[wbassett]

Garry being a moderator yourself elsewhere I'm sure you're aware that when you move a post from a thread and spin it off into a new thread, it takes the starting post as the thread originator.

Nobody did anything funny using your account or anything like that.

As I mentioned in the PM I have to admit your post was a little odd sounding to me. Whether it was your intentions or not it sounded a bit like a test and would be jumped on after it was answered. I personally would have prefered to see you explain why you feel there is a problem doing conversions and provide some examples, and then explain how you do it and show the process. That way it is an educational experience for people and not something that sounded like a test. In that sense 'testing' someone could be construed as just as inappropriate as you felt mech's comment on you proving you knew how to do it yourself. Not trying to be confrontational here, but I personally would like to know if the person testing someone else actually knows it themself. In this case I am well aware that you are versed in all of this, so again... why not have just explained some of the problems you feel you have seen and what people have done that was wrong.

I tried to explain in my post why it is important to have a common reference point when discussing colors and detailed color theory. Without a common reference it is impossible for people to talk about a color and know if they are indeed talking about the same thing or not.

Although it is true that some industries such as the textile industry still use C as their reference, D65 is the newest and accepted standard. There is nothing wrong with using one value over another as long as everyone is using the same reference value. Seeing that everyone in the Film, Television, and video industry all use D65, that is why we use D65. If we used something else, then we could not discuss and relate things to what is the standard within the industry itself.

One thing to note too is that sRGB is directly tied to D65, which is one reason why some calculators seem to be off a bit when using a different Illuminant source other than D65. One sure way to help avoid and eliminate any confusion and potential 'error' is to just use D65 to begin with.