MAMEWorld Forums - EmuChat

> The thing that I find interesting is that there's a bluish tint to the large ring
> segments in the photos, whereas there's a yellowish tint to the large ring segments
> in MAME.
>
> Completely turning HLSL off, the colors are accurate to what the system is
> generating, but it's an interesting challenge to try to figure out why the segments
> appear more white with a bluish tint.
>
> There are a few potential explanations, but I'm not sure which is the most plausible.
> In no particular order:
>
> - The camera itself may have had a CCD that's more sensitive towards the blue end of
> the spectrum.
> - The blue phosphors on the CRT itself may have been more vibrant or had a different
> wavelength than the model of CRT that the current phosphor values in MAME are tuned
> towards.
> - The f-number of the camera may have been such that phosphors of a certain
> wavelength were overexposed (see the first point).
> - There may be unaccounted-for Rayleigh scattering through the CRT glass itself.

I think the blueish tint might be an effect of taking a picture off the CRT so, for the correct colors, it might be better to check some screen grabs taken from a capture card, such as those here: http://nerdlypleasures.blogspot.com/2015/03/the-case-for-composite.html

Also, SMS and other related stuff: http://nerdlypleasures.blogspot.com/2016/07/video-potpourri.html