Dry the negatives

Duotone cyanotypes #4 – Print the negatives

Part 4 in Matthew Bary’s series on duotone cyanotype provides instructions for printing negatives using various Canon printers and transparency film. It includes details on printer settings, ink choices, and the printing process for both cyan and magenta + yellow negatives. Writer and photography / Matthew Bary Once you have created a negative Duotone cyanotypes #3 – Make negatives using GIMP you can print the negatives. It may seem odd to … Read more

Brighness negative

Duotone cyanotypes #3 – Make negatives using GIMP

Part 3 in Matthew Bary’s series Duotone cyanotype is a detailed guide for creating cyanotype negatives using Gimp software. It covers steps for flipping images, adjusting colors, adding registration marks, separating images into color components, applying curves, and exporting negatives for cyanotype printing. Writer and photography / Matthew Bary Lets start with a picture we want to use based on the previous step Duotone cyanotypes #2 – Pick your subject. … Read more

The True Inverted Digital Negative Figure 7

The True Inverted Digital Negative

John Riches at TruNeg has a method using mathematics to fix the failure of the inverted image to make a workable negative. If nothing else, a great lesson in how digital negative works. Writer and photography / John Riches at TruNeg Disclaimer: Please note this product is for sale. We do not get any kickback from this article, and we have not tested the spreadsheet. The article contains enough information … Read more

Two prints with different results

Spikes in development – Problem and Solution

Removing the spikes in development is important, in order to work with better data and get more precise correction curves for the best linearization of our photographs. Paolo Saccheri has tested this below on cyanotypes, though it is the same on other alternative processes. Writer and photography / Paolo Saccheri What are spikes? Spikes are sudden bumps in values, reading a step tablet test print used to calibrate a printing … Read more

The printer settings I use at the moment within Photoshop

Digital negative printer settings

Paolo Saccheri shares settings used for making digital negatives and highlights the difference the software can make. Writer and graphics / Paolo Saccheri What printer settings should be used for creating digital negatives? Many print makers ask what are the correct printer settings to use to print their digital negatives. The real answer is that there is no fixed true answer. It all depends on your process, i.e. the sum … Read more

Scott Wittenburg proofing negatives.

Making large format negatives with X-ray film

Scott Wittenburg shares his experience of working with large format x-ray film photography and how he uses them as an inexpensive and fun way to create large-format negatives. Writer and photography / Scott Wittenburg I began my X-ray film experience after building a homemade 11×14 view camera from scratch several years ago. Having finished construction, I started looking for traditional 11×14 black and white sheet film online so I could … Read more

F-SAP Table f-stop exposure times 1.33

F-SAP 1.33 Table f-stop exposure times

Writer and photography / Gerard Smeets Gerard Smeets shares with us a table with f-stop related exposure times between 1 and 64 minutes plus the manual for this table. The table is also available to download. Finding the standard exposure time In many manuals of alternative processes, there is a text like this: ‘make a test strip with 8 times at an interval of 4 minutes, starting with 4 minutes’. … Read more

Registering a negative for the gum bicromate process step 4

A simple negative registration method 

A simple, but effective OHP negative registration technique for gum printing. The method can be used for multiple pass single negative prints as well as CMYK negative prints.

Grey gamma on digital negatives 6b

When to use gray gamma 1.8 or 2.2 for digital negatives

Regardless of the workflow you use to make digital negatives, consistency is the key to achieving repeatable results. It’s worth questioning whether or not the original step wedge was made in gray gamma 1.8 or gray gamma 2.2.

Digital negatives

A three step method for making digital negatives by Ron Reeder and Christina Z. Anderson, an excerpt from Gum Printing and Other Amazing Contact Printing Processes.

Sarah van Keuren

A Non-Silver Manual: Desktop negatives

The chapter called “Desktop negatives” of Sarah Van Keuren’s book “A Non-Silver Manual: Cyanotype, Vandyke Brown, Palladium & Gum Bichromate with instructions for making light-resists including pinhole photography”, written by Sandra C. Davis.

Sarah van Keuren

A Non-Silver Manual: Enlarged negatives

The chapter called “Enlarged negatives” of Sarah Van Keuren’s book “A Non-Silver Manual: Cyanotype, Vandyke Brown, Palladium & Gum Bichromate with instructions for making light-resists including pinhole photography”.

Sarah van Keuren

A Non-Silver Manual: Light-Resists without camera or computer

The chapter called “Light-Resists without camera or computer” of Sarah Van Keuren’s book “A Non-Silver Manual: Cyanotype, Vandyke Brown, Palladium & Gum Bichromate with instructions for making light-resists including pinhole photography”.

Laura Blacklow handpainted photograph

Glossary and explanations for Digital Negatives

Starting out with making digital negatives you may come across some terms you’ve never seen before, like "gamut", "ppi" and "random dots". This glossary may make a little more sense of it all.

negatives clay harmon

Digital Negatives: The Color Ratio Method

There are several different ways of making a digital negative, but all seem to involve a Photoshop curve at some point. In this article geologist Clay Harmon applies his skills to photography and has developed his own curve for a Pyro-like digital negative – to be used with an Epson 2200, but, it can also be tweaked for other printers. All free to download here.

Christina Z Anderson

Distressing Negatives

Excerpt from The Experimental Photography Workbook, 4th Edition.
Christina Z. Anderson describes four ways to creatively destroy your negatives, giving them a little extra bite.

Load a curve in photoshop

Curve corner – Photoshop and Gimp curves for making digital negatives

A curve could be described as the representation of all the tones in an image, from highlights to shadows. Photoshop curves are a great tool for creating a balanced digital negative. They help you control the tonal values and contrast of an image or a negative. Now you can download ready-made curves here – or upload yours to share with others.