question about b&w wet prints

Started Dec 10, 2013 | Discussions
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v1fan Regular Member • Posts: 136
question about b&w wet prints

in RGB 0,0,0 is the value for black, but if printing in cmyk RGB 15,15,15 is the black point. what about wet prints?

complete black in the paper will look like a black block, so what is the RGB equivalent value of the black point in wet print?

thanks in advance

Red5TX
Red5TX Senior Member • Posts: 1,586
Re: question about b&w wet prints

You might try the Printing & Printers forum for this one.  I'm not sure everybody reads the Open forum, and there's likely to be more expertise over there.

PenPix Senior Member • Posts: 2,220
Re: question about b&w wet prints
1

v1fan wrote:

in RGB 0,0,0 is the value for black, but if printing in cmyk RGB 15,15,15 is the black point. what about wet prints?

complete black in the paper will look like a black block, so what is the RGB equivalent value of the black point in wet print?

thanks in advance

If you were to take a colorimeter and measure the "black" area in a print, you will find that it has different values in the the RBB channels (e.g.. 3,12,8).  This will vary due to the paper base, the emulation, the filter settings of the enlarger, and the chemistry.  This is true of both B&W paper and colour paper.

Black is as black as the paper allows.

tex Veteran Member • Posts: 6,842
Correct, and...
2

you can add in developers (to a certain extent) and toning for good measure.

People used to "enthuse" over paper almost as much as they pixel peep today---although I'd argue with more validity back then. Types of paper, grades of paper.  It was a big deal, and could make a huge difference in the look of the print.

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Mark Scott Abeln Veteran Member • Posts: 7,804
Re: question about b&w wet prints

v1fan wrote:

in RGB 0,0,0 is the value for black, but if printing in cmyk RGB 15,15,15 is the black point. what about wet prints?

complete black in the paper will look like a black block, so what is the RGB equivalent value of the black point in wet print?

If you print onto B&W paper using a light jet printer, your RGB value of (0,0,0) will print the darkest the particular paper can print, which depends on how you develop the paper.

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