freedda
TPF Noob!
I am totally new to film photography. I'm now using a Pinstra pinhole camera, and shooting with Harman Direct Positive Paper (which I can develop in-camera with the Pinstra and I get 4x5 positive images.
I also want to start shooting with regular photo paper and use these as paper negatives for contact printing. I want to know what sort of light source(s) I can get for contact printing.
I have a small 30 Watt 395-400nm UV light for Cyanotype exposures. I also have an extremely bright NuArc exposure unit for making polymer gravure plates. And have seen bulbs from B&H of various wattages AND finally Home Depot has different LED 'full spectrum' bulbs (a.k.a. grow lights), but at normal household wattages, say 45, 60, 100 watts.
Which of these will work - or not? And do you have any recommended exposure times that I can start with and then fine tune.
Reagrds, David
I also want to start shooting with regular photo paper and use these as paper negatives for contact printing. I want to know what sort of light source(s) I can get for contact printing.
I have a small 30 Watt 395-400nm UV light for Cyanotype exposures. I also have an extremely bright NuArc exposure unit for making polymer gravure plates. And have seen bulbs from B&H of various wattages AND finally Home Depot has different LED 'full spectrum' bulbs (a.k.a. grow lights), but at normal household wattages, say 45, 60, 100 watts.
Which of these will work - or not? And do you have any recommended exposure times that I can start with and then fine tune.
Reagrds, David