Cyanotype Experiment - UV LEDs Result

Posted by barnoid Sun, 03 Apr 2011 17:04:10 GMT

Cyanotype Experiment - UV LEDs Result
MakeEpson
ModelPerfectionV500

Cyanotype Experiment - UV LEDs

Posted by barnoid Sun, 03 Apr 2011 17:03:27 GMT

Cyanotype Experiment - UV LEDs
I tried an experiment to see if UV LEDs would work to expose cyanotype sensitised paper, turns out they do. I used three puny standard LEDs, first within a centimeter of the paper to make sure something happened, after about five minutes they had left some good amber splodges. Then I set it up like this with the LEDs about 30cms from the paper and part of a floppy drive motor (probably) to leave an interesting pattern, left for about an hour. See the next picture for the result. I’ll be getting hold of a 10W UV LED soon. This should make unreliable sunny days much less of a problem.
MakeCanon
ModelCanon EOS 5D Mark II
Exposure0.8
Aperturef/4.0
Exposure ProgramProgram AE
ISO Speed200
Date and Time (Original)2011:04:02 15:54:44
Exposure Bias0 EV
FlashOff, Did not fire
Focal Length24 mm
QualityFine
Metering ModeEvaluative
Lens TypeCanon EF 24-105mm f/4L IS
Camera Temperature21 C