Quote Originally Posted by psvensson View Post
So it's back to halogens for me - I've ordered a 50W bulb. Now, what I really want is to build a head with banks of green and blue LEDs that can be switched independently for split printing ...

I too have been playing around with the use of LEDs. So far, it has just consisted of exposing a few scraps of VC paper to various coloured LEDs.. Calibrating the setup for specific grades is going to be one challenge, getting an even illumination across a 5x4 neg, another.