Thanks for the clear explanation, Mark! I tried printing the same file twice in Relative Colorimetric. Once with Black Point Compensation on and once with it off. Hard to see a difference, but with it turned on the print seemed to pick up a bit more contrast. I’m leaving it on for now. Paul
> On May 5, 2018, at 3:11 PM, Mark C <[email protected]> wrote: > > Relative colorimetirc maps out of gamut colors to the nearest in gamut color > in the desintation color space. Perceptual maps out of gamut colors into the > destination color space and also shifts other colors to preserve the relative > differences between them. Relative Colorimetiric could result in blocked up > colors or a loss of color separation, but it preserves the accuracy of in > gamut colors. With Perceptual Colorimetric colors retain their relation with > each other and avoid getting blocked up, but there can a loss of color > accuracy throughout the image. > > A photo of vibrant flowers might look blocked up printed with relative > colorimetric, but a photo of a person holding the flowers might have weird > skin tones with perceptual. > > In the tests I did I didn't see much difference between relative and > perceptual with Epson K3 inks and glossy or luster paper. I saw slight > differences with Epson enhanced matte paper and preferred perceptual. I > assume the photo papers and PK inks have a broader gamut than the matte paper > and MK ink. > > Mark > > > > Paul Stenquist wrote: >> I use Relative Colorimetric without black point compensation. Haven’t really >> thought about it for years. My prints are nice. I don’t know if they could >> be better. I print on Epson Premium Luster or Exhibition Fiber and use the >> ICC profiles. Perhaps I should experiment with other settings? >> Paul >> >>> On May 5, 2018, at 10:28 AM, Mark C <[email protected]> wrote: >>> >>> Paul Sorenson wrote: >>>> Kind of looking for a consensus...when printing using ICC profiles what is >>>> your preferred rendering intent? Perceptual or relative colorimetric? >>>> Does your choice vary by paper surface? >>>> >>>> -p >>>> >>> I start with perceptual with black point compensation enabled. I don't >>> change the setting for different papers, but that's something a moot point >>> since I very rarely use anything but glossy or luster papers. >>> >>> Mark >>> >>> --- >>> This email has been checked for viruses by AVG. >>> http://www.avg.com >>> >>> >>> -- >>> PDML Pentax-Discuss Mail List >>> [email protected] >>> http://pdml.net/mailman/listinfo/pdml_pdml.net >>> to UNSUBSCRIBE from the PDML, please visit the link directly above and >>> follow the directions. >> > > > -- > PDML Pentax-Discuss Mail List > [email protected] > http://pdml.net/mailman/listinfo/pdml_pdml.net > to UNSUBSCRIBE from the PDML, please visit the link directly above and follow > the directions. -- PDML Pentax-Discuss Mail List [email protected] http://pdml.net/mailman/listinfo/pdml_pdml.net to UNSUBSCRIBE from the PDML, please visit the link directly above and follow the directions.
