Light source argggghhhh!

[GoonerGary]

I don't why I don't do more beer drinking whilst working, I mean who's going to sack me?

[pisquee]

Red wine for me - though more careful than I used to be, as one night I spilt a whole big glass full over the laptop we did everything on (all artwork/designing and accounts) thankfully it survived (good old Dell Precision worstation!) and I went out and bought big NAS drive next day! ... we now have much more up to date desktop and some bigger NAS drives!

[swimwivsquid]

You can buy daylight colour corrected strip lights from a photographic or graphic arts supplier. Try someone like Marrutts. We used to have them in the lab when we were colour printing so that colour was judged with a constant lightsource.
Daylight itself varies during the day but generally set at 5600degrees Kelvin as a standard. Just check out a good industrial supplier of bulbs they are available.

[JMugs]

I need to do some more research, I have full spectrum bulbs, but are these the same as daylight colour correct?...Google

[JMugs]

I knew I would find a reason somewhere that made sense!
If you remember I said the full spectrum bulbs were bluish in their light output... well after a lot of reading and then the penny dropping I have this...

A colour shift for some browns to green does't take much at all, as browns are actually just dark yellows. So what? Well what happens if you add blue to yellow? Yes you get green. One of the areas that the human eye is very sensitive to is yellow / green shifts. So take a brown printed image add blue light and you may (depending on the shade of brown go) go green.

Simple really!