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Monique Graham

Moire? Help please!

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Hi Damien,

Recently started shooting with the R6 and editing this session I've noticed this coloured Moire on the client's clothing.  I have read your article and I can still see it in the raw file at 100%.

Please see 100% crop

Thanks,
Monique

100 percent crop.jpg

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Hi Monique, I think this will work for you ...

A Channel Mixer adjustment layer, with these values:

  • Red 0, +101, 0, -2
  • Green 0, +97, 0, +1
  • Blue 0, +95, 0, -2

Make sure you get the numbers in exactly the right order.

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Thanks for the reply Damien.  Not sure I'm doing it right, it just made it all monochrome.   

So I open the photo in Photoshop, create new channel mixer adjustment layer, then go to the red channel and adjust to the values R +101, G 0, B -2, the go to green channel and put in those values you listed and so on?  

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That's correct.  And it will make the whole image the same greeny-grey colour as the shirt.

Then, of course, you mask it to the shirt only.

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Will try again...so when you say 

  • Red 0, +101, 0, -2

What does the 0 directly after the Red mean?  Can't see where I need to input that zero?  Sorry if that's a silly question!

Screen Shot 2021-03-04 at 3.58.34 pm.png

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Ah, I see the problem.  Your Properties panel is too small, so you can't see the fourth field.

I've given you four numbers, which you have to put in the four fields, in the order given.  0 in the first field.

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Success!! You are a legend!! Thank you so much! 

I  have a similar problem with mum who was wearing a blue dress.  Will this number combination work for different colours or will I  need a new set of numbers to apply to her dress?

 

crop3.jpg

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Same dress, different photo.

Do you know why this is this happening?  Will I need to be dealing with this often?

Thanks again for your help!

bluedress2.jpg

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For this one, it should be sufficient to add a Solid Color layer of appropriate blue colour, and set that layer's blend mode to "Color", then gently mask it on to the problem areas.

1 hour ago, Monique Graham said:

Do you know why this is this happening?  Will I need to be dealing with this often?

You're having a run of bad luck.  Fine detail like clothing fabric makes it happen.

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