Luminous Landscape Forum

Raw & Post Processing, Printing => Printing: Printers, Papers and Inks => Topic started by: reburns on June 09, 2009, 10:31:01 am

Title: Softproofing blacks & compensation
Post by: reburns on June 09, 2009, 10:31:01 am
G'day,

In the LL Camera-to-Print video chapter 14 on softproofing, Jeff Schewe shows some adjustments to image in softproofing.  One of these is to "punch the blacks" and he uses the "select color range" with a modest fuzziness and copies those selections to a multiplied layer.  That result works well with me except that it is not a re-editable parameter.  Is there a functional equivalent that I can use that allows me to go back and tweak this "punch blacks" adjustment without doing it over with a new layer?  Do folks have a method with a "Selective Color" adjustment layer or something like that?

Cheers, Ralph
Title: Softproofing blacks & compensation
Post by: Schewe on June 09, 2009, 01:42:02 pm
You can vary the initial fuzziness in the first place, the opacity of the resultant multiplied layer or go into the blend if options and vary things there. You can also add a layer mask to get rid of any areas that don't help the image. Pretty wide range of modifications...
Title: Softproofing blacks & compensation
Post by: a_krause on June 09, 2009, 05:24:49 pm
not to hijack this thread, but it has to do with the punching the blacks technique, so here goes..

i know a few printers who as a final step before printing are modifying the black point via a curve [only a few points, like 10 [ they're getting said reading from printing a gradient]] and setting it to a blend mode of luminosity to hopefully open up some of the blacks in the print. If that technique was done in addition to "punching the blacks" are you in result negating the effects?

thanks
Title: Softproofing blacks & compensation
Post by: Schewe on June 09, 2009, 06:18:23 pm
Sure would...

But one could adapt the punch black to select about 25 and below 100 and pop that results to a new layer and set to screen (with a lower opacity) to lighten up the darker tone while still keeping blacks to be black.
Title: Softproofing blacks & compensation
Post by: a_krause on June 09, 2009, 07:09:46 pm
very cool, i'll play around with that when i have time. In your humble opinion are you not a fan of messing with the blackpoint value?

Title: Softproofing blacks & compensation
Post by: Schewe on June 09, 2009, 09:51:49 pm
Quote from: a_krause
In your humble opinion are you not a fan of messing with the blackpoint value?

Why would I???

I'm a visual artist, I really don't care about numbers so much as what the image looks like. So, I never fall in love with "numbers".
Title: Softproofing blacks & compensation
Post by: CynthiaM on June 09, 2009, 10:48:15 pm
The "punch blacks" that you speak of in the LL Camera to Print Video and also in the Epson Print Academy, is this the same as running Punch Blacks from Phototkit?
Title: Softproofing blacks & compensation
Post by: Schewe on June 10, 2009, 11:50:23 am
Quote from: CynthiaM
....is this the same as running Punch Blacks from Phototkit?

Similar...not exacty the same.
Title: Softproofing blacks & compensation
Post by: CynthiaM on June 10, 2009, 12:16:58 pm
Quote from: Schewe
Similar...not exacty the same.

Would you advise not utilizing the Photokit Punch Blacks for softproofing?
Title: Softproofing blacks & compensation
Post by: Schewe on June 10, 2009, 01:54:31 pm
Quote from: CynthiaM
Would you advise not utilizing the Photokit Punch Blacks for softproofing?

No...
Title: Softproofing blacks & compensation
Post by: CynthiaM on June 10, 2009, 03:12:56 pm
Quote from: Schewe
No...

So am I correct in understanding you to say use the Photokit Punch Blacks for softproofing?
Title: Softproofing blacks & compensation
Post by: Jeremy Roussak on June 10, 2009, 03:44:52 pm
Quote from: CynthiaM
So am I correct in understanding you to say use the Photokit Punch Blacks for softproofing?
That's the trouble with double-negative questions, isn't it?

Jeremy

PS: you have some lovely stuff on your web site, but I'm particularly intrigued by the tiny shot you use as your icon here. Do you have a larger version?
Title: Softproofing blacks & compensation
Post by: Schewe on June 10, 2009, 08:56:13 pm
Quote from: CynthiaM
So am I correct in understanding you to say use the Photokit Punch Blacks for softproofing?


Yes, use whatever allows you to get the image the way you want it to do...
Title: Softproofing blacks & compensation
Post by: CynthiaM on June 11, 2009, 04:28:02 pm
Quote from: kikashi
That's the trouble with double-negative questions, isn't it?

Yes, but it was ultimately clarified

Quote
PS: you have some lovely stuff on your web site, but I'm particularly intrigued by the tiny shot you use as your icon here. Do you have a larger version?

Thank you.  The icon image is a staircase in a hotel in Perugia, Italy.  In Lightroom, I desaturated all colors except red.  If you follow the link Brufani Palace Hotel Staircase (http://www.cynthiamerzerphotography.com/gallery/883161_LKjCY#351080494_nXoza) it should take you to the gallery page with the image enlarged on the right.  If you hover on the right side of the large image, you will have a choice to view in larger sizes.

Regards,

Title: Softproofing blacks & compensation
Post by: CynthiaM on June 11, 2009, 04:28:34 pm
Quote from: Schewe
Yes, use whatever allows you to get the image the way you want it to do...

Works for me.  Thanks for the clarification.  Your experience, expertise and participation in these forums is most appreciated.

Regards,
Title: Softproofing blacks & compensation
Post by: Jeremy Roussak on June 13, 2009, 06:39:44 am
Quote from: CynthiaM
Thank you.  The icon image is a staircase in a hotel in Perugia, Italy.  In Lightroom, I desaturated all colors except red.  If you follow the link Brufani Palace Hotel Staircase (http://www.cynthiamerzerphotography.com/gallery/883161_LKjCY#351080494_nXoza) it should take you to the gallery page with the image enlarged on the right.  If you hover on the right side of the large image, you will have a choice to view in larger sizes.
Thanks. It's good!

Jeremy
Title: Softproofing blacks & compensation
Post by: davewolfs on June 13, 2009, 04:18:37 pm
Is this technique also valid for B&W images?

Edit:  Seems like it does