The Digital Negative: Using Chartthrob & Quad Tone Rip

[@herbhoover]

Thanks for this info. The GL thing in your QTR profile is gloss optimizer.

[@analogueandy8x10]

Yup. And I've filled it with LLK.

[@herbhoover]

Have a 3880 that automatically swaps photo black and matte black, but you can't print with both in one pass. It's a shame, because they both block UV.

[@lillianvalentine1975]

Lovely!! I went from CT to EDN.

[@braxus351W]

I really like your last image in the video. It shows very well. Also it looks like you're using a Mac, which I believe you told me before. I'd love to see you do a video on scanning B&W negs on your Epson 750. Love to see your method of scanning.

[@analogueandy8x10]

Thanks, Scott. I shot that image in Japan last Summer, with my Mamiya-Six folder, on Rollei IR.Yes, I use the Mac mainly because I have QTR on it, and the scanner driver. I find it easier to make QTR profiles on it, too. I might do a scanning video, but nothing really fancy going on, really...😁

[@ruudmaas2480]

Beautiful result.

[@paultilt9608]

Great stuff

[@steveh1273]

What software did you use to generate the curve? What would be the process to make a black and white negative from a digital image to print in the darkroom? So you scanned your tree negative, imported into photoshop, applied the curve to your scanned negative, printed the negative and made the cyanotype? Thanks, and nice result!

[@analogueandy8x10]

I used Chartthrob to generate the curve. It's a free download. The process to make a digital negative from a digital file would be the same. All that is different is that you wouldn't need to scan anything. Get the file from digital camera into photoshop, make any necessary adjustments to the image, apply the curve, invert to a negative, then print out with QTR.

[@plutomond-]

@@analogueandy8x10 You need an old version of Photoshop to run ChartThrob though, don't you? Unfortunately my desktop with CS6 on it died and I don't think this nifty little programm works on newer versions..

[@analogueandy8x10]

@@plutomond- I run it on CS5 on my Mac, as well as the 2023 version of PS on my teacher laptop.