An Interesting Thought - At least to Me

[Kim Coxon]

Much of the discussions concerning the M8 "issue" is about the way it renders black objects. Several people have described photography as "painting with light". If you take this to it's final conclusion, there can't be a problem because black light doesn't exist! 😀 You cannot mix "black" from the primary colours. As far as reflection is concerned, if an object reflects all colours equally, it will appear white in a white light source. If it absorbs some wavelengths and not others, it will take on a coloured hue. For something to appear perfectly black, it has to totally absorb all wavelengths and reflect nothing.

I know - silly thought but it just appealed to my warped sense of humour!

Kim

 

[Flyfisher Tom]

in other words, based its unintended anomaly, the M8 is the only object that can survive the journey through a black hole and emerge on the other side in its magenta glory

 

[Sparrow]

Much of the discussions concerning the M8 "issue" is about the way it renders black objects. Several people have described photography as "painting with light". If you take this to it's final conclusion, there can't be a problem because black light doesn't exist! 😀 You cannot mix "black" from the primary colours. As far as reflection is concerned, if an object reflects all colours equally, it will appear white in a white light source. If it absorbs some wavelengths and not others, it will take on a coloured hue. For something to appear perfectly black, it has to totally absorb all wavelengths and reflect nothing.

I know - silly thought but it just appealed to my warped sense of humour!

Kim

You can mix an optical black from the three primary colours, sorry,
red pigment absorbs yellow and blue light,
yellow absorbs red and blue
blue absorbs yellow and red,
mix them in equal proportions and all the light is absorbed!
you get black

 

[jamiewakeham]

So why are black bodies so damned bright? 🙂

Jamie

 

[Kim Coxon]

I know,
That's my point. If you mix all 3 pigments in equal proportions, all light is absorbed. This means nothing is reflected. It "appears" black becuase nothing is there. Therefore, it doesn't exist! 😀 You can have a ray of light of just about any colour except black.

Kim

You can mix an optical black from the three primary colours, sorry,
red pigment absorbs yellow and blue light,
yellow absorbs red and blue
blue absorbs yellow and red,
mix them in equal proportions and all the light is absorbed!
you get black

 

[Sparrow]

I know,
That's my point. If you mix all 3 pigments in equal proportions, all light is absorbed. This means nothing is reflected. It "appears" black becuase nothing is there. Therefore, it doesn't exist! 😀 You can have a ray of light of just about any colour except black.

Kim

so grey is?

 

[Kim Coxon]

Imperfect absorbtion. 😉

Kim

so grey is?

 

[jaapv]

So the M8 is inadequately equipped to photograph....nothing??? 😀

 

[Kim Coxon]

Or to put it another way, it is perfectly equipped to photograph something but it can't cope with photographing nothing. 😀

Kim

 

[Toby]

Yes, but how does this help a rock photographer who takes a picture of the Black Eyed Peas and they come out looking like Deep Purple ?

 

[jaapv]

On a more serious note: this whole excitement has helped me develop my photographic vision. Suddenly I start differentiating different colours of "black"around me.

 

[Nachkebia]

I am sorry but painting with light does not work with digital... capturing the light might do but not painting and don`t make me explain

 

[jaapv]

Why not, Vladimer; Photoshop uses brushes..😉 Photography means literally writing (aka painting) with light. So digital is not photography? I seem to recall you saying that before....

 

[Nachkebia]

Indeed it is not 😀 ralph gibson agrees with me, ermm or I agree with him 😀 😀 Check out new nitendo game concole WII you can play teniss and shake your hands but it is not real tenniss 😀 it is almost the same 😀

 

[Kim Coxon]

Watercolours are different from oils which are different from gouache. The results are very different but are they not all paintings? You may not like the look of one medium but that doesn't detract from it's validity.

Kim

 

[Nachkebia]

Watercolours are different from oils which are different from gouache.

all these are different films, while digital is a computer graphics in comprerasion with watercolours and oils...

 

[Nachkebia]

And yes indeed with CGI - computer generated imagery and with photoshop brushes you can do something that looks like real oil painting, as you can do it with digital image and photshop

 

[Kim Coxon]

If these are different films then perhaps digital is an airbrush. A slightly different way of applying the medium. 😉

Kim

all these are different films, while digital is a computer graphics in comprerasion with watercolours and oils...

 

[Magnus]

Always wondered why chrome lenses were more heavier than the Black ones, yes ....

 

[jaapv]

Indeed it is not 😀 ralph gibson agrees with me, ermm or I agree with him 😀 😀 Check out new nitendo game concole WII you can play teniss and shake your hands but it is not real tenniss 😀 it is almost the same 😀

I'll remember that the next time I listen to a CD... It is NOT music... Not that I don't agree with you for a large number of CD's 😉