best,
Pau

I have a fluo box which I built years ago, and a NuArc. with the slower processes like cyanotype and salt I prefer the sun. I have a UV meter which cost me 1/2 as much as materials to build the fluo box and very accurately tells me how many units of Uv the print is receiving. I have had the meter about 2 years so it should still be available on the web.

**Erik Larsen** · 12-Oct-2019, 21:22

Originally Posted by jon.oman

Nice one Erik, this one works well as a Van Dyke.

Thanks Jon, I Agree I kinda like the warmth it adds.

**Tri Tran** · 28-Nov-2019, 17:52

Happy Thanksgiving.
The Grotto
8x10 Carbon transfer print
18in TT signature lens

**Peabodius** · 2-Dec-2019, 19:15

Relatively new to the forum. I found it while researching Petzval style lenses, and then also stumbled across this thread. Wonderful information, not to mention the great work everyone is sharing.

Most of my alt. process stuff has been with casein bichromate. I love color, but I don't find RA processing to be very gratifying (certainly not like the control you have in the black and white darkroom). Bichromate let me hand print in color, and have a ton of control over the look of the print.

Everything is shot on 4x5 Ektar100, scanned to digital, and separated in Photoshop. Negatives were printed on transparency sheets at 40"x50" size. The UV box is a monster that I constructed using several 48" UV fluorescents. Monster sink, monster paper, etc, etc. I've since moved, and no longer have the darkroom setup (although I did bring the UV box). I plan on scaling down the size and continuing to use the process. 40x50 is just not easy to make, although I did get some nice prints eventually.

Any comments or questions are welcome. I don't know anyone else doing non-silver processes at large sizes, but I'm sure someone is. I'd be happy to share my experiences, and equally happy to soak up someone else's insight.