445 requirements compared to 473 for mixing white

When I had my green turned up way too much, I noticed more the effects on the palette and number of available colours. White still seemed a pretty white, maybe a tad yellow. I have a feeling would have been much more visible in a side by side comparison.

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Originally Posted by mccarrot

With 445 you need less power to get a white, but what about the brightness of the separate blue color only.

Chroma shows:
1W of 445nm gives 28 luminous flux
1W of 473nm gives 70 luminous flux

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Yesterday evening I had my 445nm running at a safe 400mW but to me the dark blue looked almost as bright as my 150mW 473nm, tonnight I will put the next to eacht other and compare side by side.

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Originally Posted by -bart-

@ smog
Do you blame speaker builders for trying to approach a flat phase and frequency response and using the latest insights in acoustics ?

We all experience music differently, so why bother looking at a frequency response of a speaker in the first place? Surely people should trust their eyes and ears when purchasing a new pair of speakers, and not look at graphs. But you can not deny that taste is subjective.?

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Using a flat phase/frequency response (just as using 6500K white in Chroma) is good for estabilishing a baseline, which you can then adapt to suit your perception best.

Bluntly put, if I install a high-tech digital EQ in my stereo system, mike my living room and measure the frequency response from every end of the room, and hammer the EQ so my phase and frequency responses are as flat as they can be, the whole music experience is gone.

Sure, from a mathematical, computational point of view, the response of my audio system is correct. But it's just those little quirks and oddities that give a sound system (player, amplifier, speakers) a specific colour, often to your taste. That's why you chose it in the first place.

Lighting fixtures and lasers are no different. Some lighting techies really don't like the gobos or colour wheels on a Robe spotlight and are lyrical about Martins, and the other way round, just as some people here don't want anything but 473nm, argon, or mixed gas for their blue or full colour projectors.

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Originally Posted by Stoney3K

Using a flat phase/frequency response (just as using 6500K white in Chroma) is good for estabilishing a baseline, which you can then adapt to suit your perception best.

Bluntly put, if I install a high-tech digital EQ in my stereo system, mike my living room and measure the frequency response from every end of the room, and hammer the EQ so my phase and frequency responses are as flat as they can be, the whole music experience is gone.

Sure, from a mathematical, computational point of view, the response of my audio system is correct. But it's just those little quirks and oddities that give a sound system (player, amplifier, speakers) a specific colour, often to your taste. That's why you chose it in the first place.

Lighting fixtures and lasers are no different. Some lighting techies really don't like the gobos or colour wheels on a Robe spotlight and are lyrical about Martins, and the other way round, just as some people here don't want anything but 473nm, argon, or mixed gas for their blue or full colour projectors.

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QFT!


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